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首页> 外文期刊>Crop Research >Determination of the best selection criteria in Iranian bread wheat (Triticum aestivum L.) genotypes under different environments.
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Determination of the best selection criteria in Iranian bread wheat (Triticum aestivum L.) genotypes under different environments.

机译：确定不同环境下伊朗面包小麦（Triticum aestivum L.）基因型的最佳选择标准。

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摘要

The morphological and morpho-physiological traits of 567 bread wheat genotypes under drought and non-drought stress conditions were studied in Iran. Factor analysis based on principal component analysis and varimax rotation indicated that 4 important factors accounted for approximately 89.6 and 87.5% of the total variation under drought and non-drought stress conditions, respectively. Under drought stress, the first factor, which accounted for 42.8% of the total variation between traits, was significantly related to spike yield and yield components. Therefore, this factor was regarded as spike seed yield factor. The other 3 factors under drought stress, which accounted for 20, 17 and 10% of the variation between traits, were identified as plant seed yield, spike density and assimilate transmission factors, respectively. Under non-drought stress conditions, the first factor, which accounted for 35% of the total variation between traits, was significantly related with plant and spike seed yield, plant and spike harvest indexes, number of seeds per spike and plant height. This factor was regarded as plant seed yield factor. The other factors under non-drought stress condition, which accounted for 25.5, 16.6 and 11.0% of the variation between traits, were determined to be production, assimilate transmission and spike density factors, respectively.
机译：在伊朗研究了干旱和非干旱胁迫条件下567个面包小麦基因型的形态和形态生理特性。基于主成分分析和方差极大值旋转的因子分析表明，在干旱和非干旱胁迫条件下，4个重要因子分别占总变异的约89.6和87.5％。在干旱胁迫下，构成性状间总变异的42.8％的第一个因素与穗产量和产量组成显着相关。因此，该因子被认为是穗种子产量因子。干旱胁迫下的其他三个因子分别占植物性状之间的变异的20％，17％和10％，分别确定为植物种子产量，穗密度和同化传播因子。在非干旱胁迫条件下，构成性状间总变异的35％的第一个因素与植物和穗状花序的产量，植物和穗状花序的收获指数，每个穗状花序的种子数量和株高显着相关。该因子被认为是植物种子产量因子。确定了在非干旱胁迫条件下其他性状的构成要素，分别占性状间变异的25.5％，16.6％和11.0％，分别是产量，同化率和穗密度因子。

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