Water Stress Morphological And Anatomical Changes In Soybean Glycine Max L Plants

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Water Stress: Morphological and Anatomical Changes in Soybean (Glycine Max L.) Plants

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Author : Phetole Mangena
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

Book Synopsis Water Stress: Morphological and Anatomical Changes in Soybean (Glycine Max L.) Plants by : Phetole Mangena

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.

Response of Soybeans [Glycine Max (L.) Merrill] to Soil Water Stress During Different Stages of Growth

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Author : Clarence Johnson
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (225 download)

Book Synopsis Response of Soybeans [Glycine Max (L.) Merrill] to Soil Water Stress During Different Stages of Growth by : Clarence Johnson

Download or read book Response of Soybeans [Glycine Max (L.) Merrill] to Soil Water Stress During Different Stages of Growth written by Clarence Johnson and published by . This book was released on 1973 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physiological and Biochemical Changes in the Soybean (Glycine Max) Cultivars Essex and Forrest in Response to Water-deficit Stress

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Author : Bhunesh Kothanur
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (981 download)

Book Synopsis Physiological and Biochemical Changes in the Soybean (Glycine Max) Cultivars Essex and Forrest in Response to Water-deficit Stress by : Bhunesh Kothanur

Download or read book Physiological and Biochemical Changes in the Soybean (Glycine Max) Cultivars Essex and Forrest in Response to Water-deficit Stress written by Bhunesh Kothanur and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought and water-deficit adversely affect plant productivity. Limited water is a multidimensional stress that induces a number of molecular, biochemical and physiological changes in affected plants. These changes include altered photosynthetic capacity, altered gas exchange and the accumulation of secondary compounds. Glycine max (L.) Merrill (soybean) is an important crop and drought is a major limitation to soybean yield world--wide. The objective of this study is to monitor the physiological and biochemical responses to water-deficit stress in seedlings of two G. max cultivars (i.e. Forrest and Essex). The responses measured are: 1) relative water content (RWC), 2) net photosynthesis, 3) stomatal conductance, 3) evaporation rate, 4) water use efficiency (WUE), 5) radiation use efficiency (RUE) and 6) trigonelline accumulation. Trigonelline is a secondary compound known to accumulate in soybean in response to salinity- and water-deficit-stress. 14 day-old seedlings of Forrest (cv.) and Essex (cv.) were grown on open benches in the SIUC greenhouse and water was withheld for six days (i.e.15-to-20 DAP). During the treatment, RWC declined in both cultivars—from 89 to 41% in Essex and 83 to 60% in Forrest. Concomitantly, net photosynthesis, stomatal conductance, evaporation rate, WUE and RUE also declined in both cultivars. As RWC declined, the amount of trigonelline increased in both cultivars—from 2.3 to 5.34 OD gFW-1 in Essex and 2.3 to 6.63 OD gFW -1 in Forrest. The data supports the idea that trigonelline may function as a compatible solute and that confirms the hypothesis that trigonelline is a biomarker for plant water status.

Molecular Plant Abiotic Stress

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Author : Aryadeep Roychoudhury
Publisher : John Wiley & Sons
ISBN 13 : 111946367X
Total Pages : 613 pages
Book Rating : 4.1/5 (194 download)

Book Synopsis Molecular Plant Abiotic Stress by : Aryadeep Roychoudhury

Download or read book Molecular Plant Abiotic Stress written by Aryadeep Roychoudhury and published by John Wiley & Sons. This book was released on 2019-06-13 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: A close examination of current research on abiotic stresses in various plant species The unpredictable environmental stress conditions associated with climate change are significant challenges to global food security, crop productivity, and agricultural sustainability. Rapid population growth and diminishing resources necessitate the development of crops that can adapt to environmental extremities. Although significant advancements have been made in developing plants through improved crop breeding practices and genetic manipulation, further research is necessary to understand how genes and metabolites for stress tolerance are modulated, and how cross-talk and regulators can be tuned to achieve stress tolerance. Molecular Plant Abiotic Stress: Biology and Biotechnology is an extensive investigation of the various forms of abiotic stresses encountered in plants, and susceptibility or tolerance mechanisms found in different plant species. In-depth examination of morphological, anatomical, biochemical, molecular and gene expression levels enables plant scientists to identify the different pathways and signaling cascades involved in stress response. This timely book: Covers a wide range of abiotic stresses in multiple plant species Provides researchers and scientists with transgenic strategies to overcome stress tolerances in several plant species Compiles the most recent research and up-to-date data on stress tolerance Examines both selective breeding and genetic engineering approaches to improving plant stress tolerances Written and edited by prominent scientists and researchers from across the globe Molecular Plant Abiotic Stress: Biology and Biotechnology is a valuable source of information for students, academics, scientists, researchers, and industry professionals in fields including agriculture, botany, molecular biology, biochemistry and biotechnology, and plant physiology.

