Download or read book Effect of Water Stress on Yield Vegetative Growth and Seed Growth Characteristics in Soybean Glycine Max L Merr written by Loel W. Meckel and published by . This book was released on 1982 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Water Stress Timing in the Field on Growth Yield and Water Use Efficiency of Soybeans Glycine Max L of Varying Growth Habit written by Mohammad Reza Neyshabouri and published by . This book was released on 1982 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Stress Effects on Physiological Processes and Yield of Soybeans written by Mahmoud Fadl El Mula Ahmed and published by . This book was released on 1983 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybeans [Glycine max (L.) Merr.] cv. Bragg were grown in field lysimeters for the study of water stress effects on certain physiological characteristics during different growth periods. A second objective was to study changes in plant water relations of well-irrigated soybeans during the growing season. Mid-day measurements were taken for soil water potential, leaf water potential components, stomatal diffusive resistence, transpiration, and leaf temperature. In well-irrigated plants, leaf osmotic potential began to decline with the onset of flowering, causing a considerable decrease in the leaf water potential. Mid-day turgor potential maintained hight values (5 to 8 bars) throughout the growing season. Diffusive resistence, transpiration rates, and leaf-to-air temperature differential (leaf temperature minus air temperature) were also constant util after R[indice]5, when diffusive resistance began to increase, transpiration rates decreased and temperature differential increased. This was related to plant aging as the crop approached the late reproductive growth stages. As estomatal diffusive resistance increased, transpiration cooling was less resulting in increased temperature differentials. During the drying cycles, leaf water potential componentes of the stressed plants were, in most cases, lower than teh control plants. Transpiration rates and stomatal conductance were also lower in the stressed plants while leaf-to-air temperature differential was greater. A high correlation was observed between osmotic potential and leaf water potential during drying cycles and was most likely associated with dehydration effect which resulted in increased concentrations of the osmotic components. However, osmotic potential at full turgor (leaf water potential equal to zero), showed progressive decreases during the season, giving values of -9.4, -10.9, -11.6 and -15.1 bars at V[indice]5, R[indice]1, R[indice]5 and R[indice]6 stages, respectively. This reflects changes in osmotic potential of soybeans as they grow from vegetative to reproductive phases. The slope of [phi][indice][pi] versus [phi][indice]L also declined from 0.437 at V[indice]5 to 0.233 at R[indice]6, suggesting reduced plasticity during late reproductive stages. Moisture strees during R[indice]6 resulted in significant diferences in harvest index, 100-seed weigth, percent empty pods, and shelling percentage as compared to the well-watered control. No significant differences in seed yield were observed; however, the data suggests yield reductions of 12%, 13% and 14% due to water withholding during V[indice]5, V[indice]5 plus R[indice]5, and R[indice]6 growth periods, respectively.

Download or read book Yield and Development of Soybeans Glycine Max L as Affected by Irrigation with Municipal Wastewater and Well Water written by Michael J. Cordonnier and published by . This book was released on 1981 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Water Stress on Dry Matter Accumulation and Yield of Soybean written by B. P. Singh and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Stress Morphological and Anatomical Changes in Soybean Glycine Max L Plants written by Phetole Mangena and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water stress is one of the most important physiological stress factors that adversely affect soybeans in many critical aspects of their growth and metabolism. Soybean's growth, development and productivity are severely diminished, when soil or cell water potential becomes inadequate to sustain metabolic functioning. However, little has been done to gather comprehensive information regarding the specific changes that occur in water-stressed plants at the anatomical and morphological level. In this study, deviations in root growth, shoot growth, stomatal conductance, yield components and anatomical features are reported. Treatments with two levels of water stress imposed by reducing irrigation (once in 7 days or once in 15 days) revealed that, all cultivars (Dundee, LS 677, LS 678, TGx 1740-2F, TGx 1835-10E and Peking) were highly susceptible to prolonged water stress, exhibiting severe dehydration and death. A 15.0 and 30.0% survival frequency was obtained in plants irrigated once in 7 days; LS 677 and Peking, respectively. Unlike many other stresses, water deficit did not only affect the density of stomata, but, photosynthesis was affected by the lower levels of tissue CO2. These results suggest that, balanced biochemical, physiological, anatomical and morphological regulations are necessary for increased growth and yields in soybean.

