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Effectiveness Of Selection Under Stress Or Low Stress Environments For Grain Yield In A Sorghum Population Sorghum Bicolor L Moench
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Book Synopsis Effectiveness of Selection Under Stress Or Low Stress Environments for Grain Yield in a Sorghum Population (Sorghum Bicolor L. Moench) by : Olga A. Marinesco
Download or read book Effectiveness of Selection Under Stress Or Low Stress Environments for Grain Yield in a Sorghum Population (Sorghum Bicolor L. Moench) written by Olga A. Marinesco and published by . This book was released on 1992 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effectiveness of Phenotypic Selection Based Upon Selected Components of Yield in Grain Sorghum, Sorghum Bicolor (L.) Moench by : Jimmy Dale Pearson
Download or read book Effectiveness of Phenotypic Selection Based Upon Selected Components of Yield in Grain Sorghum, Sorghum Bicolor (L.) Moench written by Jimmy Dale Pearson and published by . This book was released on 1973 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Conference on Genetic Improvement of Sorghum and Pearl Millet by :
Download or read book Proceedings of the International Conference on Genetic Improvement of Sorghum and Pearl Millet written by and published by . This book was released on 1997 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selection for Grain Yield Under Water Stress in Sorghum [Sorghum Bicolor (L.) Moench] by : Mohamed Elkheir Abdelrahman
Download or read book Selection for Grain Yield Under Water Stress in Sorghum [Sorghum Bicolor (L.) Moench] written by Mohamed Elkheir Abdelrahman and published by . This book was released on 1985 with total page 186 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 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1977 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological and Genetic Characterization of Sorghum Exposed to Early Season Chilling and Terminal Heat and Drought Stress by : Anuj Chiluwal
Download or read book Physiological and Genetic Characterization of Sorghum Exposed to Early Season Chilling and Terminal Heat and Drought Stress written by Anuj Chiluwal and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum (Sorghum bicolor (L.) Moench) is one of the hardiest crop to abiotic stresses compared with other grain crops. However early stage chilling, terminal heat and drought stress are three most damaging abiotic stresses that have limited sorghum productivity in the US Great plains and other locations having similar environmental conditions. Three studies were conducted with an overall goal aimed at increasing grain sorghum's resilience to harsh climatic conditions. In the first study, four promising chilling stress tolerant sorghum advanced breeding lines, a known early stage chilling tolerant Chinese landrace (Shan Qui Red - SQR) and a susceptible US elite cultivar (RTx430) as checks were assessed for chilling tolerance during emergence and early growth under field and controlled environments. Aerial phenotyping using unmanned aircraft systems (UAS) fitted with multispectral camera was used to capture reflectance-based vegetation indices (NDVI and NDRE) in field experiments. Some advanced breeding lines with superior agronomic background also recorded significantly better emergence, seedling growth and vigor compared to SQR under chilling conditions. Aerial phenotyping indices from images taken between 30 and 60 days after emergence were consistently correlated with destructive measurements under early plantings, indicating their effectiveness in differentiating chilling responses. Second study was conducted to understand physiological mechanisms inducing heat stress resilience in sorghum during flowering. A diverse set of sorghum inbreds and selected hybrids were tested under greenhouse, growth chamber facilities and field conditions. A highly conserved early-morning-flowering mechanism was observed across all the inbreds and hybrids, with the peak anthesis wherein >90% of florets completed flowering within 30 min after dawn. The conserved response was consistent even under drought stress and heat stress exposure imposed at different times of the day. Our findings report a novel heat escaping early-morning-flowering mechanism effectively employed by sorghum to minimize heat stress impact at anthesis. Another experiment with sequential increase in daytime temperature treatments suggest heat stress induced loss in pollen viability to be a key factor resulting in reduced seed-set and grain yield. The findings suggest heat stress could have a greater impact on post-pollen germination processes such as fertilization, embryo formation and development. We identified a heat tolerant genotype "Macia" which appears to be a promising donor for developing improved heat tolerant sorghum hybrids. In the third study, a bi-parental recombinant inbred lines (RILs) mapping population developed from elite post flowering drought susceptible cultivar (RTx430) and a known drought tolerant cultivar (SC35) were evaluated under wide spectrum of environments and moisture conditions. Several novel and major QTL for grain yield, panicle neck diameter, effective quantum yield of photosystem II and chlorophyll content were identified. The genomic regions and the candidate genes within these regions can potentially help in improving source and sink dynamics in sorghum under diverse environments. The findings from these studies will complement ongoing efforts in developing future sorghum with enhanced resilience to different abiotic stresses that continue to limit sorghum productivity.
Book Synopsis Food Security in Nutrient-Stressed Environments: Exploiting Plants’ Genetic Capabilities by : J.J. Adu-Gyamfi
Download or read book Food Security in Nutrient-Stressed Environments: Exploiting Plants’ Genetic Capabilities written by J.J. Adu-Gyamfi and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultimate success in exploiting the genetic capabilities of plants to grow in nutrient-stressed environments of the semi-arid tropics (SAT) requires a holistic view of food systems to ensure that genetic selections for improved yields on nutrient-poor soils will actually be adopted by farmers. This book sets out to address the important issue of how physiological mechanisms of nutrient uptake can best be combined with genetic options to improve the adaptation of crops to low-nutrient availability, thereby enhancing productivity of nutrient poor soils in the semi-arid tropics. The book examines (i) the sustainability of breeding for low-nutrient environments from the viewpoint of three interrelated disciplines; physiology, breeding, and socio-economics, (ii) candidate mechanisms and physiological traits to enhance uptake and utilization efficiencies, (iii) genetic approaches for manipulation of crop plants to enhance root exudation and access nutrients in the rhizosphere, and (iv) field practices and farmers' preferences for crop varieties grown in low-nutrient environments. Finally, the role of modelling in improving nutrient efficiency in cropping systems, recommendations for future research needs and strategies were highlighted. Attended by 50 international participants, this book is the outcome of the workshop held at ICRISAT-India during 27-30 September 1999 to mark the culmination of the Government of Japan/ICRISAT Project.
