Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Potential For Improving The Drought Resistance Of Soybean Glycine Max L Merr Using The Transpiration Efficiency Trait
Download Potential For Improving The Drought Resistance Of Soybean Glycine Max L Merr Using The Transpiration Efficiency Trait full books in PDF, epub, and Kindle. Read online Potential For Improving The Drought Resistance Of Soybean Glycine Max L Merr Using The Transpiration Efficiency Trait ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Potential for Improving the Drought Resistance of Soybean (Glycine Max (L.) Merr.) Using the Transpiration Efficiency Trait by : Damien Scott White
Download or read book Potential for Improving the Drought Resistance of Soybean (Glycine Max (L.) Merr.) Using the Transpiration Efficiency Trait written by Damien Scott White and published by . This book was released on 1998 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The improvement of drought tolerance of commercial soybean varieties via indirect selection for transpiration efficiency (TE) in breeding programs was investigated. The extent and nature of variation for TE among soybean genotypes were established through glasshouse experiments under well watered conditions, and confirmed in the field under contrasting water stress conditions. The results suggest that increasing TE will be a beneficial strategy to improve soybean grain yield at the crop level, and a protocol developed suited to indirect selection for high TE soybean genotypes under a range of environments. This will have immediate application in the development of soybean varieties specifically adapted to the dryland production areas of the Australian sub-tropics.
Book Synopsis Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (glycine Max) by : Sumandeep Kaur Bazzer
Download or read book Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (glycine Max) written by Sumandeep Kaur Bazzer and published by . This book was released on 2020 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max L.) is one of the major row crops in the United States, and its production is often limited by drought stress. Physiological traits from exotic germplasm that confer drought tolerance may be useful in improving commercial soybean production. For example, carbon isotope ratio (?13C) is positively correlated with water use efficiency (WUE), and nitrogen isotope ratio (?15N) is negatively correlated with N2 fixation; canopy temperature (CT) is an indicator for genetic variation in transpiration and stomatal conductance. Therefore, the objectives of this research were to identify the genomic regions associated with: (1) ?13C and ?15N using a population of 196 F6-derived recombinant inbred lines (RIL) from PI 416997 × PI 567201D that was phenotyped in four environments, (2) CT and ?13C using a population of 168 F5-derived RILs from KS4895 × Jackson that was phenotyped in multiple environments and irrigation treatments. In the PI 416997 × PI 567201D population, ?13C and ?15N had a wide phenotypic range in all environments, and PI 416997 had higher ?13C and lower ?15N values than PI 567201D. ?13C had high heritability (90%) whereas the heritability of ?15N was relatively lower (35%), indicating that ?15N was more affected by the environment. QTL mapping identified eight loci on seven chromosomes associated with ?13C, and these loci explained between 2.5 to 30% of the phenotypic variation. There were 13 loci on 10 chromosomes associated with ?15N, explaining 1.7 to 14.4% of the phenotypic variation. There were strong interactions between QTLs and environments for ?15N. In the KS4895 × Jackson RIL population, Jackson had a cooler canopy than KS4895, and the heritability of CT had low heritability (31%) across environments. There were 11 loci present on eight chromosomes associated with CT that individually explained 4.6 to 12.3% of the phenotypic variation. The heritability of ?13C in KS4895 × Jackson RIL population heritability was 83% when estimated over environments and over irrigation treatments. A total of 24 QTLs associated with ?13C were identified and clustered in nine genomic loci on seven chromosomes. The identified QTLs for ?13C, ?15N, and CT were co-localized with genomic regions associated with drought tolerance-related traits from previous studies. These genomic regions may be important resources in soybean breeding programs to improve tolerance to drought. Further research is needed to fine map the identified QTLs and validate markers linked with these regions.
