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Genetic Improvement For Winter Wheat Yield And Quality Under Dual Purpose And Grain Only Management Systems
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Book Synopsis Genetic Improvement for Winter Wheat Yield and Quality Under Dual-purpose and Grain-only Management Systems by : Iftikhar Hussain Khalil
Download or read book Genetic Improvement for Winter Wheat Yield and Quality Under Dual-purpose and Grain-only Management Systems written by Iftikhar Hussain Khalil and published by . This book was released on 2001 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plant Breeding Reviews, Volume 24, Part 2 by : Jules Janick
Download or read book Plant Breeding Reviews, Volume 24, Part 2 written by Jules Janick and published by John Wiley & Sons. This book was released on 2010-04-07 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Breeding Reviews, Volume 24, Part 2 presents state-of-the-art reviews on plant genetics and the breeding of all types of crops by both traditional means and molecular methods. The emphasis of the series is on methodology, a practical understanding of crop genetics, and applications to major crops.
Book Synopsis Yield Gains in Major U.S. Field Crops by : Stephen Smith
Download or read book Yield Gains in Major U.S. Field Crops written by Stephen Smith and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: When humankind began to save seed to plant for the next season, they did so hoping to secure a food supply for the future. With that came the inevitable question: Will it be enough? Scientists today are still asking that question. Our dependence on domesticated cultivated varieties has never been greater, even as increasing populations strain our resource base. This book provides a fascinating snapshot-in-time account of the productivity status of all major U.S. field crops. Each crop has a different story to tell. Plant breeding, biotechnology, and agronomy have shaped these stories. It is imperative that we learn from them to ensure continued productivity. The solution is long-term stewardship and the most effective use of our critical resources—water, soil, genetic resources, and human intellect.
Book Synopsis Improving Dual-Purpose Winter Wheat in the Southern Great Plains of the United States by : Xue-Feng Ma
Download or read book Improving Dual-Purpose Winter Wheat in the Southern Great Plains of the United States written by Xue-Feng Ma and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This chapter covers the production and breeding status of winter wheat (Triticum aestivum L.) used for early-season animal grazing and late-season grain production in the Southern Great Plains of the United States. Besides, in the chapter, the current production status and needs, the drawbacks of current cultivars, breeding strategies of the crop, novel genomics tools, and sensor technologies that can be used to improve dual-purpose winter wheat cultivars were presented. We will focus on traits that are, in general, not required by cultivars used for grain-only production but are critical for cool-season forage production.
Book Synopsis Annual Meetings Abstracts by : American Society of Agronomy
Download or read book Annual Meetings Abstracts written by American Society of Agronomy and published by . This book was released on 2000 with total page 518 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 2004 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genotype, Environment, and Management Interactions on Grain Yield and Nutrient Uptake Dynamics in Winter Wheat by : Amanda De Oliveira Silva
Download or read book Genotype, Environment, and Management Interactions on Grain Yield and Nutrient Uptake Dynamics in Winter Wheat written by Amanda De Oliveira Silva and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding factors underpinning the variation in nitrogen (N) utilization efficiency (NUtE) [i.e., grain yield per unit of N uptake at maturity] is critical to direct future breeding and agronomic management strategies in wheat. However, no study has summarized changes in wheat NUtE across a wide range of environments. Further, the conservative behavior of producers to intensify management practices may have been contributing to the yield stagnation in the US southern Great Plains. Our goals were to: (i) perform a synthesis-analysis using published data to study NUtE in wheat, and (ii) conduct field studies to investigate the influence of genotype, environment, and management on grain yield and nutrient uptake. Results from our synthesis-analysis (n=529) showed a positive and curvilinear relationship between grain yield and NupMAT, indicating that opportunities to enhance yield through improving NUtE would only be possible at greater-than-average yield and N uptake levels. By measuring the effects of other reported variables on the residuals of the relationship between NUtE and N uptake, we observed that the variability in NUtE at particular levels of N uptake was greater for fall- than for winter-sown wheat, but it was similar for all wheat classes. The negative correlation between grain protein concentration and the residuals indicated a challenge to increase yield through improving NUtE with no penalties in grain protein. We conducted two field research experiments at difference sites during the 2015-16 and 2016-17 growing seasons in Kansas. In our experiment 1, we conducted on-farm experiments across three locations and two growing seasons in Kansas using 21 modern winter wheat genotypes grown under either standard (SM) or intensified management (IM) systems. Results showed that across all sites-years and genotypes, the IM increased yield by 0.9 Mg ha−1 relative to the SM. Even in the lowest yielding background condition, the IM outyielded SM, and expectedly, the yield response to IM increased with the achievable yield of the environment. The yield response of genotypes to IM was related to the responses of biomass between the two management systems rather than harvest index, strongly driven by improvements in grain number while independent of changes in grain