Book Synopsis The Impact of Antagonistic Versus Synergistic Selection and Per Se Performance on Adaptation of a Grain Sorghum Population by : Gabriel Alves Maciel
Download or read book The Impact of Antagonistic Versus Synergistic Selection and Per Se Performance on Adaptation of a Grain Sorghum Population written by Gabriel Alves Maciel and published by . This book was released on 1996 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: As world population increases and arable land for agricultural production either decreases or is shifted into more adverse environment, a need has arisen for the effective breeding of new cultivars of existing crop species adapted to these new conditions. Thus, the objectives of this study, were to assess the impact of selection for increased grain yield in a single low-productivity environment (antagonistic selection) versus a high productivity environment (synergistic selection); the impact of selection using per se performance (S1 families) for two cycles in a grain sorghum random-mating population, KP9B, for their effectiveness to develop population of lines with improved grain yield and reduced environmental sensitivity; to evaluate the effectiveness ofantagonistic versus synergistic selection in changing yield and its associated trait components after two cycles of S1 family recurrent selection, and to consider possible morpho physiological aspects of different traits on adaptation of KP9B population. In 1993 and 1994, the 100 S1, 50 full-sib, and 50 half-sib families from each population (C0, C2Gc, and C2MD) were evaluated in two replications of a blocks-in-replication design with 4 blocks of 26 entries for the S1 families (four commercial hybrids used as checks) and 2 blocks of 26 entries for the full-sib and half-sib families (two commercial hybrids used as checks). Four deverse locations were used in the experiments: Garden City, KS; Hesston, KS; Mead, NE, and Caruaru, PE, Brazil. Results showed (...).
Book Synopsis Effects of Water Stress and Night Temperature on Grain Yield of Sorghum Bicolor (L.) Moench Under Field Conditions by : Josè Francísco Gòmez B.
Download or read book Effects of Water Stress and Night Temperature on Grain Yield of Sorghum Bicolor (L.) Moench Under Field Conditions written by Josè Francísco Gòmez B. and published by . This book was released on 1982 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Water Stress on the Performance of Sorghum Bicolor (L.) Moench Cultivars by : Balaji Manmohan Nukal
Download or read book Influence of Water Stress on the Performance of Sorghum Bicolor (L.) Moench Cultivars written by Balaji Manmohan Nukal and published by . This book was released on 1989 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Breeding Sorghum for Diverse End Uses by : Aruna C
Download or read book Breeding Sorghum for Diverse End Uses written by Aruna C and published by Woodhead Publishing. This book was released on 2018-08-22 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breeding Sorghum for Diverse End Uses is a comprehensive overview of all significant global efforts for the genetic improvement of sorghum, a major crop of many semi-arid nations that is suitable for a huge range of uses, from human food, to biofuels. Split into two main sections, the book initially reviews the genetic suitability of sorghum for breeding, also providing the history of the genetic improvement of the grain. Finally, other sections look at specific breeding programs that could be improved in a number of areas, including human food, animal feed and industrial usage. Readers in academics, research, plant genetics and sorghum development will find this resource of great value. In addition, it is essential reading for engineers who utilize sorghum for food, feed and industrial materials in industry. Provides information on key advances in the genetic makeup of sorghum Allows plant breeders to apply this research to effectively breed new strains of sorghum that are dependent on final usage goals Includes the latest findings in each section to orient researchers to plans for future genetic enhancement
Download or read book Agronomy Abstracts written by and published by . This book was released on 1992 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Relationship of Germination Parameters to Field Adaptation and Heat Stress Tolerance in Sorghum Bicolor (L.) Moench by : John Arthur Mann
Download or read book The Relationship of Germination Parameters to Field Adaptation and Heat Stress Tolerance in Sorghum Bicolor (L.) Moench written by John Arthur Mann and published by . This book was released on 1983 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Progress Report on Inheritance and Improvement of Protein Quality and Content in Sorghum Bicolor (L.) Moench by :
Download or read book Research Progress Report on Inheritance and Improvement of Protein Quality and Content in Sorghum Bicolor (L.) Moench written by and published by . This book was released on 1977 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Breeding in Wheat, Maize and Sorghum by : Mohammad Anwar Hossain
Download or read book Molecular Breeding in Wheat, Maize and Sorghum written by Mohammad Anwar Hossain and published by CABI. This book was released on 2021-06-30 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global population is projected to reach almost 10 billion by 2050, and food and feed production will need to increase by 70%. Wheat, maize and sorghum are three key cereals which provide nutrition for the majority of the world's population. Their production is affected by various abiotic stresses which cause significant yield losses. The effects of climate change also increase the frequency and severity of such abiotic stresses. Molecular breeding technologies offer real hope for improving crop yields. Although significant progress has been made over the last few years, there is still a need to bridge the large gap between yields in the most favorable and most stressful conditions.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1991 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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