The variance component analysis revealed that the ratios of additive genetic variance to phenotypic variance of the majority of economic traits were high.
进一步的方差组分估计表明，主要经济性状的加性遗传方差较大。
Number of leaves was mainly controlled by additive effects, dominance effects were the major genetic component for length of leaves, width of leaves and area of leaves.
烤烟叶数性状主要受加性效应控制，腰叶长、腰叶宽和叶面积主要受显性效应控制。
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