heat stress on late sown wheat



Terminal Heat Tolerance in Bread Wheat Terminal Heat Tolerance in Bread Wheat Новинка

Terminal Heat Tolerance in Bread Wheat

Wheat, an important crop and widely grown all over the world is affected by terminal heat at grain filling stage. Heat stress affects the crop at grain filling when sowing of wheat is delayed due to delay in harvest of highly remunerative preceding crops. Fast wind flow and increasing temperature causes poor grain filling by affecting the wheat physiological mechanisms affecting yield. The objectives of this investigation were to study the heat susceptibility index, correlation and the nature and magnitude of gene effects governing the yield and its components in both timely sown and late sown experiments. Breeding for Terminal Heat Tolerance is difficult owing to its complex quantitative nature. Increasing global temperature made it necessary to search for tolerant genotypes and understand the underlying nature of genes to breed effectively.
Screening of Wheat Varieties for Thermotolerance Against Heat Stress Screening of Wheat Varieties for Thermotolerance Against Heat Stress Новинка

Screening of Wheat Varieties for Thermotolerance Against Heat Stress

Alterations in the global climate are predicted to have vital penalty for crop production. Heat stress is a major abiotic stress limiting crop production. It reduces wheat growth by affecting various physiological and biochemical processes The present study was focused on to check the EC, heat shock protein, proline and sugar, chlorophyll content at seedling, tillering and spikelet formation stages of wheat. Selected local wheat varieties were grown in Petri plates and at seedling stage these were transferred to the pots containing soil, sand and animal manure in equal proportion. Electrical conductivity (EC) was determined to check cell membrane stability (CMS) which was greatly affected by heat stress. Protein, proline, amino acids contents showed an increase in their content while sugar, chlorophyll content exhibited a decrease under stress conditions.
Assessment of Plant Geometry on Chickpea Genotypes under Late Sown Assessment of Plant Geometry on Chickpea Genotypes under Late Sown Новинка

Assessment of Plant Geometry on Chickpea Genotypes under Late Sown

This book “Assessment of plant geometry on chickpea genotypes under late sown ” has written for Rice and Cotton growing agro-climatic zone of India to achieve good and sustainable yields under late sown conditions. In Indian condition late harvesting of rice and cotton in kharif season delayed the succeeding rabi crop so in that duration which chickpea genotypes and best suitable dates to grow chickpea with minimum effect of normal dates.
Physiological Basis of Heat Tolerance in Wheat Physiological Basis of Heat Tolerance in Wheat Новинка

Physiological Basis of Heat Tolerance in Wheat

Globally, about seven million hectares of wheat is affected by heat stress. Heat stress is responsible for reducing wheat yield. This problem will be further increased due to global warming. Now-a-days high yielding varieties of wheat can not sustain for longer period due to their sensitivity to fluctuation in changing environment. To overcome this acute problem physiological information is needed to develop appropriate varieties for heat stress condition for better wheat production. Perusal of literature shows that physiological studies on heat tolerance in wheat are limited. In this work different wheat cultivar were evaluated through physiological approaches like membrane thermostability, Seed metabolic efficiency, Stem reserves mobilization, Canopy temperature depression, Sterility, growth and yield performance in relation to heat tolerance. In this book, the findings of this research are discussed in a simple, easy and lucid manner. Therefore, the book should prove to be a valuable resources to the teachers, researchers, postgraduate students in Agriculture, Botany, Crop Physiology and Breeding.
Mechanisms of Heat stress tolerance in wheat Mechanisms of Heat stress tolerance in wheat Новинка

Mechanisms of Heat stress tolerance in wheat

Mechanism of heat stress tolerance in wheat was investigated with the following objectives: study the physiological and biochemical changes and role of antioxidant enzymes, investigate the effect of heat stress on different growth parameters, yields and yields components and molecular analysis of heat stress tolerance in wheat. Significant reductions in all physiological traits (Chlorophyll content, MSI, RWC and Relaxation time T2), growth parameters (LAI, CGR, RGR, NAR, and plant height), yield and yield components under stress conditions were detected. The protective role of antioxidant enzymes was clearly seen through the significant increased in the enzymes activity in tolerant genotypes which was associated with better physiological systems and more stable yield under stress condition. The reduction in the photosynthetic rate under heat stress in susceptible and tolerant genotype was associated with reduction in Rubisco enzyme activity and low level of expression of small subunit of Rubisco particularly in PBW 343. High level of expression of HSP 101 in tolerant genotypes leads to suggestion that this particular protein might have protective role under high temperature stress.
Water Relations and Nutrient Uptake as affected by Drought in Wheat Water Relations and Nutrient Uptake as affected by Drought in Wheat Новинка

Water Relations and Nutrient Uptake as affected by Drought in Wheat

Laboratory and wire house experiments were conducted to determine response of different spring wheat cultivars to water stress imposed after three and six weeks of seedling emergence. It was found that drought stress significantly decreased the water relation, nutrient uptake and grain yield of all the wheat cultivars. The late drought stress imposed six weeks after seedling emergence significantly reduced the uptake of nutrients than early drought stress which was imposed three weeks after seedling emergence.
Variability study of wheat genotypes Variability study of wheat genotypes Новинка

Variability study of wheat genotypes

Nepal is under the effect of climate change and faces drought and heat stress in wheat growing season. Adoption of improved varieties has replaced the indigenous wheat germplasms which has narrowed the genetic base. This has resulted in genetically vulnerable situation. Due to this there is a chance of epidemic outbreak in biotic and abiotic stresses which will cause a significant loss in wheat production. For this new and diverse genes should be identified and combined. Forty genotypes were tested under irrigated, drought and heat stress conditions with Fourteen physio-morphological traits used for the study. Highly Significant variation among the genotypes was found for the traits under study. Paired t-test was conducted to determine statistical differences among stress and non-stressed environments. Phenological period was reduced under drought and heat stress conditions. SPAD, Canopy temperature and relative water content made selection under stress effective. Variablity study and PCA based on morpho-physiological traits gave clear differences in the genotypes used which could be used to select for the drought and heat stresses.
Impact of Non Monetary Inputs in Cultivation of Late Sown Wheat Impact of Non Monetary Inputs in Cultivation of Late Sown Wheat Новинка

Impact of Non Monetary Inputs in Cultivation of Late Sown Wheat

Wheat (Triticum aestivum L.) a major cereal crop has been cultivated in India. The way India increased its wheat production and helped the food security system through “Wheat Revolution” is worth to be remembered. It was that the wheat revolution and green revolution have made its self sufficient in food grains and that there will be no going back to old import days, when the food economy was either ‘ship to mouth’ or ‘field to mouth’. The potential of high yielding varieties, the development of special non-monetary management practices like sowing methods is a prime need that promotes the efficient utilization of nutrients, water and space, reduces the cost of cultivation (mainly labourers, wage), save the seed and fertilizers, causes easiness in rouging in the seed production and inter-cultural operation, better control of seeds, insect pest and diseases. To workout suitable method of sowing, variety and time of nitrogen application under late sown crop which could perform well in an important food crop of the area. This book has covered the information on different aspects of Wheat cultivation. This book will of immense value to the students, teachers and research workers.
Genetic Study of Terminal Heat Tolerance in Bread wheat Genetic Study of Terminal Heat Tolerance in Bread wheat Новинка

