福建省杂交中稻产量相关性状的基因型与环境变异

Genotype and Environmental Variation in Yield-related Traits of Mid-season Hybrid Rice in Fujian Province

基于福建省2006～2010年连续5年10个不同生态条件的杂交中稻联合区域试验数据资料,应用AMMI模型和相应统计分析方法,分析了产量及其相关性状的基因型与环境互作,结果表明:以基因型效应为主的有千粒重,以环境效应为主的有生育期、产量、穗长、株高、穗实粒数,以基因型与环境间互作效应为主的有有效穗;千粒重、穗长、有效穗性状的稳定性好,受栽培环境及G×E互作效应影响较小,其次为生育期和株高,第三为穗实粒数,最差的为产量,受栽培环境及G×E互作效应影响大,因此选育、引种和利用适合福建省杂交中稻品种时,需考虑性状的基因型、环境、基因型与环境间互作效应,才可提高育种效率。

Based on the data of the mid - season hybrid rice joint regional trials conducted in 10 different ecological areas of Fu- jian province from 2006 to 2010, the genotype - environment （ G × E） interaction of the yield and its relevant traits was analyzed by u- sing AMMI model and the corresponding statistical analysis technique. The results indicated that the 1000 - grain weight was mainly controlled by genotype, the growth duration, yield, ear length, plant height and filled grains per ear were mainly controlled by environ- ment, and the number of effective ears was mainly controlled by G x E interaction. The 1000 - grain weight, ear length and effective ears were the most stable, and cultivation environment and G x E interaction had the least effect on them; followed by growth duration, plant height and number of filled grains per ear; while the yield was most unstable, and it was affected greatly by cultivation environ- ment and G x E interaction. In the future, breeding, introducing and using mid - season hybrid rice varieties, which were suitable for Fujian province, must consider the genotypic and environmental effects as well as G x E interaction of their traits.