摘要
以近年来生产上的 5个不育系和 9个恢复系配组成 4 5个 F1 ,进行 3地点试验 ;运用 AMMI模型对产量、穗粒性状等的稳定性进行分析 ,结果表明 :(1)各性状 G× E互作均达到显著水平 ;产量及大部分性状的变异以环境效应为主 ,其次是基因型效应 ,G× E互作效应最小 ;千粒重的环境效应和基因型效应相当。 (2 )互作效应的构成 ,即“线性作用 /非线性作用”的比例 ,因基因型和性状而不同。一些组合及性状以线性效应为主 ,另一些则是非线性效应为主。(3)高产与稳产不存在明显矛盾 ;选育产量较高、适应性又好的组合能够作到。 (4)借助参数 Di,AMMI模型可以对稳定性、适应性作准确、方便的评价 ;相对而言 ,回归模型缺少一个综合指标 ,分析结果不能得到精确、直观地反映。
A 3 site NCⅡ experiment was carried out for 45 hybrid rice varieties crossed by 5 CMS lines×9 Restorer lines, which are widely used recently. The characters′ performance in stability was analysed by AMMI model, and the results showed: (1) The G×E interaction were prominent; For yield and most characters environmental effect accounted for the most to the total variation, genotype and G×E interaction were on the 2nd and 3th orders respectively; But for 1000 grain weight, the effects of environment and genotype were equal. (2) The proportion of linear to non linear components in G×E interaction was varied with genotypes and characters. Some varieties or characters were mainly linear effect and others non linear effect. (3) No obvious contradiction existed between high yield and stability; It is possible to develop stable and high yield varieties. (4) AMMI model is an effective and accurate way for stability and adaptability measurement Comparatively, regression model is short in accurate and effectiveness.
出处
《作物学报》
CAS
CSCD
北大核心
2002年第4期569-573,共5页
Acta Agronomica Sinica
基金
"九五"国家总理基金和农业跨越计划资助项目。
