四川省凉山州小麦新品种(系)产量稳定性评价

应用Ｅｂｅｒｈａｒｔ＆Ｒｕｓｓｅｌ模式估算了１９９５年四川凉山州８个小麦新品种（系）在７个不同生态区的产量稳定性，表明：品种（系）产量存在极显著的基因型×环境互作。西辐五号为高产稳定型品种，９１γ—３６３和８８—１６—２为中产稳定型品种（系）。７５５９和３０３３的基因型×环境互作同环境的关系存在非线性关系。基因型×环境互作效应的稳定性方差σ２ｉ分析表明，７５５９为高产不稳定型品种（系）。阐明了回归分析模型是测定基因型对于环境响应稳定性的一种有效方法，为凉山州选择小麦生产品种提供了依据

EVALUATION ON YIELD STABILITY OF NEW WHEAT CULTIVARS (STRAINS) IN LIANGSHAN, SICHUAN

This paper, by using the method of stability parameters suggested by Eberhart, S.A and W.A. Russell in 1966, appraises the stability parameters on yield of 8 new wheat cultivars or strains tested at 7 different ecological sites in 1995's Liangshan Sichuan wheat regional test. The results showed highly significant genotype (G) environment (E) interaction effect for yield. `Xifu 5' possessed properties of high yield and stability,`91γ 363'and`88 16 2'presented middle yield and stability. No linear relationships between G E interaction and E for `7559' and `3033' were found. The analysis on stability variance of their G E interaction effects indicated that `7559' was a high yield and no stable variety,but`3033' with middle yield and no stability. It was suggested that the application σi 2 of regression model for measuring the stability of the response of genotype at various environments is effective and informative.