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由11组各含P_1、P_2、F_1、F_2、B_1和B_2家系的平均数及其方差,估计了陆地棉有关株型的10个性状和有关产量、品质的7个性状的基因效应。结果表明,株高,主茎节间长,第5、10、15果枝节间长和纤维长度的遗传,除有加性、显性效应外,尚有不可忽略的上位性效应;第1、10果枝与主茎夹角的遗传属加性-显性模型;第1果枝节间长,第5、15果枝与主茎夹角,每株铃数,单铃籽棉重,衣分,霜前籽棉、籽棉和皮棉产量则主要是加性遗传效应。因而一般地说,株型性状的遗传并不比产量性状简单。
Based on the average and variance of P_1, P_2, F_1, F_2, B_1 and B_2 families from 11 groups, the genetic effects of 10 traits of plant type and related traits and qualities of upland cotton were evaluated. The results showed that epistatic effects were not negligible in addition to additive and dominant effects on plant height, internode length of the main stem, length of the 5th, 10th, 15th stem and fiber length. The first, The genetic relationship between fruiting branches and main stems is an additive-dominance model. The first branch of intergranular length, the angle between the 5th and 15th branches and the main stem, the number of bolls per plant, the weight of cotton boll seed, Seed cotton, seed cotton and lint yield are mainly additive genetic effects. Therefore, in general, the inheritance of plant type traits is not as simple as the yield traits.