Genetic Study of Terminal Heat Tolerance in Bread wheat

This book wrote primarily aimed to understand the inheritance of terminal heat tolerance in bread wheat (Triticum aestivum L. em.Thell). I hope the findings embodied in the work would be of immense value to wheat breeders and geneticists alike in enhancing wheat productivity in heat stress regions of the world and of the country in particular. Terminal heat caused by high temperatures during kernel development has emerged as a major threat to wheat production globally and has become priority number one in wheat breeding programme in view of global warming, forced to breed for terminal heat tolerant varieties having good tolerance against heat stress. In this endeavour genotypes/ germplasm/wild sources of heat tolerance should be identified and its inheritance work out for utilization in wheat breeding programs to enhance its productivity to meet the ever increasing demand of wheat to feed the growing population. DEDICATED TO MY BELOVED PARENTS
Response of late-sown wheat to nitrogen Response of late-sown wheat to nitrogen Новинка

Response of late-sown wheat to nitrogen

Wheat crop being the world''s leading cereal crop has the major role in the hunger reduction from the mushrooming world population. With the development of high yielding varieties and new technologies, the production and productivity since late 1970s has increased significantly up to this date. Still there are various yield limiting factors and one of them is the late-sowing condition especially in the agro-zones where rice-wheat system prevails. In the recent context of climate change and global warming, the production practices of many crops have been pushed to gradually change. In the rice-wheat system of cropping pattern, late sowing of wheat is becoming a common phenomenon and for any reason of late sowing, suitable variety/genotype selection with proper fertilization especially only nitrogen management can be the boon to greatly boost up the production and net returns from wheat cultivation. This book is especially important to those who are willing to conduct research activity in the field of crop science & wheat agronomy, farmers, students, academicians and development professionals.
Effect of sowing time and methods on soil moisture and wheat yield Effect of sowing time and methods on soil moisture and wheat yield Новинка

Effect of sowing time and methods on soil moisture and wheat yield

Establishment method and sowing time has great influence on soil moisture conservation and wheat yield. Conservation tillage helps in early sowing of the wheat in rice-wheat cropping pattern and helps to escape the heat stress in winter wheat. Conservation tillage has positive impact on yield by conserving the moisture and prevent the wheat from anthesis and post anthesis drought where as the conventional tillage has higher germination percentage and good crop stand. Mulching in winter wheat plays significant role in soil moisture conservation and lowers the weed population.
Heat Stress on Late Sown Wheat Heat Stress on Late Sown Wheat Новинка

Heat Stress on Late Sown Wheat

Wheat (Triticum aestivum L.) is the most important and major cereal crop grown in Pakistan. As staple food of the people, occupying the central position in farming agriculture policies, it dominates all agronomic crops in terms of acreage and production. It is a principal source of carbohydrates and protein both for human beings and animals.Its grains contain carbohydrates 60-90 %, protein 8-15 %, fat 1.5-2.0 %, inorganic ions 1.2-2.0 % and 1 % vitamins such as B-complex and E. Climate change has been identified as the single most yield-reducing factor for wheat. It has many facets, including changes in long term trends in temperature. The impacts of these changing conditions on agriculture are already being seen, yet there are still considerable gaps in our knowledge of how agricultural systems will be affected by both short- and long-term changes in climate, and what implications these changes will have for rural livelihoods, particularly among the most vulnerable.
Improving wheat productivity Improving wheat productivity Новинка

Improving wheat productivity

Ever increasing population of the globe and use of productive agricultural lands for housing has posed serious threat to future food supply. Low productivity of wheat due to different management practices is a serious problem. Different wheat cultivars are sown in Pakistan in same conventional row spacing ignoring their tillering potential. Optimizing row spacing for different wheat cultivars differing in tillering capacity improves the productivity and thus minimizing the future food shortage risk. Low tillering cultivars sown in narrow row spacing give higher outputs compared with wider spacing. So, to obtain higher productivity low tillering cultivars can be sown in narrow row spacing while; those having higher tillering potential perform best in wider row spacing. In crux, husbandry practices; row spacing in particular, must be choosen keeping in view the tillering potential of wheat cultivars around the globe.
Climate change impacts on wheat productivity using CERES-wheat model Climate change impacts on wheat productivity using CERES-wheat model Новинка

Climate change impacts on wheat productivity using CERES-wheat model

Climate change is one of the most important environmental challenges with its implications on food security, water supply, health, energy etc. The wheat production in the country is highly variable due to inter seasonal weather variability and has been projected to be 109 mt by 2020 which needs sincere efforts to mitigate the effect of climatic aberrations. Specifically, the main purpose of this study was to quantify the impact of changes in temperature, solar radiation and CO2 concentration that affect the level of wheat production. The impact of climate change on wheat production can be minimized through adaptability, varietal management and agronomic practices using CERES-wheat model. In Uttarakhand, wheat productivity accounted 15 % to 30 % more with the timely sown crop (20th November) than late sowing. Wheat yield has the positive correlation with CO2 concentration and negatively correlated with temperature. This book, therefore, provides a new metric of success for farmers to deciding agricultural operations and minimize the risks and extremely important to planners in the developing countries which will be the most vulnerable to the effects of global warming.
Wheat Cultivars under Late Sown Conditions Wheat Cultivars under Late Sown Conditions Новинка

Wheat Cultivars under Late Sown Conditions

Wheat (Triticum aestivum L.) is the most important staple food in Pakistan. The gap between potential yield and actual grian yield is attributed to late sowing, weed infestation, water shortage and non-recommend sowing varieties for different agro-ecological zone. Besides other reasons, one main reason of low productivity is due to deviation from the recommended sowing time of a genotype for a particular set of environment and thus resulting in failure to achieve its higher potential capacity. Various wheat cultivars respond differently to agro-ecological conditions of a particular area due to difference in their genetic makeup and physical processes. Due to genetic diversity, various cultivars of wheat respond different to sowing dates. The differential response may be due to their genetic makeup to adopt in a particular set of environment. In Pakistan, the land that occupied by cotton is main constraints of sowing wheat at optimum time because the harvesting of cotton is completed during November and mid-December. So it is necessary to find out such varieties which can be sown under a wide range of sowing time in Pakistan.
Silicate role in combating salt stress in wheat crop Silicate role in combating salt stress in wheat crop Новинка

