The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602.
从半同胞协方差估计出来的，同一性状的加性遗传方差为0.9602。
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。
Special attention should be given to the decrease of the additive variance of yield trait, and this will most possibly make genetic background narrow.
值得注意的是，产量性状的加性方差有降低的趋势，遗传基础可能变窄。
Special attention should be given to the decrease of the additive variance of yield trait, and this will most possibly make genetic background narrow.
值得注意的是，产量性状的加性方差有降低的趋势，遗传基础可能变窄。
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