Book Synopsis Evaluation of Soybean (Glycine Max L. Merr.) Root Development in Greenhouse Solution Culture and the Relationship to Drought Tolerance in the Field by : Lynn Liane Scherbert
Download or read book Evaluation of Soybean (Glycine Max L. Merr.) Root Development in Greenhouse Solution Culture and the Relationship to Drought Tolerance in the Field written by Lynn Liane Scherbert and published by . This book was released on 1985 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-Use Efficiency: Advances and Challenges in a Changing Climate by : Manoj Menon
Download or read book Water-Use Efficiency: Advances and Challenges in a Changing Climate written by Manoj Menon and published by Frontiers Media SA. This book was released on 2019-10-15 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seedling Shoot and Root Growth Responses Among Soybean (Glycine Max) Genotypes to Drought Stress by : Obed Mwenye
Download or read book Seedling Shoot and Root Growth Responses Among Soybean (Glycine Max) Genotypes to Drought Stress written by Obed Mwenye and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought stress is a major limiting factor in soybean production in South Africa. The development of soybean varieties with enhanced tolerance to soil waterlimited induced stress (WLIS) is one sustainable way to deal with drought. Root traits have shown strong potential for improvement of drought tolerance through breeding. The objectives of this study were to evaluate seedling shoot- and root growth responses under WLIS in order to study root morphology as a mechanism to cope with drought stress and to determine if there were genotypic differences in shoot- and root morphology between drought tolerant and -sensitive soybean genotypes. Seedlings of three drought tolerant and one sensitive genotype were subjected to soil WLIS in deep-root-pots for 21 days. Results suggested significant genotypic differences for shoot length, number of leaves, tap root length and root-to-shoot length ratio. Soybean tolerant genotypes were associated with moderate shoot biomass, deep rooting abilities and maintained a large root-to-shoot ratio under WLIS conditions. In contrast, the sensitive genotype was associated with a reduced root-to-shoot ratio and shallower root system. Soybean genotypes showed varying seedling root growth responses to soil WLIS, while shoot biomass characteristics were similar.
Book Synopsis Australian Journal of Plant Physiology by :
Download or read book Australian Journal of Plant Physiology written by and published by . This book was released on 1999 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variation for Physiological Traits Affecting Drought Tolerance Among Ontario-adapted Commercial Soybean [Glycine Max (L.) Merr.] Varieties Grown in 1-m Rooting Columns by : Michael Gebretsadik Gebre
Download or read book Genetic Variation for Physiological Traits Affecting Drought Tolerance Among Ontario-adapted Commercial Soybean [Glycine Max (L.) Merr.] Varieties Grown in 1-m Rooting Columns written by Michael Gebretsadik Gebre and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought stress significantly limits soybean production in Ontario. Identification of physiological traits to improve drought tolerance in soybean would benefit from controlled-environment phenotyping methods. It was hypothesized that elite Ontario-adapted soybean varieties would differ for drought tolerance. A greenhouse culture system was developed employing 1-m rooting columns filled with amended field soil, that presents field-like volumetric soil water content and rooting profiles by depth. Different levels of drought stress were simulated in this system by restoring soil water to 100% (control), 75% (mild stress) or 50% (drought stress) of the maximum soil water holding capacity by daily weighing and watering from first flower (R1) until maturity. The effect of applying fertilizer throughout the 1-m soil profile instead of confining it to the upper 30 cm was tested. Distributing fertilizer over the entire 1-m rooting depth resulted in deeper rooting and more soil water extraction at depth at the R1 stage; however, these effects did not persist until maturity and so did not affect drought tolerance. Fifteen Ontario-adapted commercial soybean varieties were compared for their drought tolerance, defined as the ratio of their seed yield under drought conditions compared to control conditions (seed yield ratio; SYR). Similar to the effects of drought in the field, pod number was by far the yield component most affected, with effects on seeds per pod and single-seed weight being relatively minor. Based on their SYR, two drought-sensitive varieties (Saska and OAC Drayton) and three drought-tolerant varieties (OAC Lakeview, OAC Champion, and PRO 2715R) were identified. Principal components analysis showed that drought-tolerant varieties were those that maintained relatively high water use, shoot dry matter, and pod number under stress. Varieties differed for root biomass distribution by depth, but not for soil water extraction profiles, and there was no evidence that differences in drought tolerance were associated with rooting traits among these fifteen varieties. This study helps define the physiological basis of soybean variety differences in drought tolerance, and provides novel phenotyping tools for soybean breeders to select for root function and yield formation traits that could improve soybean yield under drought stress.