Silicate role in combating salt stress in wheat crop

This book overwhelming body of solid research on the role of Si on the growth of wheat under salt stress. The book falls naturally into two parts . The first covers the importance of Si nutrition in agriculture. The second looks at the best suited eco environmentally friendly silicate technology for the growth of plant under salt stress, This book will be a useful resource for all those professionally involved –progressive farmers,-industrial client-plant scientists and students of agro sector.
Effect of heat Input on Residual Stress in Submerged Arc welding Effect of heat Input on Residual Stress in Submerged Arc welding Новинка

Effect of heat Input on Residual Stress in Submerged Arc welding

Submerged arc welding generates high amount of heat and due to continuous heat and cooling the residual stress developed in weldment. This book is an effort to understand the temperature distribution and residual stress development in welding. The thermocouples are used to online measurement of temperatures and XRD technique for the residual stress measurements. Control of residual stress development can improve the weld strength and reduce distortion.
Breeding for Improvement of Water Stress Tolerance in Bread Wheat Breeding for Improvement of Water Stress Tolerance in Bread Wheat Новинка

Breeding for Improvement of Water Stress Tolerance in Bread Wheat

The present research studies were conducted to determine the effects of water stress on various yield and yield associated traits of bread wheat. Nine newly evolved wheat genotypes (two mutant lines, 3 conventionally bred and one doubled-haploid line, 3 released high yielding varieties) were evaluated along with drought tolerant check varieties using various water stress levels under field conditions. The split plot experimental design was used with four treatments: T1: single irrigation was applied at seedling stage (stress induced during all other stages); T2: two irrigations were applied at seedling and anthesis stage (stress applied at tillering, booting, heading and grain filling); T3: three irrigations were applied at seedling stage, at booting stage and at milky stage (stress imposed at tillering and anthesis); and T4: (Control) where genotypes were given normal (six) irrigations. Water stress showed significant effects on various quantitative and physiological traits. Genotypes showed different response to various stresses. This book will comprehensively present the brief research studies conducted for improvement of water stress tolerance in wheat genotypes.
The effect of boron on wheat sown at different dates in the AEZ-9 The effect of boron on wheat sown at different dates in the AEZ-9 Новинка

The effect of boron on wheat sown at different dates in the AEZ-9

Bangladesh is divided into 30 Agro Ecological Zone (AEZ). Among them AEZ-9 (Old Brahamaputra Foodplain) has a great importance for wheat production and wheat research. The soil of this region is Sonatola series, silty loam with slightly acidic, developed under aquic moisture regime and variable temperature conditions. The largest Agricultural University is situated of this region. So, most of the wheat research has been conducted by many researcher. Due to rapid increase of population, our farmers want to produce more grain crops like wheat. So fertilizer application, maintaining sowing dates and variety selection is very important for wheat production. My research will help for those researcher and farmers, for the maximum yield of wheat in the AEZ-9 region of Bangladesh.
Computational analysis of heat stress in Plants Computational analysis of heat stress in Plants Новинка

Computational analysis of heat stress in Plants

Global Warming is one of the challenges that we are facing in today’s era. The effect of global warming is not only limited to human beings but its effect can also be seen on plants. Increased temperature causes heat stress in plants and this ultimately decreases the quality and quantity of crops. The need of this hour is to develop crop plants with enhanced thermo tolerance. In this report we have used data mining techniques to show that heat stress is an important stress affecting the agricultural production. At the molecular level post translational modifications have been shown to be influenced in plants under heat stress. We have studied Palmitoylation, Sumoylation, S- Nitrosylation and Nitration in the plant gene sequences associated with heat stress and not associated with heat stress. We show that sumoylation is an important property which is possibly influenced in large number of proteins associated with heat stress in a wide variety of plants. This property can be used for identifying novel sequences associated with heat stress in plants.
Heat stress in crops Heat stress in crops Новинка

Heat stress in crops

Plants have vital role in the lives of Humans, especially Cereal crops are important source of food for Human and other animals. Some environmental factor limiting the yield of these commercially important plants, heat stress is one of these factors. Now there is need to produce the more yield of the plants under limiting environmental conditions to fulfill the requirements of humans and other animals by producing the research techniques. The present book describes the environmental heat stress impacts on the plants especially on maize. Heat stress effects the morphology, physiology and reducing the yield of the maize crop. Plants adapt different methods to cope with the heat stress condition, heat stress produce reactive oxygen species that retards the plants growth. Heat shock protein development has been found in tolerant plants. Different osmoprotectants are used as priming and foliar treatments to improve the crop’s growth and yield.
Thermotolerance Mechanism in Cotton Through Genes Identification Thermotolerance Mechanism in Cotton Through Genes Identification Новинка

Thermotolerance Mechanism in Cotton Through Genes Identification

Heat stress causes major losses to cotton seed and lint yield. Introduction of heat stress tolerance to Arkansas cotton varieties is highly desirable. However, very little is known about the molecular basis of heat stress tolerance in cotton. The present study attempted to identify heat stress tolerance genes in two heat-tolerant cotton cultivars compared with two heat-susceptible cotton cultivars. In addition, physiological parameters were studied to analyze the correlation between gene expression and physiological data.
Amelioration of Heat Stress on Rabbits Amelioration of Heat Stress on Rabbits Новинка

Amelioration of Heat Stress on Rabbits

A long hot climate (from May to October) and short cool climate (from December to March) characterize the sub-topical climate. In hot climate months, rabbits are very susceptible to heat stress, since they have un-functional sweat glands and have difficult in eliminating body heat when the environmental temperature is high. Alleviation of heat-stress can be carried out with growth promoters, minerals, amino acids or vitamins supplementation and housing design. The present study was planned to study the effects of climatic temperatures in summer season of Egypt and how to ameliorate the adverse effect of heat stress by using different housing models and a highly concentrated supplement containing critical components and essential micronutrients, added to water drinking of the rabbits doe, to improve their performance, reproduction and immune parameters.
Evolution of Drought Tolerant Wheat Variety 'Khirman' Evolution of Drought Tolerant Wheat Variety 'Khirman' Новинка

Evolution of Drought Tolerant Wheat Variety 'Khirman'

Bread wheat (Triticum aestivum L.) is the staple food crop of Pakistan and is being grown over a wide range of environments. Grain yields of wheat are highly affected due to biotic and abiotic stresses. Water stress is the main environmental constraints besides high temperature and salinity stress. New high yielding wheat varieties possesses better tolerance to drought are desperately needed for cultivation in wheat growing areas. A high yielding and drought-tolerant wheat variety Khirman has been developed and released for general cultivation in Sindh province of Pakistan. The variety has potential to produce better yield under water stressed environments. The variety has gained popularity among farming community. This book will present the case study of the release of variety ‘Khirman’. The information will be helpful for researchers, scientists and students while selection and development of new stress-tolerant genotypes.
Wheat (Triticum aestivum L. and T. durum L.) Wheat (Triticum aestivum L. and T. durum L.) Новинка

Wheat (Triticum aestivum L. and T. durum L.)