weight, and related to improvements in N uptake. In our experiment 2, we evaluated the partial contribution of 14 management practices on grain yield and the accumulation of N, P, K and S during the growing season using a single bread-wheat genotype grown under four site-years. Fungicide was the main treatment affecting yield and nutrient uptake. Overall, all nutrients were accumulated at a similar proportion at each growth stage relative to their respective accumulation at the end of the season. Shoot concentration for IM seemed to maintain higher concentration of nutrients as compared to the SM control during the growing season. This was emphasized by the significant increase in nutrition indices for N and S from SM to IM control, indicating possible luxury uptake under IM. Hence, crop intensification strategies may alter nutrient uptake at the end of season, but will not affect timing and rate of uptake during the growing season.
Download or read book Wheat written by Brett F. Carver and published by John Wiley & Sons. This book was released on 2009-09-15 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat: Science and Trade is an up-to-date, comprehensive reference work designed to expand the current body of knowledge on this staple crop, incorporating new information made available by genetic advances, improvements in the understanding of wheat's biology, and changes in the wheat trade industry. Covering phylogeny and ontogeny, manipulation of the environment and optimal management, genetic improvement, and utilization and commercialization, the book focuses on the most economically significant diseases and impacts
Book Synopsis A.I.D. Research and Development Abstracts by :
Download or read book A.I.D. Research and Development Abstracts written by and published by . This book was released on 1973 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Ecology written by David J. Connor and published by Cambridge University Press. This book was released on 2011-04-28 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food security and environmental conservation are two of the greatest challenges facing the world today. It is predicted that food production must increase by at least 70% before 2050 to support continued population growth, though the size of the world's agricultural area will remain essentially unchanged. This updated and thoroughly revised second edition provides in-depth coverage of the impact of environmental conditions and management on crops, resource requirements for productivity and effects on soil resources. The approach is explanatory and integrative, with a firm basis in environmental physics, soils, physiology and morphology. System concepts are explored in detail throughout the book, giving emphasis to quantitative approaches, management strategies and tactics employed by farmers, and associated environmental issues. Drawing on key examples and highlighting the role of science, technology and economic conditions in determining management strategies, this book is suitable for agriculturalists, ecologists and environmental scientists.
Book Synopsis Management Strategies for Dual-purpose Winter Wheat Production by : Simeon Kaitibie
Download or read book Management Strategies for Dual-purpose Winter Wheat Production written by Simeon Kaitibie and published by . This book was released on 2002 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wheat written by Brett F. Carver and published by John Wiley & Sons. This book was released on 2009-06-23 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat: Science and Trade is an up-to-date, comprehensive reference work designed to expand the current body of knowledge on this staple crop, incorporating new information made available by genetic advances, improvements in the understanding of wheat's biology, and changes in the wheat trade industry. Covering phylogeny and ontogeny, manipulation of the environment and optimal management, genetic improvement, and utilization and commercialization, the book focuses on the most economically significant diseases and impacts
Book Synopsis Australian Journal of Agricultural Research by :
Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 2008 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Managing and Breeding Wheat for Organic Systems by : Muhammad Asif
Download or read book Managing and Breeding Wheat for Organic Systems written by Muhammad Asif and published by Springer Science & Business Media. This book was released on 2014-03-19 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetically uniform cultivars in many self-pollinated cereal crops dominate commercial production in high-input environments especially due to their high grain yields and wide geographical adaptation. These cultivars generally perform well under favorable and high-input farming systems but their optimal performance cannot be achieved on marginal/organic lands or without the use of external chemical inputs (fertilizers, herbicides and pesticides). Cereal breeding programs aim at evaluating candidate lines/cultivars for agronomic, disease and quality traits in a weed free environment that makes it impossible to identify traits conferring competitive ability against weeds. Moreover, quantification of competitive ability is a complex phenomenon which is affected by range of growth traits. Above (e.g. light) and below (e.g. water and nutrients) ground resources also influence competitiveness to a greater extent. Competitiveness is quantitatively inherited trait which is heavily influenced by many factors including genotype, management, environment and their interaction. Sound plant breeding techniques and good experimental designs are prerequisites for maximizing genetic gains to breed cultivars for organically managed lands. The brief is focused on breeding wheat for enhanced competitive ability along with other agronomic, genetic and molecular studies that have been undertaken to improve weed suppression, disease resistance and quality in organically managed lands. The examples from other cereals have also been highlighted to compare wheat with other cereal crops.