Book Synopsis Abiotic and Biotic Stresses in Soybean Production by : Mohammad Miransari
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
Book Synopsis Genomics and Breeding for Climate-Resilient Crops by : Chittaranjan Kole
Download or read book Genomics and Breeding for Climate-Resilient Crops written by Chittaranjan Kole and published by Springer Science & Business Media. This book was released on 2013-06-18 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is expected to have a drastic impact on agronomic conditions including temperature, precipitation, soil nutrients, and the incidence of disease pests, to name a few. To face this looming threat, significant progress in developing new breeding strategies has been made over the last few decades. The second volume of Genomics and Breeding for Climate-Resilient Crops describes various genomic and breeding approaches for the genetic improvement of the major target traits. Topics covered include: flowering time; root traits; cold, heat and drought tolerance; water use efficiency; flooding and submergence tolerance; disease and insect resistance; nutrient use efficiency; nitrogen fixation; carbon sequestration; and greenhouse gas emissions.
Book Synopsis Crop Systems Biology by : Xinyou Yin
Download or read book Crop Systems Biology written by Xinyou Yin and published by Springer. This book was released on 2015-11-11 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sequencing of genomes has been completed for an increasing number of crop species, and researchers have now succeeded in isolating and characterising many important QTLs/genes. High expectations from genomics, however, are waving back toward the recognition that crop physiology is also important for realistic improvement of crop productivity. Complex processes and networks along various hierarchical levels of crop growth and development can be thoroughly understood with the help of their mathematical description – modelling. The further practical application of these understandings also requires quantitative predictions. In order to better support design, engineering and breeding for new crops and cultivars for improving agricultural production under global warming and climate change, there is an increasing call for an interdisciplinary research approach, which combines modern genetics and genomics, traditional physiology and biochemistry, and advanced bioinformatics and modelling. Such an interdisciplinary approach has been practised in various research groups for many years. However, it does not seem to be fully covered in the format of book publications. We want to initiate a book project on crop systems biology - narrowing the gaps between genotypes and phenotypes and the gaps between crop modelling and genetics/genomics, for publication in 2013/2014. The book will be meant for those scientists and graduate students from fundamental plant biology and applied crop science who are interested in bridging the gap between these two fields. We have invited a group of scientists (who have very good track records in publishing excellent papers in this field or in a closely related area) to contribute chapters to this new book, and they have agreed to do so.
Book Synopsis Recent Advances on Nitrogen Use Efficiency in Crop Plants and Climatic Challenges by : Hamada AbdElgawad
Download or read book Recent Advances on Nitrogen Use Efficiency in Crop Plants and Climatic Challenges written by Hamada AbdElgawad and published by Frontiers Media SA. This book was released on 2023-08-25 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen (N) is a mineral nutrient that is essential for the normal growth and development of plants that is required in the highest quantity. It is an element of nucleic acids, proteins, and photosynthetic metabolites, therefore crucial for crop growth and metabolic processes. Recently, it was estimated that N fertilizers could meet the 48% demand of the world’s population. However, overuse and misuse of N fertilizers raised environmental concerns associated with N losses by nitrous oxide (N2O) emissions, ammonia (NH3) volatilization, and nitrate (NO3−) leaching. For instance, NH3 is a pollutant in the atmosphere, N2O is a greenhouse gas that has a warming potential 298 times higher than CO2 and contributes to ozone depletion, and NO3− causes eutrophication of water bodies. Agricultural practices account for about 90% of NH3 and 70% of N2O anthropogenic emissions worldwide. The efficient use of N chemical fertilizers can be attained through cultural and agronomic practices. Nitrogen use efficiency (NUE) is an important trait that has been studied for decades in different crops. The grain production or economic return from the per unit supply of N fertilizer simply explained the NUE. Several definitions were suggested by different researchers. NUE can be defined as the product of N uptake efficiency (NUpE) and N utilization efficiency (NUtE). An increase in NUE increases the yield, biomass, quality, and quantity of crops. N is generally applied as chemical fertilizer to the soil, whereas a small amount is added to some crops like grain legumes through the fixation process. On the other hand, crop plants take N through the root system in the form of nitrate or ammonium which is thereby used in different metabolic processes. A number of studies have been conducted to increase the NUE in different crops and it has been indicated that NUE can be improved by agronomic, physiological, biochemical, breeding as well as molecular approaches. Nitrogen is the main limiting nutrient after carbon, hydrogen, and oxygen for the photosynthetic process, phyto-hormonal and proteomic changes, and the growth-development of plants to complete their lifecycle. Excessive and inefficient use of N fertilizer results in enhanced crop production costs and atmospheric pollution. Atmospheric nitrogen (71%) in the molecular form is not available for the plants. For the world's sustainable food production and atmospheric benefits, there is an urgent need to upgrade nitrogen use efficiency in the agricultural farming system. Nitrogen losses are too high, due to excess amount, low plant population, poor application methods, etc., which can go up to 70% of total available nitrogen. These losses can be minimized up to 15–30% by adopting improved agronomic approaches such as optimal dosage of nitrogen, application of N by using canopy sensors, maintaining plant population, drip fertigation, and legume-based intercropping. Therefore, the major concern of modern days is to save economic resources without sacrificing farm yield as well as the safety of the global environment, i.e. greenhouse gas emissions, ammonium volatilization, and nitrate leaching.
Book Synopsis Contrast of Two Soybeans (Glycine Max (L.) Merr) Cultivars for Drought Resistance Using Several Drought Indicators by : Alan Daniel Reeverts
Download or read book Contrast of Two Soybeans (Glycine Max (L.) Merr) Cultivars for Drought Resistance Using Several Drought Indicators written by Alan Daniel Reeverts and published by . This book was released on 1986 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Drought Tolerance in Soybeans [Glycine Max (L.) Merr.] by : Mohsen Boubaker
Download or read book A Study of Drought Tolerance in Soybeans [Glycine Max (L.) Merr.] written by Mohsen Boubaker and published by . This book was released on 1986 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plant Hydraulics Under Climate Change by : Dongliang Xiong
Download or read book Plant Hydraulics Under Climate Change written by Dongliang Xiong and published by Frontiers Media SA. This book was released on 2022-07-29 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparison of Two Soybean Cultivars (Glycine Max (L.) Merr.) for Drought Resistance Under Greenhouse Conditions Using Several Drought Indicators by : Richard Douglas Nesbitt
Download or read book Comparison of Two Soybean Cultivars (Glycine Max (L.) Merr.) for Drought Resistance Under Greenhouse Conditions Using Several Drought Indicators written by Richard Douglas Nesbitt and published by . This book was released on 1986 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Climate Change and Cotton Production in Modern Farming Systems by : Michael P Bange
Download or read book Climate Change and Cotton Production in Modern Farming Systems written by Michael P Bange and published by CABI. This book was released on 2016-03-02 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the world cotton is broadly adapted to growing in temperate, sub-tropical, and tropical environments, but growth may be challenged by future climate change. Production may be directly affected by changes in crop photosynthesis and water use due to rising CO2 and changes in regional temperature patterns. Indirect effects may result from a range of government regulations aimed at climate change mitigation. While there is certainty that future climate change will impact cotton production systems; there will be opportunities to adapt. This review begins to provide details for the formation of robust frameworks to evaluate the impact of projected climatic changes, highlight the risks and opportunities with adaptation, and details the approaches for investment in research. Ultimately, it is a multi-faceted systems-based approach that combines all elements of the cropping system that will provide the best insurance to harness the change that is occurring, and best allow cotton industries worldwide to adapt. Given that there will be no single solution for all of the challenges raised by climate change and variability, the best adaptation strategy for industry will be to develop more resilient systems. Early implementation of adaptation strategies, particularly in regard to enhancing resilience, has the potential to significantly reduce the negative impacts of climate change now and in the future.
![Download Genetic Variation for Physiological Traits Affecting Drought Tolerance Among Ontario-adapted Commercial Soybean [Glycine Max (L.) Merr.] Varieties Grown in 1-m Rooting Columns PDF Online Free](https://books.google.com/books/content/images/frontcover/o-w1zwEACAAJ?fife=w200-h370)
![Download A Study of Drought Tolerance in Soybeans [Glycine Max (L.) Merr.] PDF Online Free](https://books.google.com/books/content/images/frontcover/swmJGwAACAAJ?fife=w200-h370)