The productivity of wheat (Triticum spp.), an important staple food grain crop is under the constraints of drought stress. Molecular characterization through RAPD and SSR markers specific for drought stress in 22 wheat genotypes displayed two major clusters viz. Triticum aestivum L. and T. durum L. which was further divided into irrigated and rainfed. Principle component analysis was consistent with dendrograms. All the markers displayed PIC value greater than 0.5 showing its usefulness in detecting differences within the genotypes. Artificial stress induced by polyethylene glycol for biochemical and physiological characterization showed significant differences among the genotypes and drought levels which correlated with the molecular characterization. The proline content was increased during stress with the induction of stress specific proteins as revealed by SDS-PAGE. The tolerance of wheat genotypes to drought stress was assessed based on molecular markers, physiological observations and biochemical analysis.
Management of heat stress in broilers by organic feed supplements Management of heat stress in broilers by organic feed supplements Новинка

Management of heat stress in broilers by organic feed supplements

Heat stress is one of the major problems of tropical and subtropical areas of the world, adversely affecting the production performance of poultry. Heat stress suppresses broilers immunity against disease, body weight gain and increases mortality rate in the flock. The avian gastrointestinal tract is populated by a diverse and dynamic microbiota, generally considered important for host nutrition and immunity. About 300 to 500 bacterial species reside broilers gut. The key functions of the gut microbiota in host health and well-being includes nutrients digestion and absorption,and significant up-regulation of innate and acquired immunity.There are quite a few studies depicting effect of heat stress on gut microbiota. Perturbations in the GIT micobial composition that occur as a result of stress can be settled by prebiotics or probiotics supplementations. These two supplements are also known for promoting growth performance and immunity of broilers. However, use of these supplements in broilers reared under tropical environment has not been examined. Therefore, we planned this project to examine effects of heat stress and pre/probiotics on broilers health and performance.
Wheat genotypes for irrigated and rainfed area using stress indices Wheat genotypes for irrigated and rainfed area using stress indices Новинка

Wheat genotypes for irrigated and rainfed area using stress indices

The book encompasses valuable information on identification of supervier wheat genotypes under moisture stress and irrigated environments. Drought limit the seed production especially wheat, as the crop is grown in areas where artificial means of irrigation are either lacking or inadequate. Low yield of wheat is also due to moisture stress during its growth period, mainly due to uncertain rainfall. The solutions include the development of different irrigation systems which require huge expenses. The best option is to develop drought tolerant wheat genotypes. Therefore, the screening of elite and exotic wheat germplasm for drought tolerant was preferred to develop desirable wheat varieties with greater yield potential under both irrigated and rainfed conditions which can boost up grain yield. The book can be an asset for the researchers, planner and agriculture students. It should in each and every library around the country.
Molecular and morphological analysis for Stay Green trait in Wheat Molecular and morphological analysis for Stay Green trait in Wheat Новинка

Molecular and morphological analysis for Stay Green trait in Wheat

The present research work published in this book is mainly to increase the worldwide production of wheat to meet the demand of human beings.As the world is facing many environmental effects i.e. abiotic stresses mainly drought, heat etc. which directly lead to the downfall in the production of cereal crops, pulses, vegetables, fruits etc..So the scientists need to develop new varieties which can show maximum production on yield and quality basis in abiotic stress conditions by using Biotechnological tools and techniques. In the present research work small contribution was made to overcome the problem of abiotic stresses on agriculture.
Amelioration of Drought Stress on Wheat Cultivars Amelioration of Drought Stress on Wheat Cultivars Новинка

Amelioration of Drought Stress on Wheat Cultivars

The present study was carried out in a greenhouse to evaluate the positive effect of foliar application of glycine betaine (10mM), grain presoaking in salicylic acid (0.05 M) and their interaction on drought tolerance of two wheat (Triticum aestivum L.) cultivars (sensitive, Sakha 94 and tolerant, Sakha 93). Exogenous application of glycine betaine (GB), salicylic acid (SA) or their interaction could counteract the adverse effects of drought by improvement of growth vigor of root and shoot, leaf area, retention of pigment content, increasing the concentration of organic solutes (soluble sugars and soluble nitrogen) as osmoprotectants, keeping out the polysaccharides concentration and/or stabilization of essential proteins in both wheat cultivars. Grain presoaking in SA or foliar application with GB alleviated the stress imposed by drought by keeping water within leaves and consequently recover the turgidity of stressed plants particularly the sensitive ones. Furthermore, the effect was more pronounced with GB+SA treatment. The applied chemicals appeared to alleviate the effect of water stress on wheat yield and the biochemical aspects of yielded grains.
Genetic Diversity For Drought Resistance In Wheat Genetic Diversity For Drought Resistance In Wheat Новинка

Genetic Diversity For Drought Resistance In Wheat

The genus Triticum includes bread (Triticum aestivum) and durum wheat (Triticum durum) and constitutes a major source for human food consumption. Drought is currently the leading threat on world's food supply, limiting crop yield, and is complicated since drought tolerance is a quantitative trait with a complex phenotype affected by the plant's developmental stage. Drought tolerance is crucial to stabilize and increase food production since domestication has limited the genetic diversity of crops including wild wheat, leading to cultivated species, adapted to artificial environments, and lost tolerance to drought stress.
Stress and Motivation Stress and Motivation Новинка

Stress and Motivation

Stress is a common problem faced by employees in different industrial sectors. Various researches on BPO industry focus on employee stress. Stress may be due to long working hours, bad working conditions,disorganized work, overall organizational climate is unsuitable. Stress leads to physical and mental problems. Stress may not be negative all the time it can be positive as well. The major impact of stress can be seen on employee motivation. Keeping the motivation theories aside, one of the important parameters of motivation is stress free environment. This study focuses on different types of stress and the impact of stress on employee motivation in BPO sector. BPO sector has a lot of cases on stress due to day and night shifts, long working hours, bad working conditions and various other issues. Stress is beneficial when it is good or raises the employeeproductivity.
Heat elicitor treatment reduces water loss of fruits during storage Heat elicitor treatment reduces water loss of fruits during storage Новинка

Heat elicitor treatment reduces water loss of fruits during storage

In recent years, many researchers have shown the importance of pre-storage heat stress for maintaining fruit freshness longer during storage at non- chilling temperatures. This technique has successfully been applied on a number of fruits and vegetables storage process. In the present research project, amanatsukan orange and mature green tomato (cvs. Momotaro and Carousel) were treated by a single heat stress [hot air (HA) or hot water (HW)] and a double heat stress (combination of HA+HW or HW+HA) before storage. The pre-storage heat treatment decreased the rate of water loss of the fruits during storage as compared to the untreated control. The combination of double heat stress had a substantial effect in delaying fruit color development. Therefore by making certain adjustments in time/temperature regimes, such treatments can facilitate postharvest handling and enable a longer period of storage before the fruit are put on display at a retailer.
Effect of heat stress on blood parameters in workers of iron industry Effect of heat stress on blood parameters in workers of iron industry Новинка

