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Soybean Seed Yield Viability And Vigor And Chemical Composition Resulting From Drought And High Temperature Stress During Seed Fill
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Book Synopsis Soybean Seed Yield, Viability and Vigor, and Chemical Composition Resulting from Drought and High Temperature Stress During Seed Fill by : David L. Dornbos
Download or read book Soybean Seed Yield, Viability and Vigor, and Chemical Composition Resulting from Drought and High Temperature Stress During Seed Fill written by David L. Dornbos and published by . This book was released on 1988 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soybean Yield, Yield Components, Seed Quality, Dehydrin-like Proteins, Soluble Sugars, and Mineral Nutrients in Response to Drought Stress Imposed Prior to Severe Stress by : Nezar Husein Samarah
Download or read book Soybean Yield, Yield Components, Seed Quality, Dehydrin-like Proteins, Soluble Sugars, and Mineral Nutrients in Response to Drought Stress Imposed Prior to Severe Stress written by Nezar Husein Samarah and published by . This book was released on 2000 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In winter, all drought stress treatments induced dehydin-like proteins at mid-seed development and reduced the level of soluble sugars in the mature seeds. The reduction in soluble sugars in seeds from drought stressed plants coincided with the reduction in AA-germination. In winter and field experiments, drought stress treatments increased the concentration of P, K, Ca, Mo, Mn, and Cu in seed similar in size and weight to seeds from well-watered plants; but, the concentrations varied between the two experiments. Drought-stress treatments reduced seed size in the winter experiment, but not in field experiment. Medium seeds had lower nutrient content than large seeds. In conclusion, all drought stress treatments reduced yield, yield components, increased production of small and medium seeds, and induced expression of dehydrins at mid-seed development. Well-watered and gradual stress treatment improved seed vigor (AA-germination) of large seeds over that observed in the SS treatment and this reduction in seed vigor was coincided with the reduction in soluble sugars.
Book Synopsis Soybean Breeding by : Felipe Lopes da Silva
Download or read book Soybean Breeding written by Felipe Lopes da Silva and published by Springer. This book was released on 2017-06-10 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written by soybean experts to cluster in a single publication the most relevant and modern topics in soybean breeding. It is geared mainly to students and soybean breeders around the world. It is unique since it presents the challenges and opportunities faced by soybean breeders outside the temperate world.
Book Synopsis Transactions of the ASAE. by : American Society of Agricultural Engineers
Download or read book Transactions of the ASAE. written by American Society of Agricultural Engineers and published by . This book was released on 1991 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soybean Seed Composition by : Moulay Abdelmajid Kassem
Download or read book Soybean Seed Composition written by Moulay Abdelmajid Kassem and published by Springer Nature. This book was released on 2022-01-10 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean Seed Composition covers three decades of advances in quantitative trait loci (QTL) mapping of seed protein, oil, fatty acids, amino acids, sugars, mineral nutrients, isoflavones, lunasin, and other beneficial compounds. It opens with coverage of seed protein, oil, fatty acids, and amino acids and the effects that genetic and environmental factors have on them. Detailed discussion of QTL that control seed protein, oil, and fatty acids follows, and the book also covers seed amino acids, macronutrients, micronutrients, sugars, and other compounds that are key to selection for crop improvement. The book also provides an overview of two decades of QTL mapping of mineral deficiencies in soybean, which sheds light on the importance of a balanced mineral nutrition in soybean and other crops, elucidates salt stress tolerance QTL mapping, which is another challenge that faces soybean and other crop production worldwide. The importance of soybean seed isoflavones from their biosynthesis and quantification methods to locations and variations in seeds, roots, and leaves, to their QTL mapping is discussed, as well as providing key information on lunasin, a bioactive anticancer peptide in soybean seeds that will help farmers and breeders to develop soybean cultivars with improved seed isoflavones and lunasin content. The book will be of interest to graduate students, academics, and researchers in the fields of genetic and QTL mapping of important agronomic traits in soybean and other crops.
