水稻品种区域试验的品种×环境互作及其与气候因子的关系

Genotype×Environment Interaction and Its Relationship to Climate Factors in Rice Regional Trial

利用 AMMI模型分析了 1 997年南方水稻区试华南早籼组的数据 ,并着重探讨了 G×E互作与气候的相互关系 ,解释气候对 G×E互作的影响 ,以鉴别并利用具有有利 G×E互作的品种。分析结果表明 ,气候因子中主要是秧田期的日照和抽穗灌浆期的降雨影响参试地点的产量水平 ;而影响 G×E互作的主要气候因子是气温 ,其次是

The data of South China early maturity group of indica rice in China's southern rice regional trial in 1997 was analyzed with AMMI models and corresponding biplots. The genotypes and environments(G×E) interaction correlation analysis with external climate factors were given, and the varieties with large positive interaction were identified. The findings indicated that location main effect are significantly positively correlated with radiation during rice seedling stage and rainfall during heading and filling stage. Temperature was the leading climate factor, while rainfall in July was the second one, affecting G×E interaction.