Effect of heat stress on blood parameters in workers of iron industry

Heat has prominent effects on physiological parameters.Along with the biochemical factors (ALT, AST, ALP, Total proteins and Albumin), blood formed elements (RBCs, WBCs and Platelets) are also affected by the long hours of heavy heat loads. Blood electrolytes also show significant variations by heat stress leading to the metabolic acidosis. Increased blood flow towards skin is promoted by the release of vasodilator from the sweat glands. Heat may also cause lethal damages to vital organs like heart, liver and kidney etc. Industrialized countries face major hazards in the form of occupational diseases while developing countries are stressed by occupational injuries. Steel consumption in construction industry is used as a barometer to measure the economic growth of any country. Metals production is directly associated with heat starting from raw ore handling upto the finished products. The heat produced is radiated into the ambient environment and also to the persons handling the metals. This book will provide a great help to understand the relationship of heat stress and various blood parameters in the workers of iron and steel industry.
Varshney Rajeev Translational Genomics for Crop Breeding. Volume 1 - Biotic Stress Varshney Rajeev Translational Genomics for Crop Breeding. Volume 1 - Biotic Stress Новинка

Varshney Rajeev Translational Genomics for Crop Breeding. Volume 1 - Biotic Stress

13643.34 руб. Найти похожее
Genomic Applications for Crop Breeding: Biotic Stress is the first of two volumes looking at the latest advances in genomic applications to crop breeding. This volume focuses on genomic-assisted advances for improving economically important crops against biotic stressors, such as viruses, fungi, nematodes, and bacteria. Looking at key advances in crops such as rice, barley, wheat, and potato amongst others, Genomic Applications for Crop Breeding: Biotic Stress will be an essential reference for crop scientists, geneticists, breeders, industry personnel and advanced students in the field.
Morpho-Biochemical Responses of Wheat Lines to Seawater Salinity Morpho-Biochemical Responses of Wheat Lines to Seawater Salinity Новинка

Morpho-Biochemical Responses of Wheat Lines to Seawater Salinity

This work was conducted to evaluate the impact of seawater irrigation on growth, metabolism and ultrastructure of chloroplasts and oleosomes in flag leaf of wheat (Triticum aestivum L.), salt sensitive "Gemmieza-9" and salt resistant "Sids-1", cultivars. Among the cultivars, Sids-1 "salt tolerant" showed a better performance and produced more biomass under salt stress when compared with Gemmieza-9 "salt sensitive". Furthermore, it is clear from this work that the impact of seawater irrigation at 10% or 25% on both wheat cultivars particularly sensitive one had a negative effect on growth vigor of root and shoot, leaf area expansion, pigments content, membrane stability, relative water content, protein content, DNA, RNA as well as ultrastructure of chloroplasts and oleosomes of flag leaf during grain filling. On the other hand, seawater stress resulted in accumulation of inorganic ions, organic solutes, glycerol and saturated fatty acids which in turn involved with cell protection and osmotic adjustment. In addition salinity induced plant defense machinery with varying degrees in both wheat cultivars by enhancing the activity of antioxidant enzymes.
Impact of Soil Salinity and Phosphorus Fertility on Wheat Plant Impact of Soil Salinity and Phosphorus Fertility on Wheat Plant Новинка

Impact of Soil Salinity and Phosphorus Fertility on Wheat Plant

Optimum fertilization management is an important technique to alleviate the adverse effects of salinity stress on plants. An experiment was conducted to evaluate the ameliorative role of inorganic and organic P-sources on wheat grown under salt stress in three soil types deficient in available P. Wheat plants were grown on alluvial, sandy and calcareous soils under salinity levels of 4, 8 and 12 dS/m of saturated paste extract (ECe) and supplied with constant rate of superphosphate (SP), cattle manure (CM) and 1:1 mixture of SP and CM. The results revealed that plants grown on the sandy soil were more susceptible to the adverse effects of salinity compared with that planted on the alluvial one, especially at 0 P. However, plants grown on the calcareous soil were moderately affected. In addition, varying soil type caused significant differences in the aboveground biomass and uptake of N, K, P and Zn in shoots and grains, where maximum values were attained in the alluvial soil followed by calcareous soil. Grains and straw yields and contents of N, P and K in the shoot tissue, grains and straw decreased significantly with increasing ECe from low (4 dS/m) to high level (12 dS/m).
Collier J. L. Environmental Physiology of Livestock Collier J. L. Environmental Physiology of Livestock Новинка

Collier J. L. Environmental Physiology of Livestock

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Environmental stress is one of the most significant factors affecting livestock performance and health, and it is only expected to increase with effects of global warming. Environmental Physiology of Livestock brings together the latest research on environmental physiology, summarizing progress in the field and providing directions for future research. Recent developments in estimating heat stress loads are discussed, as well as key studies in metabolism, reproduction, and genetic expressions. Environmental Physiology of Livestock begins with a survey of current heat indexing tools, highlighting recent discoveries in animal physiology, changes in productivity levels, and new technologies available to better estimate stress response. Using this synopsis as a point of orientation, later chapters hone in on major effects of heat stress, including changing metabolic pathways and nutrient requirements, endocrine regulation of acclimation to environmental stress, and reduced reproductive performance. The text concludes with a thorough discussion of environmental effects on gene expressions, providing important insight for future breeding practices. Environmental Physiology of Livestock is a globally contributed volume and a key resource for animal science researchers, geneticists, and breeders.
Trehalose and Trehalose metabolizing enzymes in wheat Trehalose and Trehalose metabolizing enzymes in wheat Новинка

Trehalose and Trehalose metabolizing enzymes in wheat

Trehalose (?-D-glucopyranosyl-l,l- ? -D-glucopyranoside) is a non reducing disaccharide of glucose. In this study, three wheat cultivars (Triticum aestivum L.) Tosun, Bolal (stress tolerant) and Cakmak (stress sensitive) were analysed for the presence of trehalose. It was found that trehalose had accumulated under salt and drought stress conditions in all wheat cultivars. The highest trehalose accumulation was detected in roots of Bolal cultivar under drought stress condition. Furthermore, trehalose metabolizing enzymes; trehalose-6-phosphate synthase (TPS) and trehalase enzyme activities were measured. The most interesting results that we found that TPS activity sharply increased under stress conditions. The activity of TPS in roots under drought stress condition was the highest and reached to 3-4 times of its activity under control condition. The increase in the activity of TPS showed parallelism with trehalose accumulation under stress condition. Trehalase activity in Bolal cultivar decreased under both salt and drought stress conditions, however there was no significant change in trehalase activity of Cakmak variety.
Coat Colour Genes, Heat Stress & Helminthes infection among WAD Sheep Coat Colour Genes, Heat Stress & Helminthes infection among WAD Sheep Новинка