Book Synopsis Soil Moisture Stress Effects on Soybean Vegetative, Physiological, and Reproductive Growth and Post-harvest Seed Physiology, Quality, and Chemical Composition by : Chathurika Wijewardana
Download or read book Soil Moisture Stress Effects on Soybean Vegetative, Physiological, and Reproductive Growth and Post-harvest Seed Physiology, Quality, and Chemical Composition written by Chathurika Wijewardana and published by . This book was released on 2018 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the increasing scarcity of water resources, soil moisture stress is the single most threat to global soybean production causing extensive yield losses. The objectives of this study were to investigate soil moisture stress effects on all aspects of soybean growth and development processes and to develop functional algorithms that could be used for field management decisions and in soybean crop modeling. To fulfill these objectives, six experiments were conducted; one in vitro osmotic stress study on seed germination, four studies by imposing five soil moisture treatments, 100, 80, 60, 40, and 20% of daily evapotranspiration of the control at different growth stages using sunlit plant growth chambers, and one transgenerational study on seed germination at different osmotic levels and offspring growth at three irrigation treatments (100, 66, and 33% based on field capacity) for plants grown at different soil moisture levels. Two cultivars from maturity group V, Asgrow AG5332 and Progeny P5333RY, with different growth habits were used in all these studies. Midday leaf water potential, plant height, mainstem nodes, gas-exchange traits, canopy reflectance, and several yield components including pod weight, seed yield, and seed quality were measured. Soil moisture stress decreased biomass, net photosynthesis, yield, individual seed weight, maximum seed germination, protein, fatty acids, sucrose, N, and P and increased oil, stachyose, Fe, Mg, Zn, Cu, and B contents. Overall, Asgrow AG5332 was more tolerant to drought stress than Progeny P5333RY. Soil moisture stress induced changes in seed quality that were correlated with seed germination and seedling vigor in the F1 generation. These data can be used to build a model-based decision support system capable of predicting yield under field conditions.
Book Synopsis Proceedings of the ... Annual Seed Technology Conference by :
Download or read book Proceedings of the ... Annual Seed Technology Conference written by and published by . This book was released on 1989 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Root Temperature During the Grain Fill Stage on Nutrient Uptake and Reproductive Development in Soybeans by : Brooks Edward Engelhardt
Download or read book Effects of Root Temperature During the Grain Fill Stage on Nutrient Uptake and Reproductive Development in Soybeans written by Brooks Edward Engelhardt and published by . This book was released on 2001 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain N, P, K, Ca, and Mg concentration from fertilized plants increased by an estimated 15, 36, 19, 62, and 5%, respectively. Additionally grain Mn and B from the same plants increased by an estimated 23 and 41%, respectively. However, plants fertilized during seed fill had an estimated 18% reduction in grain Fe concentration, and no change in grain Cu concentration. Fertilizing maternal plants during seed fill resulted in a significant increase of progeny germination rates, but had no influence on seedling vigor. Average germination rates were 67 and 61% from fertilized and non-fertilized plants, respectively. We found no evidence that root temperatures of 18 to 36°C during grain fill influenced soybean seed formation and development, nutrient concentration, germination and vigor. However, maternal plant nutrient stress during this stage can affect yield determinants, dry weights, seed nutrient concentration and germination rates.
Book Synopsis Viability and Vigour of Soybean Seed (Glycine Max (L.) Merril) by : Vadlya T. Tame ()
Download or read book Viability and Vigour of Soybean Seed (Glycine Max (L.) Merril) written by Vadlya T. Tame () and published by LAP Lambert Academic Publishing. This book was released on 2011-07 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean seed viability and vigour are some of the major constraints in soybean production because considerable amount become downgraded due to improper storage. The germination potential is very short lived in soybean as compared to other oil seed crops and is often reduced prior to planting time. This loss of germination is much more acute under tropical conditions. Seed deterioration is one of the basic reasons for low productivity in soybean. Based on conditions under which this work was conducted, it can be concluded that soybean seed undergo deterioration with the rate dependent on storage temperature and crop species. Storability among storage materials varied with bottle storage giving the better storage. Also, there were variations among soybean varieties on viability and vigour as well as among the environmental conditions. However, cold storage gave the best in preserving viability and vigour of soybean seed. The result of this work will give the farmers researchers and seed producers a better option of material and environmental condition to be used for storing seeds especially in the tropics, because seeds are frequently stored from one year to another.
