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本试验估算了亚麻F_2群体8个农艺性状的遗传力、遗传进度与类型有关,其结果是,F_2不同性状的遗传力和遗传进度不同。F_2不同性状的遗传力、遗传进度在不同杂交组合中各不相同,在同父异母和同母异父的组合中也有明显的差异,F_2相对遗传进度可作为双亲遗传差异的指标。选育油用型品种时,以选择株结实果数遗传进度快,而株高遗传进度慢的组合为好。选育纤用型品种时,F_2以选择株高、工艺长度遗传进度快,而全茎分枝数和单株结实果数遗传进度慢的组合为好。选育两用型品种时,F_2宜选择株高、工艺长度、有效分茎数、单株结实果数遗传进度适度的组合。
This experiment estimated the heritability of 8 agronomic traits in F 2 population of flax, and the genetic progress was related to the type. The result was that the heritability and genetic progress of different F 2 traits were different. The heritability and genetic progress of different traits in F_2 were different in different cross combinations, and there was also a significant difference in the combinations of half-parents and half-mates. The relative genetic progress of F_2 could be used as an indicator of genetic differences in parents. Breeding oil-based varieties, to select the number of fruit firm genetic progress faster, while the slow progress of the plant height combination is better. F 2 to select the type of fiber to select the plant height, process length genetic progress faster, and the whole stems branch number and fruit number per plant slow genetic combination is better. When breeding dual - purpose varieties, F_2 should select the appropriate combination of plant height, process length, effective number of stems, the number of fruit trees per plant.