Research of variation for morphological traits of cone and seed among individual and within a single tree of Pinus rigida plantation
Collecting samples from the distribution of Pinus rigida in Xiajiang Jiangxi area,the morphological traits of cone and seed were analyzed statistically, and were applied to study the phenotypical variationamong individual and within a single tree. Results from phenotypic variation analysis indicated that there were significant differences for most traits among individual and within a single tree, which means that there were great differences for morphological traits of cone and seed. Correlations between all the thirteen traits showed that the larger and heavier the cone, larger and heavier the seed would be. The results of multivariate regression analysis showed that seed length, seed thickness,cone weight and seed length × seed width × seed thickness could explain 92.1% of the equation. Linear regression equations between the four traits and single seed weight were constituted, and the results showed that the coefficients of determination of linear regression equation between single seed weight and seed length, seed thickness (0.529 and 0.428) were smaller than those of cone weight and seed length × seed width × seed thickness (0.618 and 0.666).
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万方数据
维普