Book Synopsis Crop Stress and its Management: Perspectives and Strategies by : B. Venkateswarlu
Download or read book Crop Stress and its Management: Perspectives and Strategies written by B. Venkateswarlu and published by Springer Science & Business Media. This book was released on 2011-11-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crops experience an assortment of environmental stresses which include abiotic viz., drought, water logging, salinity, extremes of temperature, high variability in radiation, subtle but perceptible changes in atmospheric gases and biotic viz., insects, birds, other pests, weeds, pathogens (viruses and other microbes). The ability to tolerate or adapt and overwinter by effectively countering these stresses is a very multifaceted phenomenon. In addition, the inability to do so which renders the crops susceptible is again the result of various exogenous and endogenous interactions in the ecosystem. Both biotic and abiotic stresses occur at various stages of plant development and frequently more than one stress concurrently affects the crop. Stresses result in both universal and definite effects on plant growth and development. One of the imposing tasks for the crop researchers globally is to distinguish and to diminish effects of these stress factors on the performance of crop plants, especially with respect to yield and quality of harvested products. This is of special significance in view of the impending climate change, with complex consequences for economically profitable and ecologically and environmentally sound global agriculture. The challenge at the hands of the crop scientist in such a scenario is to promote a competitive and multifunctional agriculture, leading to the production of highly nourishing, healthy and secure food and animal feed as well as raw materials for a wide variety of industrial applications. In order to successfully meet this challenge researchers have to understand the various aspects of these stresses in view of the current development from molecules to ecosystems. The book will focus on broad research areas in relation to these stresses which are in the forefront in contemporary crop stress research.
Book Synopsis Egyptian Journal of Agricultural Research by :
Download or read book Egyptian Journal of Agricultural Research written by and published by . This book was released on 2000 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1989 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological and Yield Responses of Soybean Cultivars to Heat and Drought Stresses by : Sadikshya Poudel
Download or read book Physiological and Yield Responses of Soybean Cultivars to Heat and Drought Stresses written by Sadikshya Poudel and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max L.) is an important legume crop often exposed to heat and drought stresses during reproductive and early-seed setting stages, resulting in lower yields and seed quality. Ten soybean cultivars were phenotyped for individual (drought or heat) and combined stress tolerance. Under drought, reduced stomatal conductance and increased canopy temperature significantly reduced seed number (46%) and weight (35%). Heat stress alone reduced seed number (19%) and weight (23%) compared to control. Moreover, a degree increase in daytime temperature above 32 ℗ʻC during the reproductive stage reduced seed weight by 4% and 7% under well-watered and drought conditions, respectively. Seed protein was increased under drought, while it declined under heat and combined stress compared to control. In contrast, oil content showed the opposite trend. Weak correlations between phenotypic traits under individual and combined stress suggest that selecting cultivars for individual stress tolerance may not work under combined stress conditions.
Book Synopsis Yield and Chemical Composition of Indeterminate Variety Soybean Seed as Affected by Depodding During Rapid Pod Fill Stages by : David Banks Quarles
Download or read book Yield and Chemical Composition of Indeterminate Variety Soybean Seed as Affected by Depodding During Rapid Pod Fill Stages written by David Banks Quarles and published by . This book was released on 1981 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Delayed Harvest on Soybean Yield, Seed Quality, Viability, and Vigor by : Didhiti Bhoumik
Download or read book Effects of Delayed Harvest on Soybean Yield, Seed Quality, Viability, and Vigor written by Didhiti Bhoumik and published by . This book was released on 1999 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Throughput Phenotypic Evaluation of Drought-related Traits in Soybean by : Hua Bai
Download or read book High Throughput Phenotypic Evaluation of Drought-related Traits in Soybean written by Hua Bai and published by . This book was released on 2016 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought limits crop growth and yield in soybean. Rapid and effective methods of screening large numbers of soybean lines for drought tolerance are urgently needed. Two experiments were conducted to evaluate the effects of drought in soybean during reproductive stages. In the first experiment five genotypes from maturity groups 2 through 5 were tested under well-irrigated and drought conditions. Beginning at R5, leaf samples were taken for nitrogen concentration analysis. Pictures were taken across the top of each plot to determine the intensity of greenness using the Dark Green Color Index (DGCI). Aerial photographs were also taken to determine aerial DGCI values. Leaf nitrogen concentration decreased as plants approached maturity and was closely related to ground DGCI. Additionally, ground DGCI and aerial DGCI values followed similar trends. The aerial DGCI measurements had advantages over ground DGCI measurements in that it allowed discernment between both water treatments. This opens up the possibility of using aerial DGCI to screen genotypes that senesce more slowly under drought. In the second experiment, the effects of drought in soybean were evaluated by aerial infrared image analysis, carbon isotope discrimination (Delta 13C) and oxygen isotope composition (delta 18O). Five fast-and five slow-wilting genotypes derived from a cross of Benning × PI416937 were evaluated under three water treatments that included a full and two deficit-irrigation treatments of increasing severity (deficit 1, and 2). After canopy closure, aerial infrared images were taken to determine the relative canopy temperature. Soybean leaves sampled at late R5 and seed at harvest were collected to measure Delta 13C (leaf and seed) and delta 18O (seed) as surrogate measurements for water use efficiency (WUE) and transpiration, respectively. As water availability decreased, the Delta 13C values from leaf and seed generally decreased (i.e., higher WUE). In contrast, the delta 18O values and relative canopy temperature generally increased with increasing drought stress. Moreover, slow-wilting genotypes generally had lower Delta 13C, delta 18O and canopy temperature than fast-wilting genotypes. However, delta 18O values were not consistent over years. The results from these two experiments indicate that the determination of DGCI, Delta 13C, and canopy temperature were promising tools for rapid characterization of drought-related traits in soybean.
Download or read book Soybeans written by Bruce Fletcher and published by Nova Science Publishers. This book was released on 2016-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides current research on the cultivation, nutritional properties and effects on health of soybeans. Chapter One examines the antioxidant defense system in foliar and seed extracts of seven soybean cultivars. Chapter Two introduces phytic acid, an anti-nutritional factor in soybean seeds, soybean mea and phytic acid in animal production, low phytic acid (LPA) soybeans, LPA soybeans in meal production, and the potential problems with LPA soybean varieties. Chapter Three explains the mechanisms that regulate the triggered responses produced by different insect pests on soybean organs. Chapter Four reviews possible risks of food chain contamination and the possibility of crop loss from soybeans being exposed to arsenic. Chapter Five focuses on the behavior of soybean plants inoculated with the mycorrhisal fungus Rhizophagus intraradices, subjected to i) a sudden and severe water stress; ii) increasing levels of arsenic (As) in soil, and iii) a biotic stress such as the fungal disease charcoal rot. Chapter Six evaluates the deoxynivalenol and zearalenone toxin transmission caused by several F. graminearu isolates, and their effect on seed viability and flour quality of soybean and wheat. Chapter Seven discusses the changes in the form of growing soybeans after the emergence of transgenic soybeans in Brazil, seeking to discuss their advantages and disadvantages in relation to environmental, social and economic areas. Chapter Eight focuses on the ecology, diversity and pathogenicity of the Fusarium graminearum species complex in soybean agroecosystem in Argentina. Chapter Nine describes sustainable chemical control of LSD, FLS and ASR, framed within a program of integrated disease management.
