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Physiological And Agronomic Responses Of A Grain Sorghum Sorghum Bicolor L Moench Hybrid To Elevated Night Temperatures
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Book Synopsis Physiological and Agronomic Responses of a Grain Sorghum (Sorghum Bicolor (L.) Moench) Hybrid to Elevated Night Temperatures by : V. B. Ogunlela
Download or read book Physiological and Agronomic Responses of a Grain Sorghum (Sorghum Bicolor (L.) Moench) Hybrid to Elevated Night Temperatures written by V. B. Ogunlela and published by . This book was released on 1979 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two greenhouse and three field experiment were conducted to study the effects of elevated night temperatures on the yield and growth of a grain sorghum (Sorghum bicolor (L.) Moench) hybrid. The genotype used in these investigations was the 'RS 671' (Redlan x Tx 415), an open-pedigree temperate-adapted grain sorghum. The phenological growth phase during which temperature treatments were imposed was the panicle development (GS-2) period. Experiment I, II (greenhouse) and III (field) were designed to determine the response of grain sorghum to two elevated night temperatures and the growth stage during GS-2 period when the plant is most sensitive to elevated temperatures. Experiment IV and V (field) were conducted with the same objectives as those for Experiment I, II and III and also to determine the effects of artificial preconditioning on the plant's response to elevated night temperatures. Experiments I - Plants were exposed to 26.5 and 32 C night temperatures at 4-day durations commencing from florest differentiation through bloom. The two elevated night temperatures caused significant reduction in grain yield and yield components except seed size that was enhanced (12%) by the 32 C treatment. Approximately 19%, 21%, 24% and 20% reductions in panicle dry weight, grain yield per plant, number of seeds per panicle and grams of grain/GS-3 day/plant, respectively, were caused by the 32 C treatment. The 26,5 C treatment also caused reduction in these variables but to much lesser degrees. Numbers of days to (...).
Book Synopsis Physiological and Agronomic Responses of a Grain Sorghum [Sorghum Bicolor (L.) Moench] Hybrid to Elevated Night Temperatures by : Vincent B. Ogunlela
Download or read book Physiological and Agronomic Responses of a Grain Sorghum [Sorghum Bicolor (L.) Moench] Hybrid to Elevated Night Temperatures written by Vincent B. Ogunlela and published by . This book was released on 1979 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiologic and Agronomic Responses of Tropically and Temperately Adapted Grain Sorghum (Sorghum Bicolor [L.] Moench) Hybrids Under Irrigation and Nonirrigation by : Charanjit Singh Sodhi
Download or read book Physiologic and Agronomic Responses of Tropically and Temperately Adapted Grain Sorghum (Sorghum Bicolor [L.] Moench) Hybrids Under Irrigation and Nonirrigation written by Charanjit Singh Sodhi and published by . This book was released on 1982 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crop Reactions To Water And Temperature Stresses In Humid, Temperate Climates by : Paul J Kramer
Download or read book Crop Reactions To Water And Temperature Stresses In Humid, Temperate Climates written by Paul J Kramer and published by CRC Press. This book was released on 2019-09-10 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published 1983. Aimed at improving agricultural production by providing a better under· standing of the interaction between crops and the environment, this book presents the latest research findings on the effects of water and temperature stresses on plants in humid temperate regions. It also covers management practices and breeding programs that may reduce crop sensitivity to the vagaries of weather.
Book Synopsis Plant Breeding Reviews, Volume 10 by : Jules Janick
Download or read book Plant Breeding Reviews, Volume 10 written by Jules Janick and published by John Wiley & Sons. This book was released on 2010-04-22 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of a series which presents papers of topical interest relating to the breeding of plants important to agriculture and horticulture.
Book Synopsis Symposium on Potential Productivity of Field Crops Under Different Environments by : W. H. Smith
Download or read book Symposium on Potential Productivity of Field Crops Under Different Environments written by W. H. Smith and published by Int. Rice Res. Inst.. This book was released on 1983 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological basis, physical environment, and crop productivity; Growth and yield of field crops; Crop productivity under different environments; Increasing productivity through cropping systems.
Book Synopsis Proceedings, Workshop on Weather and Climate Research Needs for Agriculture in the Nineties by :
Download or read book Proceedings, Workshop on Weather and Climate Research Needs for Agriculture in the Nineties written by and published by . This book was released on 1985 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Congress of Plant Physiology, New Delhi, India, February 15-20, 1988 by : S. K. Sinha
Download or read book Proceedings of the International Congress of Plant Physiology, New Delhi, India, February 15-20, 1988 written by S. K. Sinha and published by . This book was released on 1990 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agrometeorology of Sorghum and Millet in the Semi-arid Tropics by : International Crops Research Institute for the Semi-Arid Tropics
Download or read book Agrometeorology of Sorghum and Millet in the Semi-arid Tropics written by International Crops Research Institute for the Semi-Arid Tropics and published by . This book was released on 1984 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiologic and Morphologic Investigations of Grain Sorghum [Sorghum Bicolor (L.) Moench]: I. Vascularization. II. Response to Internal Drought Stress by : Joe H. Hultquist
Download or read book Physiologic and Morphologic Investigations of Grain Sorghum [Sorghum Bicolor (L.) Moench]: I. Vascularization. II. Response to Internal Drought Stress written by Joe H. Hultquist and published by . This book was released on 1973 with total page 280 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.
Download or read book Crop Physiology Abstracts written by and published by . This book was released on 1982-07 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological Basis of Hybrid Variation for Grain Yield and Nitrogen Concentration of Grain Sorghum (Sorghum Bicolor (L.) Moench) Grown Under Different Nitrogen Levels by : Akihiko Kamoshita
Download or read book Physiological Basis of Hybrid Variation for Grain Yield and Nitrogen Concentration of Grain Sorghum (Sorghum Bicolor (L.) Moench) Grown Under Different Nitrogen Levels written by Akihiko Kamoshita and published by . This book was released on 1996 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physiology of Tropical Field Crops by : Peter R. Goldsworthy
Download or read book The Physiology of Tropical Field Crops written by Peter R. Goldsworthy and published by John Wiley & Sons. This book was released on 1984 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tropical environment. The water relations of crops. Root morphology and nutrient uptake. Crop growth and development: vegetative phase. Crop growth and development: the reproductive phase. Tropical maize. Sorghum. Pennisetum millet. Common bean. Cowpea. Pigeonpea. Chickpea. Groundnut. Cotton. Cassava. Sweet potato. Yam. Cocoyam. Tobacco.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1987 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological Aspects of Drought Resistance in Sorghum (Sorghum Bicolor L. Moench) Hybrids which Differ in Leaf Retention During Grain-fill by : Brenda Lynn McIntyre
Download or read book Physiological Aspects of Drought Resistance in Sorghum (Sorghum Bicolor L. Moench) Hybrids which Differ in Leaf Retention During Grain-fill written by Brenda Lynn McIntyre and published by . This book was released on 1983 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agronomic Performance of Grain Sorghum Hybrids [Sorghum Bicolor (L.) Moench] Under Several Environments as a Function of Their Male Parent Selection by : Mohamed Samy Abd El-Fatth Mostafa
Download or read book Agronomic Performance of Grain Sorghum Hybrids [Sorghum Bicolor (L.) Moench] Under Several Environments as a Function of Their Male Parent Selection written by Mohamed Samy Abd El-Fatth Mostafa and published by . This book was released on 1986 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: