Effect of moisture stress on sorghum yield and its components
作者:
W.G. Wenzel,
期刊:
South African Journal of Plant and Soil
(Taylor Available online 1999)
卷期:
Volume 16,
issue 3
页码: 153-157
ISSN:0257-1862
年代: 1999
DOI:10.1080/02571862.1999.10635002
出版商: Taylor & Francis Group
关键词: Moisture stress;sorghum;yield components.
数据来源: Taylor
摘要:
A sample of 48 sorghum varieties and inbred lines were planted in randomized block designs in two trials, one of which was irrigated. The effect of moisture stress on grain yield, tillering, seeds per ear, ear mass, seeds per plot, thousand seed mass, stover mass, biomass and harvest index was quantified for each genotype. Moisture stress resulted in increased tillering while the means of all other characteristics were reduced. Increased tillering caused an increase in grain yield under dryland conditions in those genotypes that indicated least reductions in seed number per ear and seed mass. The value of this screening method which includes both yield and drought resistance is discusséd with respect to developing improved cultivars for the target environment.
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