作物学报2001，Vol.27Issue(2)：243-252,10.
陆地棉开花成铃性状的遗传研究Ⅱ. 不同果枝节位的遗传规律
Genetic Analysis on Flowering and Boll Setting in Upland Cotton(Gossy pium hirsutum L.) Ⅱ. The Genetic Behavior of Different Fruiting Sites
摘要
Abstract
An additive-dominant genetic model with genotype by environment interaction was employed to analyze the genetic behavior of flowering and fruiting with 2-year data from 4×4 diallel crosses. The results of unconditioned and conditional variance analysis indicated that flowering and fruiting behaviors were mainly controlled by dominant effects on the middle -low sites near the stem, and had some genotype×environment interaction variances. On the middle-up sites and faraway stem, additive variance had high ratio among the total variance. Furthermore, more distal away the main stem, larger ratio of genotype×environment interaction variance would exist. For contribution rates, there had high additive contribution rate on the middle-up sites and faraway stem (mostly>50%), while the dominance contribution rate of most fruiting sites on this part were 0 or <0. Compared to main effects, interaction contribution rates had different behaviors. The analysis of covariance between average flower number, boll number on different fruiting sites and total number of bolls showed that there were significant positive additive correlation coefficient on middle-up sites and faraway stem, negative or zero dominance correlation coefficient on middle-low sites near stem. Different environments may results in different correlating behaviors.关键词
不同果枝节位/平均开花数和平均成铃数/相关系数/非条件遗传方差/条件遗传方差分类
农业科技引用本文复制引用
叶子弘,朱军..陆地棉开花成铃性状的遗传研究Ⅱ. 不同果枝节位的遗传规律[J].作物学报,2001,27(2):243-252,10.基金项目
国家自然科学基金项目资助 （）
