<正>本项研究是以福建省的5个试验点的马尾松优树自由授粉子代测定林中的50个家系的树高、胸径、冠幅和存活率性状为基础,进行家系与环境互作的分析。在分析中,除运用常规的方差分析、主成分分析和回归分析外还引入了加性主效应和非加性互作(AMMI)模型。这不仅揭示了家系与地点互作变量的大小及其显著性水准,而且也揭示了各家系对互作变量的贡献率。并借助AMMI模型两向图,直观地表达了50个家系在半个性状上加性效应和非加性互作的异同,从而,方便了优良家系的推广和利用。

This study on genotype×environment interaction focuses on four characters, i. e. tree height, DBH,. crown width and survival rate of fifty half-sib families from open pollination progeny testing plantations of Masson pine (Pinus massoniana) superior trees located in three or four places in Fujian Province. Along with the analysis of variance (ANOVA) , principal components analysis (PCA) , linear regression (LR) , the additive main effects and multiplication interaction (AMMI) model were applied to reveal the magnitude of, family × location interaction variates and their significant levels and the contribution of each family to the interaction variates. The difference of the additive main effects and multiplication interaction of the 50 families in an individual character was directly described with biplot of AMMI model, which is beneficial for the spread of Masson pine superior families.