Download or read book Soybean Physiology Agronomy and Utilization written by A.G. Norman and published by Elsevier. This book was released on 2012-12-02 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean Physiology, Agronomy, and Utilization attempts to cover and treat in logical sequence the factors that contribute to the potential and versatility of soybeans. The soybean is a major crop plant in the United States. Based on the utilization of the bean, or products therefrom, a substantial soybean industry has also developed. Its uses, agricultural and industrial, primarily depend on the high content of both protein (ca. 40%) and oil (ca. 20%) in the bean. The book begins by discussing soybean production in the United States and worldwide; the uses and economics of soybean products; and the soybean in physiological research. It explains the growth and development of soybeans. It discusses the physiological processes responsible for assimilating the plant body from the environment, namely photosynthesis, nitrogen fixation, and nitrate reduction. Subsequent chapters examine the impact of environmental variables—such as light, temperature, water, wind, and pests—on soybean plant characteristics as well as soybean breeding, production, processing, and utilization.

Download or read book Effect of Water Stress at Different Stages of Growth on Nitrogen Accumulation During the Reproductive Period in Soybeans written by B. P. Singh and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soybean Glycine Max L Merr Seed Water Relations During Growth and Maturation written by Imad Nabih Saab and published by . This book was released on 1987 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Duration of Water Stress at Different Growth Stages on Growth and Yield of Soybeans Glycine Max L Merrill written by Suwit Laohasiriwong and published by . This book was released on 1982 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Water Stress Root Temperature and Carbohydrate Supply to the Nodules on Nitrogen Fixation in Soybean Glycine Max L Merr Plants written by Riadh A. Ahmad and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Row Spacing Plant Population and Varieties on Both Irrigated and Non Irrigated Soybean Glycine Max L Merrill Production written by Frank William Pearsall and published by . This book was released on 1982 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Stresses in Soybean Production written by Mohammad Miransari and published by Academic Press. This book was released on 2016-06-14 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Stress Conditions in Soybean Production: Soybean Production, Volume Two, examines the impact of conditions on final crop yield and identifies core issues and methods to address concerns. As climate and soil quality changes and issues continue to manifest around the world, methods of ensuring sustainable crop production is imperative. The care and treatment of the soil nutrients, how water availability and temperature interact with both soil and plant, and what new means of crop protection are being developed make this an important resource for those focusing on this versatile crop. The book is a complement to volume one, Abiotic and Biotic Stresses in Soybean Production, providing further insights into crop protection. Presents insights for addressing specific environmental stress conditions in soybean production, including soil, atmospheric, and other contributing factors Facilitates translational methods based on stress factors from around the world Examines the future of soybean production challenges, including those posed by climate change Complements volume one, Abiotic and Biotic Stresses in Soybean Production, providing further insights into crop protection

Download or read book The Effects of Water Stress Root Temperature and Carbonhydrate Supply to the Nodules on Nitrogen Fixation in Soybean Glycine Max L Merr Plants written by Riadh A. Ahmad and published by . This book was released on 1979 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Water Stress and Temperature on Germination and Vegetative Growth of Soybeans written by Riadh A. Ahmad and published by . This book was released on 1974 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soybean Glycine Max L Merr Growth and Yield in Response to Blending Cultivars and Soil water Adjustment written by Percy Chisanga Simwanza and published by . This book was released on 1992 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abiotic and Biotic Stresses in Soybean Production written by Mohammad Miransari and published by Academic Press. This book was released on 2015-12-31 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic and Biotic Stresses in Soybean Production: Soybean Production Volume One presents the important results of research in both field and greenhouse conditions that guide readers to effectively manage the chemical, physical, and biological factors that can put soybean production at risk. Including the latest in genetics, signaling, and biotechnology, the book identifies these types of stresses, their causes, and means of avoiding, then addresses existing stresses to provide a comprehensive overview of key production yield factors. By presenting important insights into the historical and emerging uses for soybean, the book educates readers on the factors for consideration as new uses are developed. It is an ideal complement to volume two, Environmental Stress Conditions in Soybean Production, that work together to provide valuable insights into crop protection. Presents insights for the successful production of soybean based on chemical, physical and biologic challenges Includes the latest specifics on soybean properties, growth, and production, including responses to different stresses and their alleviation methods Offers recent advancements related to the process of N fixation and rhizobium, including signaling pathways and their practical use Explores the production of rhizobium inoculums at large-scale levels