Book Synopsis Breeding Wheat for Improved Nutritional Quality by : Mary Joy Guttieri
Download or read book Breeding Wheat for Improved Nutritional Quality written by Mary Joy Guttieri and published by . This book was released on 2014 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat is a major staple cereal in human diets that provides nutritionally important minerals. Because grain mineral concentrations tend to decrease as wheat yields increase, breeding for yield improvement may have reduced nutritional quality. The objectives of this study were to survey grain mineral concentration in Great Plains hard winter wheat to assess: 1) the heritable variation for grain mineral concentrations in the germplasm pool; 2) the effects of more than 50 years of wheat breeding on mineral concentrations; and 3) opportunities to exploit the underlying physiological relationship between grain protein concentration (GPC) and grain mineral concentration to improve nutritional quality. Grain mineral concentrations were measured in a panel of 299 winter wheat genotypes grown in 2012 and 2013 in Oklahoma and Nebraska. Significant genetic variation persists within contemporary germplasm: among 93 cultivars released since 2000, Zn concentration max:min ratios ranged from 1.5 - 2.3. Within the subset of cultivars released from 1960 to 2014, grain yield increased 0.58 to 1.25 % yr-1, and Zn concentration decreased 0.15 to 0.26% yr-1, relative to the reference cultivar, `Scout 66.' The positive interrelationship between GPC and grain Fe and Zn concentrations could be exploited in a yield-neutral breeding strategy that selects genotypes based on grain protein deviation. Cd concentrations exceeded international standards in some genotypes. We found highly repeatable differences in grain Cd among commercial cultivars across 11 Nebraska trials. Grain Cd concentration was predicted by concentration in above-ground plant tissues. Genome wide association scans using high density SNP markers identified associations of grain Cd with SNP markers on 5AL. Cd-associated SNP markers are in a homoeologous region to the Cdu1 locus on 5BL in durum wheat. Grain Zn concentration was not well predicted by plant concentration at anthesis, and SNP marker associations with Zn were weak and inconsistent across trials. Selection for reduced grain Cd concentration without decreased grain Zn concentration has high potential for success within Great Plains hard winter wheat.
Book Synopsis Exploring GxExM Synergies in World-Wide Wheat Production and the Opportunities for International Collaboration by : Brian L. Beres
Download or read book Exploring GxExM Synergies in World-Wide Wheat Production and the Opportunities for International Collaboration written by Brian L. Beres and published by Frontiers Media SA. This book was released on 2020-12-14 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis Recent Advances in Grain Crops Research by : Farooq Shah
Download or read book Recent Advances in Grain Crops Research written by Farooq Shah and published by BoD – Books on Demand. This book was released on 2020-02-26 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cultivation of grain crops has been rightly recognized as one of the main drivers in shaping human civilizations. Considering their key role in fulfilling a major portion of the global food needs, grain crops are the most widely grown crops around the world. Unfortunately, like many other agronomic crops, grain crops are quite vulnerable to climate change and this has posed multifaceted threats to agricultural sustainability. To add to the menace, the deteriorating quantity and quality of both land and water as primary factors of production are further aggravating the scenario. Confronting such challenges demands innovative adaptation strategies through intensification of grain crop production that can ensure grain self-sufficiency worldwide.