Effects of Water Stress Timing in the Field on Growth, Yield, and Water Use Efficiency of Soybeans (Glycine Max L.) of Varying Growth Habit

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Author : Mohammad Reza Neyshabouri
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.:/5 (15 download)

Book Synopsis Effects of Water Stress Timing in the Field on Growth, Yield, and Water Use Efficiency of Soybeans (Glycine Max L.) of Varying Growth Habit by : Mohammad Reza Neyshabouri

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:

Water Stress Effects on Physiological Processes and Yield of Soybeans

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Author : Mahmoud Fadl El Mula Ahmed
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (111 download)

Book Synopsis Water Stress Effects on Physiological Processes and Yield of Soybeans by : Mahmoud Fadl El Mula Ahmed

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.

Plasticity of Soybean (Glycine Max (l.) Merrill) Root Development Under Mild Water Deficits

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Author : Yong He
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (423 download)

Book Synopsis Plasticity of Soybean (Glycine Max (l.) Merrill) Root Development Under Mild Water Deficits by : Yong He

Download or read book Plasticity of Soybean (Glycine Max (l.) Merrill) Root Development Under Mild Water Deficits written by Yong He and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought is the major abiotic factor limiting soybean yield in the US. Under water deficit conditions, root systems may exhibit developmental plasticity resulting in morphological changes that extend the water-absorbing surface area of the roots. The objective of this study was to identify soybean genotypes which exhibit genetic diversity in root system developmental plasticity in response to water deficits, in order to enable physiological and genetic analyses of the regulatory mechanisms involved. Studies were conducted both at the seedling stage under precisely-controlled water deficits, and during three-week soil drying treatments of plants growing in 1.5 m-deep soil cylinders in controlled-environment chambers. Using the seedling system, 11 soybean genotypes selected from both domestic and Plant Introduction lines were studied. The results showed substantial genetic diversity in the capacity for increased lateral root development (number and total length of roots produced) and in the responses of overall root and shoot growth under water deficit conditions. Studies of the spatial and temporal patterns of lateral root development showed that the promotion of lateral root length under water deficit conditions was due to an increased root production rate rather than earlier initiation or promotion of root elongation. Genotypes with either superior or inferior root plasticity responses at the seedling stage were selected for more detailed studies using the deeper soil cylinder system with more mature plants. The results showed consistent genetic differences in lateral root developmental plasticity under water deficit conditions between the seedling and more mature plant systems.

The Effects of Water Stress, Root Temperature, and Carbohydrate Supply to the Nodules on Nitrogen Fixation in Soybean (Glycine Max L. Merr.) Plants

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Author : Riadh A. Ahmad
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (571 download)

Book Synopsis The Effects of Water Stress, Root Temperature, and Carbohydrate Supply to the Nodules on Nitrogen Fixation in Soybean (Glycine Max L. Merr.) Plants by : Riadh A. Ahmad

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:

Plant, Abiotic Stress and Responses to Climate Change

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Author : Violeta Andjelkovic
Publisher : BoD – Books on Demand
ISBN 13 : 1789231221
Total Pages : 188 pages
Book Rating : 4.7/5 (892 download)

Book Synopsis Plant, Abiotic Stress and Responses to Climate Change by : Violeta Andjelkovic

Download or read book Plant, Abiotic Stress and Responses to Climate Change written by Violeta Andjelkovic and published by BoD – Books on Demand. This book was released on 2018-05-23 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is a serious problem influencing agricultural production worldwide and challenging researchers to investigate plant responses and to breed crops for the changed growing conditions. Abiotic stresses are the most important for crop production, affecting about 96.5% of arable land worldwide. These stress factors include high and low temperature, water deficit (drought) and flooding, salinity, heavy metals, UV radiation, light, chemical pollutants, and so on. Since some of the stresses occurred simultaneously, such as heat and water deficit, causing the interactions of physiological processes, novel multidisciplinary solutions are needed. This book provides an overview of the present state in the research of abiotic stresses and molecular, biochemical, and whole plant responses, helping to prevent the negative impact of global climate change.

A Comprehensive Survey of International Soybean Research - Genetics, Physiology, Agronomy and Nitrogen Relationships

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Author : James E. Board
Publisher :
ISBN 13 : 9789535142591
Total Pages : 626 pages
Book Rating : 4.1/5 (425 download)

Book Synopsis A Comprehensive Survey of International Soybean Research - Genetics, Physiology, Agronomy and Nitrogen Relationships by : James E. Board

Download or read book A Comprehensive Survey of International Soybean Research - Genetics, Physiology, Agronomy and Nitrogen Relationships written by James E. Board and published by . This book was released on 2013 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean is the most important oilseed and livestock feed crop in the world. These dual uses are attributed to the crop's high protein content (nearly 40% of seed weight) and oil content (approximately 20%); characteristics that are not rivaled by any other agronomic crop. Across the 10-year period from 2001 to 2010, world soybean production increased from 168 to 258 million metric tons (54% increase). Against the backdrop of soybean's striking ascendancy is increased research interest in the crop throughout the world. Information in this book presents a comprehensive view of research efforts in genetics, plant physiology, agronomy, agricultural economics, and nitrogen relationships that will benefit soybean stakeholders and scientists throughout the world. We hope you enjoy the book.

