Abstract: The genotype by environment interactions, and the stability performances of agronomic traits and their combined trait were analysed for hybrid rices in 1991 and 1992 with the methods proposed by Zhu et al. The results indicated that there existed large year by location interactions for most of the studied traits, and genotype by year or genotype by location interactions for some traits. The significant differences among 15 hybrid rices agronomic traits and combined trait showed that the yield for five hybrids (Guangyou 4, Shanyou 63, Ⅱ you 62-16 et al. ) was high, and combined trait value for Shanyou 63, W6154/Tesan'ai and Maxieyou 63 was high too. The single traits and combined trait of hybrids which came from different breeding units were compared.

Key words: combined trait, agronomic trait, genotype by environment interaction, hybrid rice

摘要： 以1991 年和1992 年籼型杂交水稻区域试验的中稻迟熟组的数据为资料，采用朱军等提出的方法分析产量、生育期、米质和抗逆性等性状的基因型×环境互作，以及单一性状和综合性状的稳定性表现。方差分析的结果表明，大多数性状存在年份×地点的互作，一些性状存在较大的基因型×地点互作和基因型×年份的互作。对籽粒产量和综合性状的组合间比较表明，广优4号、汕优63、Ⅱ优62-16、W6154/特三矮和汕A/CDR22五个组合的产量较高。汕优63、W6154/特三矮和马协优63三个组合的综合性状的表现较好。对不同地区选育的品种产量和综合性状进行了线性比较。此外还分析了各组合产量和综合性状对环境指数的反应敏感程度和稳定性表现。

关键词: 综合性状, 基因型×环境互作, 杂交水稻