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首页> 外文期刊>International Journal of Biosciences >Investigation of traits correlations and path analysis of barley (Hordeum Vulgare L.) seed yield under terminal drought-stress conditions
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Investigation of traits correlations and path analysis of barley (Hordeum Vulgare L.) seed yield under terminal drought-stress conditions

机译：干旱胁迫条件下大麦种子产量性状相关性及通径分析

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摘要

In order to evaluate most important traits affecting grain yield of ten barley genotypes under stress and non-stress conditions, a field experiment was conducted similarly in 2010-2011, at University research farm of Karaj Azad Islamic (35o 43′ N latitude, 50o 56′ E longitude, 1160 m altitude). The experiments were laid out in split plot using randomized complete block design with four replications. Main plots were in two levels; full irrigation and drought stress (terminal irrigation at ear appearance). Ten barley genotypes also used as sub plot treatments. There weresignificant correlation amonggrain yield, fertile tillers number, days to maturity, thousand grain weight, straw yield, biomass and harvest index also inoculated days to heading negatively in two conditions. Results of stepwise regression revealed that 4 traits: fertile tillers number, harvest index, Biomassand straw yield (in the irrigated condition) could explain almost 98 percent of grain yield trait variation. Results of path analysis showed that inoculated biomass had the most direct effect (1.73) on grain in stress condition. Based on obtained results it can be suggested thesetraits: fertile tillers number, biomass and straw yield in stress and non-stress conditions
机译：为了评估在胁迫和非胁迫条件下影响十个大麦基因型谷物产量的最重要特征，2010-2011年，在Karaj Azad Islamic大学研究农场（北纬35o 43′，北纬50o 56）进行了类似的田间试验。 '经度，海拔1160 m）。使用四次重复的随机完全区组设计，将实验布置在分割图中。主要地块分为两个层次。充分灌溉和干旱胁迫（耳朵出现末梢灌溉）。十种大麦基因型也用作亚图处理。在两种条件下，接种量均呈负相关，籽粒产量，可耕分number数，成熟天数，千粒重，稻草产量，生物量和收获指数之间也存在显着相关。逐步回归的结果表明，可耕分：，收获指数，生物量和秸秆产量（在灌溉条件下）这四个性状可以解释几乎98％的谷物产量性状变异。路径分析结果表明，接种生物量对胁迫条件下谷物的影响最直接（1.73）。根据获得的结果，可以提出以下特征：胁迫和非胁迫条件下的可耕分，数，生物量和秸秆产量

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