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Induced water stress effects on grain yield and yield components of twelve maize (Zea mays L.) genotypes

机译：水分胁迫对12个玉米基因型的产量和产量构成的影响

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摘要

Three maize populations developed for their ability to withstand drought and salinity, and their reciprocal F1 crosses were tested under induced water stress and normal moisture conditions. Two commercial hybrids and one open-pollinated variety were also included in the study. The objective was to investigate yield and its components under induced drought. Significant differences in yield were observed in both irrigation treatments. DeKalb 689, one of the commercial hybrids, outyielded all the other entries under wet conditions, whereas under dry conditions the open-pollinated variety, Page Ranch, had the highest yield. Significant differences between populations and their hybrids were also observed. Significant correlations were noted in grain yield as observed in wet and dry conditions and the reduction in the number of ears per plant was positively correlated with the reduction in grain yield resulting from drought.
机译：三个玉米种群因其耐干旱和盐碱的能力而发展，并在诱导的水分胁迫和正常湿度条件下测试了它们的互作F1杂交。该研究还包括两个商业杂种和一个开放授粉品种。目的是研究诱导干旱下的产量及其组成。在两种灌溉处理中均观察到产量的显着差异。作为商品杂种之一的DeKalb 689在潮湿条件下的产量高于所有其他品种，而在干燥条件下，开放授粉品种Page Ranch的产量最高。还观察到种群及其杂种之间的显着差异。在潮湿和干燥条件下观察到的谷物产量都具有显着的相关性，单株穗数的减少与干旱导致的谷物产量的减少呈正相关。

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    Fall Sidi 1951-;

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  • 年度 1991
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