山香园营养器官性状变异的数量研究

A Numerical Study on Variation of Vegetaeive Ovgan′s Characeers of Turpinia arguta

山香园(TurpiniaargutaSeem)的营养器官性状在其分布区内表现出明显的变异,应用数量分析方法研究了山香园在营养器官上的性状变异规律,结果是:1山香园在营养器官上的性状变异分为四个类型(I、II、III、IV),其中类型I变异显著,具有较高的育种价值;II、III是过渡类型,性状不稳定.2山香园在营养器官的性状变异分化中,叶宽、株高和地径3个性状的信息贡献率最大,是主要的变异性状.3山香园的形态特征有明显的变异趋势.

Turpinia arguta has obvious variation of characteristics in vegetative organs of Turpinia arguta in its distribution area.The method of numerical analysis is taken to find out a law of vegetative organs′ variation of Turpinis arguta in this paper and results from the study of numerical analysis have been showed as following:① Four types are made here in variation of vegetative organs′ characters of Turpinia arguta and the type I which is vevy important for tree breeding has outstanding variation of vegetative organ′s characters;but type II and type III are unsteady in inheritance as transition types. ② For the variations of vegetative organ′s characters of Turpinia arguta,three important characteristics of vegetative organs like length of leaf、heigt of seedign and diameter at ground of seeding have great rate of information in variation. ③ the morphological characteristics of leaves of Turpinia arguta show notable tendency of variation.