The research objective was to reveal the correlation between phenotypic variance trend of Toona ciliata leaf,fruit and seed in the natural populations of Hubei Province. Mean value,standard deviation,coefficient of variation and variation range of phenotypic characters of T. ciliata leaf,fruit and seed were analyzed,and geographic trend surface fitting equations for such phenotypic variances were also established. The result indicated that there were significant differences of 10 leaf phenotypic traits and1...