Targeting sorghum improvement in drought-prone environments: Approaches and progress

Muchow, R C and Cooper, M and Bidinger, F R and Hammer, G L and Borrell, A K and Chapman, S C (1996) Targeting sorghum improvement in drought-prone environments: Approaches and progress. In: Proceedings of the International Conference on Genetic Improvement of Sorghum and Pearl Millet, 1996, Lubbock, Texas, USA.

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Grain sorghum is grown in environments of highly variable water supply, both within and between seasons. This variability, coupled with associated genotype-by-environment (GxE) interactions, results in unclear definition of both target environment(s) and traits that may be used as selection criteria, causing slow progress in breeding for drought resistance. This paper reviews new approaches to characterize environments in terms of the incidence of water deficits and to assess the value of traits for improvement of drought resistance. Sorghum simulation models are powerful tools to characterize types of environmental challenges and their frequency of occurrence at different locations. Models also are being used to assess hypotheses about trait action and their value, and to develop optimal combinations of traits for different environmental challenges. Further research involving physiologists, agronomists, and plant breeders using integrated systems analysis will realize the potential of these approaches and improve the efficiency of selection in drought-prone environments.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Sorghum Improvement, Drought, Grain sorghum, Drought Resistance
Subjects: Mandate crops > Sorghum
Others > Drought
Depositing User: Mr Ramesh K
Date Deposited: 02 Jun 2017 05:48
Last Modified: 02 Jun 2017 05:48
Acknowledgement: UNSPECIFIED
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