Coat Colour Genes, Heat Stress & Helminthes infection among WAD Sheep

Heat stress and helminth infestation are major constraints to profitable sheep farming in the tropics. H. contortus is a major deadly helminthes which causes great havoc to small ruminant animals in the tropical regions. This work determines the effect of coat colour on Heat stress physiological and haematological parameters among West African Dwarf Sheep. It also determines the response of the different coat colour type of WAD sheep to H. contortus challenge. The study was carried out at in a tropical region . West African Dwarf sheep with different coat colour types (black , brown with extensive white markings, brown mouflon, badger face and black with extensive white markings) were used for the experiment. Badgerface sheep can withstand heat stress while brown sheep can tolerate H. contortus more than other coat colour types.Breeding of black sheep and others with dark pigmentation should be done under intensive care against heat stress. Male sheep can withstand harsh/hot climatic condition better than females. The genetic superiority of brown coat colour should be taken into consideration when designing breeding programmes for genetic resistance against helminthes.
Cryotherapy. Precooling and Determinants of Performance Cryotherapy. Precooling and Determinants of Performance Новинка

Cryotherapy. Precooling and Determinants of Performance

Athletes consistently work to improve motor performance. We also know that the development of fatigue during exercise and the onset of exhaustion occur earlier in the heat than in cooler environments. Sport performance coaches and practitioners need to have a more comprehensive understanding of the immediate and delayed effects of cryotherapy on functional performance. Herewith, precooling is a popular strategy used to combat the debilitating effects of heat-stress-induced fatigue and extend the period in which an individual can tolerate a heat-gaining environment. Sport Scientists recognize that pre-cooling can increase performance capacity in diverse temperatures and exercise circumstances. This book adresses a range of strategies designed to either reduce the heat load or enable the participant to cope with the debilitating effects of heat stress.
Physiological Mechanisms of Heat Stress Tolerance in Turfgrass Physiological Mechanisms of Heat Stress Tolerance in Turfgrass Новинка

Physiological Mechanisms of Heat Stress Tolerance in Turfgrass

Improving tolerance to heat stress is a major challenge in many crops, especially C3 crops, given the threat of recent global warming. While significant achievements have been made on understanding the molecular and physiological mechanisms to short–term exposure to high temperature, the physiological mechanisms of summer tolerance in fields, which are characterized by prolonged exposure to high temperature stress, are not still well understood. In this study, six experiments were conducted to clarify the physiological mechanisms of tolerance to high temperature stress by comparing between genotypes, populations and different species including C3 and C4 photosynthetic types. Overall, although the complexity of heat tolerance was revealed by the involvement of various mechanisms such as suppression of ROS, scavenging of toxic ROS, and leaf functions, this study definitively showed that the oxidative stress resulting from the excessive production of ROS is the main cause of damages under heat stress.
Aluminium (Al) Tolerance Variability in seven Wheat Cultivars Aluminium (Al) Tolerance Variability in seven Wheat Cultivars Новинка

Aluminium (Al) Tolerance Variability in seven Wheat Cultivars

A petri dish and hydrophonic culture experiment was conducted to investigate the effect of aluminum on seed germination, morphological characters and growth of wheat seedlings. The experiment comprised two levels of aluminum concentrations viz., 0 (control) and 250 ppm and seven wheat varieties viz., B1064, Sonalika, B20, B1059, Kanchan, B21 and B19. Application of 250 ppm aluminum had a profound influence on hypocotyl and epicotyl length, germination percentages, root and shoot length and fresh and dry mass production in wheat. Results indicated that germination percentage, hypocotyl and epicotyl length, root and shoot length, leaf length, fresh and dry mass plant-1 were greater in control than that of aluminum treatment indicating wheat seedlings are susceptible to aluminum stress. However, among the studie varieties, the reduction of dry mass due to aluminum was minimum in Sonalika (3.31% reduction over control) followed by B1059(6.19% reduction over control) indicating that Sonalika was more tolerant to aluminum toxicity than the other varieties while the varieties, B20 and B21 were more susceptible to aluminum stress.
Climate Variability and Wheat Productivity Climate Variability and Wheat Productivity Новинка

Climate Variability and Wheat Productivity

Wheat is the most widely grown crop in the world and is sown over a wide range of sowing dates in various cropping systems. Sowing time as a crop management tool played a significant contribution towards the wheat grain yield, reflecting the importance of the selection of optimum sowing time. The genotypes also behaved variably. This book, elucidated some important parameters that can be used as yield predictors of the crop. To further clarify, a validated APSIM model was used for understanding and analyzing optimum sowing time, genotype and climatic behavior. The simulation results explained the vulnerability of crop and a relationship of climate and wheat yield variability. The book, therefore, depicts the successful use of the simulation approach to understand crop bio-dynamism, climate and crop management simultaneously to explore the potential yield of wheat in a given environment.
Effect Of Planting Date And Nitrogenous Fertilization On Wheat Effect Of Planting Date And Nitrogenous Fertilization On Wheat Новинка

Effect Of Planting Date And Nitrogenous Fertilization On Wheat

Yield response of three wheat (Triticum aestivum L.) cultivars (Gemmieza 7, Sakha 93 and Giza 168) to various sowing times was studied during the two 2006/2007 and 2007/2008 seasons. Three sowing dates were 5th November, 20th November, and 5th December. A split-split plot design was used. Wheat plants were sown on 20th November gave the highest values of the most of characteristics such as plant height, leaf area index, crop growth rate, spike length, number of spikes m-2, 1000- kernel weight, grain yield (Mg ha-1), harvest index and protein grains content in both seasons. Increasing N- fertilization rates up to 288 kg N ha-1 led to increased growth parameters, yield and yield components. 288 kg N ha-1 recorded the highest values of the most parameters in both seasons. Gemmieza 7 had highest values for most of growth characters, yield and its components compared with the other cultivars (Sakha 93and Giza 168). Sowing on 20 Nov. with 288 kg N ha-1 had significantly increased on most studied characteristics. There was no fungal diseases infection as affected by different sowing dates and nitrogen fertilization level of the three wheat cultivars during two sowing seasons.
Viscous Fluid With Heat Generation And Heat Absorption Viscous Fluid With Heat Generation And Heat Absorption Новинка

Viscous Fluid With Heat Generation And Heat Absorption

The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal notion of "thickness". For example, honey has a higher viscosity than water.Viscosity is due to friction between neighboring parcels of the fluid that are moving at different velocities. When fluid is forced through a tube, the fluid generally moves faster near the axis and very slowly near the walls, therefore some stress (such as a pressure difference between the two ends of the tube) is needed to overcome the friction between layers and keep the fluid moving. For the same velocity pattern, the stress required is proportional to the fluid's viscosity. A liquid's viscosity depends on the size and shape of its particles and the attractions between the particles.
Effect of foliar applied chemicals on drought tolerance in wheat Effect of foliar applied chemicals on drought tolerance in wheat Новинка

Effect of foliar applied chemicals on drought tolerance in wheat

Wheat (Triticum aestivum L.) is the main food grain of Pakistan and is the staple diet of the country’s people; it has a central position in agricultural policies formulation. The average yield of wheat in Pakistan is less due to less water availability at farm gate and low rainfall during the growing period. Drought affects growth, phenology, water and nutrient relations, photosynthesis, assimilate partitioning and respiration in plants ultimately decreases yield. Exogenous application of osmoprotectants, growth promoters and antioxidant compounds is considered as quick-fix solutions to cope with water stress. So the study was planned to determine the effect of exogenously applied chemicals on growth, yield and physiological traits of wheat grown under drought conditions and to find out the chemical, most effective in improving drought tolerance of wheat. This book can give an overall idea about wheat situation in Pakistan, drought & its effects and enhancing drought tolerance in wheat by foliar application of ascorbic acid, salicylic acid, calcium chloride and glycine betaine.
Exploring genetic diversity of wheat for stripe rust Resistance Exploring genetic diversity of wheat for stripe rust Resistance Новинка

Exploring genetic diversity of wheat for stripe rust Resistance

Virulence presence for stripe rust is a lingering threat to national wheat production that also extends across all geographical boundaries. The dynamics of this pathogen’s character imposes a major stress that can jeopardize wheat crops productivity. Thus breeders continue their search for new genes or assemble gene combinations that can give a genetically durable varietal performance system. Search for new gene sources is spread across the three wheat gene pools and of these a focus on the primary gene pool holds priority. in the present study germplasm from various sources was screened for stripe rust resistance.
Management of Stripe rust of Wheat Management of Stripe rust of Wheat Новинка

Management of Stripe rust of Wheat

This includes comprehensive information on the different aspects of stripe rust of wheat. All the major information like survey, management and epidemiology aspects including detailed work plan is documented. The results act as a major reference to initiate the work on different rusts of wheat. This would also update the practical knowledge of the youngsters who wish to work on wheat rust. The management work are detailed in such a way that it would be of great help for the research workers, students.
Genetic characterization of wheat under water stress Genetic characterization of wheat under water stress Новинка

Genetic characterization of wheat under water stress

Water stress is one of the most significant factors among abiotic stresses that limit performance growth and productivity of crops. Among local hexaploid wheat, Rawal-87 performed well and also indicated lower SSI, TOL and MP values and higher value of YSI under all water stresses and can be considered as a tolerant variety. Bread wheat advanced lines CIM-47 and CIM-50 were the most tolerant genotypes against water stress and also showed lowest SSI,TOL and MP with high YSI values. It may therefore, be concluded that these genotypes have the potential of stress tolerance. Considering the biochemical parameters, minimum MDA contents with higher POD activity has been found in Rawal-87, Chakwal-86 and Pak-81 when stress was imposed at different irrigation levels. CIM-47, CIM-49 and NR-234 showed minimum levels of MDA with increased POD activity under different stress conditions and are considered as tolerant genotypes. Higher sugar contents have been noticed in genotypes CIM-47, CIM-51, NR-234, NR-241 and NR-264. These results led to conclude that higher reducing sugar content in tolerant genotype could be use as a distinguishing parameter.
The Crowstarver The Crowstarver Новинка

The Crowstarver

Crowstarving was the ideal job for Spider - he was on his own - yet never alone, for all around him were animals of one sort or another. Discovered as a foundling in a lambing pen, Spider Sparrow grows up surrounded by animals. From sheep and horses to wild otters and foxes, Spider loves them all, even the crows must scare away the newly sown wheat. Amazingly, every animal who meets Spider implicitly trusts the young boy. This magical rapport is Spider's unique gift, but nothing else in his tough life is so easy.
Development of Database on Codon Preference of Wheat Development of Database on Codon Preference of Wheat Новинка

Development of Database on Codon Preference of Wheat

Wheat (Triticum Aestivum) is a grass, originally from the Fertile Crescent region of the Near East, but now cultivated worldwide. In 2007 world production of wheat was 607 million tons making it most produced cereal after maize (784 million tons) and rice (651 million tons).To improve the yield of wheat production different projects are in process. We have developed database on codon preference of selected wheat proteins. Most preferably Codon Preference and Codon biasness refers to same phenomena describing about the usage of synonymous codons. Wheat has a large hexaploid genome that has been sequenced. We have particularly taken only those genes whose nucleotide and amino acid sequence is known in databases. The fasta format Sequences of heat shock proteins and protein kinase were taken from UniProt and codon preferences were find. Then different tools are used to make the tables and Pi charts of codon preference of wheat.
EFFECT OF DROUGHT STRESS ON GOMPHERENA GLOBOSA EFFECT OF DROUGHT STRESS ON GOMPHERENA GLOBOSA Новинка

EFFECT OF DROUGHT STRESS ON GOMPHERENA GLOBOSA

Water is a major limiting factor affecting plant growth, development and yield mainly in arid and semi-arid region where plants are often exposed to periods of water deficit stress which is also known as drought stress (Foyer et al., 1994). Drought and heat stress can cause oxidative stress through the production of reactive oxygen species such as super oxide radicals and hydrogen peroxide. Also the drought, salinity, extreme temperatures and oxidative stress are often interconnected and may induce similar cellular damage. Plant growth and productivity is adversely affected by nature''s wrath in the form of various abiotic and biotic stress factors. (Serrano et al., 1999). The effect of water stress in contrast to roots; leaf growth is severely inhibited at the onset of drought. Leaf cell expansion during water stress is regulated by changes in pH and inhibition of growth is mediated by a rapid decrease in extensibility of expanding leaf cell walls.The study was conducted to determine the effect of drought stress on the growth and development of Gampherena globosa. The data recorded for different growth parameters of the plant.
Increasing Crop Production Via K Spray, The Cheapest Way To Prosperity Increasing Crop Production Via K Spray, The Cheapest Way To Prosperity Новинка

Increasing Crop Production Via K Spray, The Cheapest Way To Prosperity

Soil salinity is a huge problem for crop production as it destroys the normal growth and development of crop plants, resulting in significant reduction in yield. Wheat is among the most important cereals and is the staple food of many countries throughout the world. However, its production is quite low in many countries due to high levels of soil salinity. In addition to these, low yield of wheat also seems to be directly linked with low use of fertilizers. Wheat production can be increased by the proper use of fertilizers. Among different fertilizers, the use of potash fertilizers is being emphasized as they have good net effect on the production of crops. Commonly, there are two compounds which can be used as potash fertilizers, i.e., Sulphate of Potash (SOP) and Muriate of Potash (MOP). Not much attention has been paid till date to find out the effect of foliar application of SOP or MOP on growth of wheat plants under saline conditions. So the aim of the present work was to study the importance of foliar application of SOP and MOP on the morphological, biochemical and yield attributes of wheat plants grown under salt stress
Dynamics of nitrogen responses to wheat under moisture stress Dynamics of nitrogen responses to wheat under moisture stress Новинка

