一、引言树木的表现型是遗传和环境共同作用的结果。表现型的好坏,除了遗传、环境这二个因素外,还存在着遗传型×环境的交互作用。这个交互作用是指树木遗传型对变化的环境条件的不同反应。同类树木栽培在不同的环境条件下,表现出来相对生长量的差异,主要是由于树木的遗传型×环境互作所造成的。 I. INTRODUCTION The phenotypic characteristics of trees are the result of a combination of genetic and environmental factors. Phenotypes of good or bad, in addition to genetic, environmental two factors, there are still genetic type × environment interaction. This interaction refers to the different responses of tree genotypes to changing environmental conditions. Under the different environmental conditions, the relative growth of the same type of trees showed the difference, mainly due to the genetic type of trees caused by the interaction of the environment.