Adaptation to Water Stress in Soybean: Morphology to Genetics

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Author : Tuanjie Zhao
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

Book Synopsis Adaptation to Water Stress in Soybean: Morphology to Genetics by : Tuanjie Zhao

Download or read book Adaptation to Water Stress in Soybean: Morphology to Genetics written by Tuanjie Zhao and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max L.) is the most important legume and oilseed crop. As a leguminous crop, it plays an irreplaceable role towards the sustainable agricultural system with biological nitrogen fixation. However, its production can be dramatically decreased by the occurrence of water stress. Water stress including drought and flooding induces the morpho-physiological and biochemical changes at different growth stages, which negatively affects the adaptability and yield of soybean. Genetic diversity that ensures productivity in challenging environment exists within germplasm, their wild relatives and species that are adapted to the water stress. The discovery of gene mapping, QTLs associated with root traits, slow canopy wilting, nitrogen fixation and flooding tolerance have accomplished significant progress in breeding programs. Identification of drought-responsive genes and transcription factors such as WRKY, DREBs, ERFs, ZIP, ZFP, MYB and NAC are valuable to ameliorate the water stress in soybean. Understanding the genetic mechanism using transcriptomic and proteomic approaches would be the ultimate choice for mitigating the water stress. Integration of well-designed soybean breeding program coupled with omic techniques would pave the way for developing drought and flooding resilient soybean cultivars.

The Effects of Water Stress, Root Temperature, and Carbonhydrate Supply to the Nodules on Nitrogen Fixation in Soybean (Glycine Max L. Merr.) Plants

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Author : Riadh A. Ahmad
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (638 download)

Book Synopsis The Effects of Water Stress, Root Temperature, and Carbonhydrate Supply to the Nodules on Nitrogen Fixation in Soybean (Glycine Max L. Merr.) Plants by : Riadh A. Ahmad

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:

Effects of Water Stress on Dry Matter Accumulation of 'Bragg' Soybean (Glycine Max (lL.) Merrill).

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Author : Odair Alves Bovi
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (78 download)

Book Synopsis Effects of Water Stress on Dry Matter Accumulation of 'Bragg' Soybean (Glycine Max (lL.) Merrill). by : Odair Alves Bovi

Download or read book Effects of Water Stress on Dry Matter Accumulation of 'Bragg' Soybean (Glycine Max (lL.) Merrill). written by Odair Alves Bovi and published by . This book was released on 1981 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Governors of Maryland and Education, 1850-1950

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Author : Ramachandran Suresh
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (166 download)

Book Synopsis Governors of Maryland and Education, 1850-1950 by : Ramachandran Suresh

Download or read book Governors of Maryland and Education, 1850-1950 written by Ramachandran Suresh and published by . This book was released on 1987 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Soil Moisture and Atmospheric Conditions on the Water Status of Soybean Plants (Glycine Max (L.) Merrill).

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Author : Cleber Morais Guimares
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (566 download)

Book Synopsis Effects of Soil Moisture and Atmospheric Conditions on the Water Status of Soybean Plants (Glycine Max (L.) Merrill). by : Cleber Morais Guimares

Download or read book Effects of Soil Moisture and Atmospheric Conditions on the Water Status of Soybean Plants (Glycine Max (L.) Merrill). written by Cleber Morais Guimares and published by . This book was released on 1979 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted in the field to study the effects of soil moisture and atmospheric conditions on the water status of soybeans. Leaf diffusive resistance at midday, and leaf water potential early in the morning and at midday correlated with soil moisture and atmospheric parameters. The atmospheric parameters studied were: solar radiation, potential evapotranspiration, pan evaporation and maximum air temperature. In addition leaf temperatures were correlated with leaf diffusive resistance. Atmospheric conditions explained the variations of non-stressed plants better than in the stressed plants in 1977 were explained better than in 1978. Probably factors associated with limited volume of soil, and different soil structure inside the soil containers used in 1978 were the reason for those variations of results. The highest yields were obtained from plants not stressed during the entire season. Treatments A (water stress initiated during the flowering), B (water stress initiated during early pod formation), and C (water stress initiated during later pod filling) reduced A and the control were the same. However, the seeds on plants of treatments B and C were significantly smaller. Stress applied during the late pod filling stage produced the smallest seeds. Information obtained from this experiment illustrated two points: (1) the importance of studying plant water status under natural environmental conditions, and (2) water stress during late pod filling is more deleterious on soybean yield than water stress imposed at any other stage.

Effects of Duration of Water Stress at Different Growth Stages on Growth and Yield of Soybeans (Glycine Max (L.) Merrill)

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Author : Suwit Laohasiriwong
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.:/5 (154 download)

Book Synopsis Effects of Duration of Water Stress at Different Growth Stages on Growth and Yield of Soybeans (Glycine Max (L.) Merrill) by : Suwit Laohasiriwong

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:

Plant responses to flooding

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Author : Pierdomenico Perata
Publisher : Frontiers E-books
ISBN 13 : 2889193047
Total Pages : 143 pages
Book Rating : 4.8/5 (891 download)

Book Synopsis Plant responses to flooding by : Pierdomenico Perata

Download or read book Plant responses to flooding written by Pierdomenico Perata and published by Frontiers E-books. This book was released on 2015-01-05 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: