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[目的]为选配和利用高产、稳产陆地棉杂交种和品种提供理论依据。[方法]采用MINQUE(1)统计方法,利用AD模型对陆地棉8个亲本和16个F1组合的4个产量性状和3个形态性状进行了遗传分析。[结果]各性状的普通广义遗传率均达极显著水平,特别是铃重、衣分、顶部茎粗的普通广义遗传率达50%以上,单株皮棉产量、单株铃数、株高、子叶节茎粗普通广义遗传率较低,单株皮棉产量和单株铃数的普通狭义遗传力分别为24%和25%,铃重、衣分等性状的普通狭义遗传力较低或为0。亲本的加性效应分析表明,在中35的杂种后代中易选出高产的遗传材料。各组合显性效应分析表明,部分组合的各性状可能表现正向杂种优势。[结论]陆地棉产量性状的遗传受加性效应和显性效应共同控制。
[Objective] The research aimed to provide theoretical basis for selecting and utilizing high yield and steady yield of upland cotton hybrids and cultivars. [Method] With the method of MINQUE (1), four yield traits and three morphological traits of 8 F1 combinations and 16 F1 combinations of upland cotton were analyzed by AD model. [Result] The average general heritability of each trait reached extremely significant level, especially general common heredity rate of boll weight, lint percentage and top stalk was more than 50%. The lint yield per plant, number of bolls per plant, plant height, Common general heritability of stems of cotyledon stems is low, common narrow heritability of single plant boll number and boll number per plant were 24% and 25%, respectively, common narrow heritability of boll weight and lint percentage was low or 0 . The additive effect analysis of the parents showed that high yielding genetic material was easily selected among 35 progenies of hybrids. The dominant effect analysis of each combination showed that the characters of some combinations may show the positive heterosis. [Conclusion] The inheritance of yield traits in Upland cotton was jointly controlled by additive effect and dominant effect.