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本文估算了胡麻主要经济性状的广义遗传力、遗传相关系数、遗传进度和选择指数等遗传参数.结果表明;千粒重、株高、工艺长度的遗传力、遗传进度较高,遗传变异系数较大,在早代进行一次选择即可;每果着粒、开花期的遗传力和遗传进度也较高,而变异系数较小.对其也应加强早代选择,并加大选择群体;单株粒数、主茎分枝的遗传力和遗传进度中等,应进行几代连续选择;单株粒重、单株结果的遗传参数值均较小,直接选择效果差,可通过显著相关的性状进行间接选择.特别是对于单株粒重,还可以用相对效率高的选择指数进行间接选择.
In this paper, the genetic parameters of broad-sense heritability, genetic correlation coefficient, genetic progress and selection index of major economic traits of flax were estimated.The results showed that the heritability and genetic progress of 1000-grain weight, plant height and process length were high, the genetic coefficient of variation was large, In the early generation of a choice can be; per fruit per grain, flowering heritability and genetic progress is also higher, and the coefficient of variation is smaller, it should also strengthen the early selection, and increase the selection of groups; Number of main branch stems of the heritability and genetic progress, should be carried out several generations of continuous selection; grain weight per plant, single plant genetic parameter values ?? are small, direct selection is poor, can be significantly related to indirect traits Selection, especially for individual grain weight, can also be indirectly selected with a relatively high selection index.