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选用 2 0个小麦品种 (系 ) ,采用典范相关分析方法 ,分析了小麦冠层结构与产量及其构成因素的相关性。结果表明 ,产量与其构成因素和植株特性呈显著相关 ,穗粒数和穗数对产量和单株产量的贡献均较大 ,干物重和株高对产量的贡献最大 ;叶长与产量呈显著相关 ,倒三叶长对产量的影响最大 ,对单株产量的影响 3片叶相近 ;茎壁厚、节间长与单株产量呈显著相关。产量构成因素与各冠层结构特性均存在显著的典范相关。茎壁厚和节间长与茎粗均相关显著 ;在叶片特性中 ,除叶宽与披垂度相关不显著外 ,其余各组性状间均相关显著
Twenty typical wheat cultivars (lines) were selected and the Canonical Correlation Analysis method was used to analyze the correlation between the canopy structure of wheat and its yield and its components. The results showed that there was a significant correlation between yield and its components and plant characteristics. The number of spikelets per panicle and spike number contributed more to the yield and yield per plant, while the dry weight and plant height contributed the most to the yield. Leaf length was significantly correlated with the yield The effect of inverted clover length on yield was greatest, and the effect on yield per plant was similar to that of three leaves. There was a significant correlation between stem thickness and internode length and yield per plant. Yield components and each canopy structure characteristics are significant and canonical correlation. Stem thickness and internode length and stem diameter were significant correlation; leaf characteristics, in addition to the leaf width and the degree of palliation was not significant, the other groups were significantly correlated between traits