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采用 Eberhart & Russell 模式及聚类分析方法,比较分析了14个冬小麦 F_1杂种和10个纯系(亲本)品种在5种不同地点籽粒产量的基因型×环境互作及其稳定性。结果表明,在基因型×环境互作的模式与性质上,杂交种和纯系品种均主要表现为非线性响应,但互作的程度杂交种明显小于纯系品种。杂交种的产量表现比纯系品种稳定。在产量响应上,纯系品种对有利环境条件的反应比杂交种更为敏感。回归分析和聚类分析法各有所长,综合运用,效果更好。
Using Eberhart & Russell model and cluster analysis, the genotype × environment interactions and their stability of 14 winter wheat F_1 hybrids and 10 pure lines (parent) cultivars at five different locations were comparatively analyzed. The results showed that the hybrids and pure lines showed non-linear response in the pattern and nature of genotype × environment interactions, but the degree of interaction was significantly less than that in pure lines. Hybrids yield more stable than pure lines. In response to yield, purebreds responded more favorably to environmental conditions than hybrids. Regression analysis and cluster analysis have their own strengths, comprehensive utilization, the effect is better.