Author: V. B. Ogunlela
Publisher:
ISBN:
Category :
Languages : en
Pages : 203
Book Description
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 (...).
Physiological and Agronomic Responses of a Grain Sorghum (Sorghum Bicolor (L.) Moench) Hybrid to Elevated Night Temperatures
Author: V. B. Ogunlela
Publisher:
ISBN:
Category :
Languages : en
Pages : 203
Book Description
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 (...).
Publisher:
ISBN:
Category :
Languages : en
Pages : 203
Book Description
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 (...).
Physiological and Agronomic Responses of a Grain Sorghum [Sorghum Bicolor (L.) Moench] Hybrid to Elevated Night Temperatures
Physiologic and Agronomic Responses of Tropically and Temperately Adapted Grain Sorghum (Sorghum Bicolor [L.] Moench) Hybrids Under Irrigation and Nonirrigation
Author: Charanjit Singh Sodhi
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
Book Description
Crop Reactions To Water And Temperature Stresses In Humid, Temperate Climates
Author: Paul J Kramer
Publisher: CRC Press
ISBN: 0429724462
Category : Science
Languages : en
Pages : 374
Book Description
First published 1983. Aimed at improving agricultural production by providing a better underĀ· 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.
Publisher: CRC Press
ISBN: 0429724462
Category : Science
Languages : en
Pages : 374
Book Description
First published 1983. Aimed at improving agricultural production by providing a better underĀ· 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.
Plant Breeding Reviews, Volume 10
Author: Jules Janick
Publisher: John Wiley & Sons
ISBN: 0470650001
Category : Science
Languages : en
Pages : 386
Book Description
Part of a series which presents papers of topical interest relating to the breeding of plants important to agriculture and horticulture.
Publisher: John Wiley & Sons
ISBN: 0470650001
Category : Science
Languages : en
Pages : 386
Book Description
Part of a series which presents papers of topical interest relating to the breeding of plants important to agriculture and horticulture.
Symposium on Potential Productivity of Field Crops Under Different Environments
Author: W. H. Smith
Publisher: Int. Rice Res. Inst.
ISBN: 9711041146
Category : Agricultural productivity
Languages : en
Pages : 533
Book Description
Biological basis, physical environment, and crop productivity; Growth and yield of field crops; Crop productivity under different environments; Increasing productivity through cropping systems.
Publisher: Int. Rice Res. Inst.
ISBN: 9711041146
Category : Agricultural productivity
Languages : en
Pages : 533
Book Description
Biological basis, physical environment, and crop productivity; Growth and yield of field crops; Crop productivity under different environments; Increasing productivity through cropping systems.
Proceedings, Workshop on Weather and Climate Research Needs for Agriculture in the Nineties
Proceedings of the International Congress of Plant Physiology, New Delhi, India, February 15-20, 1988
Crop Physiology Abstracts
Agrometeorology of Sorghum and Millet in the Semi-arid Tropics
Author: International Crops Research Institute for the Semi-Arid Tropics
Publisher:
ISBN:
Category : Arid regions agriculture
Languages : en
Pages : 336
Book Description
Publisher:
ISBN:
Category : Arid regions agriculture
Languages : en
Pages : 336
Book Description