Dynamics of nitrogen responses to wheat under moisture stress

Moisture stress and high temperature characterizing markedly forced maturity and altered the agronomic and physiological responses of the wheat crop. Nitrogen fertilizer rate exhibited notable effects on the yield, crop nitrogen and flour quality parameters relative to the other factors. The differences between the test varieties for yield and quality parameters were relatively small implying the predominance of the environment in determining the associated variances in contrast to the genetic factors. In general it is possible to deduce N fertilizer rate exhibited greater effects than variety or timing of N application; N rate negatively affected the grain yield, but markedly enhanced the flour quality parameters. Such a yield penalty due to increasing N fertilizer rate must be compensated by improved soil and crop management practices.
Effects of Selected Process Variables on Properties of Cartridge Brass Effects of Selected Process Variables on Properties of Cartridge Brass Новинка

Effects of Selected Process Variables on Properties of Cartridge Brass

This book covers the report of an investigation into the enhancement of the tensile properties of sand cast cartridge (70/30) brass by the addition of manganese (Mn) and silicon (Si) as alloying elements and low temperature annealing heat treatment. Microstructural characterization and tensile tests were performed on cast, machined and heat treated specimens. It was concluded that cartridge brasses subjected to alloying and annealing treatments had improved tensile properties at stress relieve annealing temperatures.
Studies On Physiological Traits In Wheat Under Water Stress condition Studies On Physiological Traits In Wheat Under Water Stress condition Новинка

Studies On Physiological Traits In Wheat Under Water Stress condition

Several morpho physiological traits are traditionally used as screening criteria for drought tolerance such as relative water content (RWC), stomatal index, water use efficiency (WUE) etc. Crop WUE can be improved by optimizing crop transpiration. Several workers have proposed carbon isotope discrimination (CID), ash content and canopy temperature depression (CTD) as selection criteria for transpiration efficiency (TE), which may serve as the surrogate measures for improvement in grain yield.To identify suitable physiological traits useful in wheat breeding under water stress environment is the major thrust area of present investigation. For this, Durum and aestivum genotypes were selected from the breeding material of ARI, Pune (MS, India).Experimental trials on Triticum durum were conducted under three different water regimes viz. residual soil moisture stress (RSMS), post anthesis water stress (PAWS) as limited irrigation (LI) and well watered (WW) conditions.Data were collected for agronomical and physiological characters. Soil water balance model ‘BUDGET’ (Raes et.al. 2006) has been used for deriving WUE using meteorological, rainfall and irrigation data of (2004-05)and(2006)
Enhancing soy protein functionality in soy-wheat bread making Enhancing soy protein functionality in soy-wheat bread making Новинка

Enhancing soy protein functionality in soy-wheat bread making

In this book, the physical and biochemical properties (rheological, thermal and relative molecular protein size distribution) of soy and wheat proteins in soy and wheat composite dough are evaluated. The process of physical modification of soy flour (moist heat treatment) was successful in modulating the physical and chemical properties of soy-wheat dough. The SE-HPLC technique demonstrated that the improved contribution to dough properties of physical modification of soy proteins was due to changes in the molecular size distribution of the soy proteins, which results indicated that a soy-wheat composite dough made from this flour forms a stronger dough with potentially better baking qualities. This process of physical modification of soy flour (optimized moist heat treatment) is considered to be of practical significance to developing countries. Thermal properties (DSC water evaporation endotherms) of soy-wheat dough made from the modified soy flour were used to develop a mathematical model for the formulation of soy-wheat bread. Soy-wheat bread formulations using at least 30% physically modified soy flour, with acceptable organoleptic properties and improved nutritional value.
Heat stress alleviation in laying hens using antioxidants Heat stress alleviation in laying hens using antioxidants Новинка

Heat stress alleviation in laying hens using antioxidants

In this book you will read every thing about the harmful effects of heat stress on laying hens' health and production from different aspects and how to cope with these effects. The present study was carried out at the Laying Hens Research Farm, Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt, during the period from July to September 2008. A total number of 243 forty two weeks of age, Bovans laying hens were randomly distributed into twenty seven treatment groups to investigate the effect of dietary vitamin A (0, 8000 and 16000 IU/ kg diet), vitamin E (0, 250 and 500 mg/ kg diet) and selenium (0, 0.25 and 0.50 mg/ kg diet) on the productive performance and some physiological, immunological and hematological traits of Bovans laying hens reared under Egyptian summer conditions.
Freedom from Stress Freedom from Stress Новинка

Freedom from Stress

Stress is heat of unregulated mind. It is a gap between internal psychological state and external environment. Stress is a major global problem at individual level leading to disastrous consequences in the form of life-style diseases, depression and even suicides in extreme cases. It exists at family and social level also leading to conflicts and mental heat. In organizations managing stress is a big challenge for HR Managers because it has adverse effect on productivity and organizational effectiveness. Western world deals with stress through medication but India offers several physical, psychological and philosophical remedies for this problem. The present book offers a philosophical solution to the problem of stress from Adveta philosophy contained in Ashtavakra Gita, an integral part of Mahabharata epic which dates back 3500 B.C. Abstract philosophy has been presented in a simple easy to understand and easy to practice by anyone who seeks a sustainable solution to grave problem of stress in modern life full of challenges. Rest in your pure self and enjoy bliss. Be an innocent child once again to live a life full of happiness.
Flexible MEMS Thermal Sensors for Intravascular Flow Monitoring Flexible MEMS Thermal Sensors for Intravascular Flow Monitoring Новинка

Flexible MEMS Thermal Sensors for Intravascular Flow Monitoring

This book investigated two different thermal sensors for intravascular flow monitoring based on convective heat transfer principle. Both sensors were fabricated by MEMS (micro-electro-mechanical systems) and semiconductor processing. The first thermal flow sensor is one-dimensional (1-D) flexible shear stress sensor. Utilizing the state-of-art MEMS technology, its primary advantages were structural flexibility, bio-compatibility and small size. Then, a novel 3-D thermal flow sensor was developed based on previous flexible 1-D sensors. With computational fluid dynamics (CFD) analysis, 3-D sensor can potentially achieve a better measurement of shear stress distribution in the presence of time-varying component of blood flow and realize more accurate assessment of intravascular convective heat transfer.

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Environmental stress is one of the most significant factors affecting livestock performance and health, and it is only expected to increase with effects of global warming. Environmental Physiology of Livestock brings together the latest research on environmental physiology, summarizing progress in the field and providing directions for future research. Recent developments in estimating heat stress loads are discussed, as well as key studies in metabolism, reproduction, and genetic expressions. Environmental Physiology of Livestock begins with a survey of current heat indexing tools, highlighting recent discoveries in animal physiology, changes in productivity levels, and new technologies available to better estimate stress response. Using this synopsis as a point of orientation, later chapters hone in on major effects of heat stress, including changing metabolic pathways and nutrient requirements, endocrine regulation of acclimation to environmental stress, and reduced reproductive performance. The text concludes with a thorough discussion of environmental effects on gene expressions, providing important insight for future breeding practices. Environmental Physiology of Livestock is a globally contributed volume and a key resource for animal science researchers, geneticists, and breeders.
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