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采用NCⅡ遗传交配设计 ,以分属于不同杂种优势群的 6个自交系做测验种 ,与 6个合成群体组配成 36个组合。结果表明 :单株产量的GCA以LBM最高 ,其次为WBM ,从株型、穗型性状的SCA分析合成群体与自交系组成了 9个优良杂种优势模式。单株产量最高的组合为HZ85×WBM ,其均值为 10 8 75g。通过对优良杂优模式内的变异参数估计 ,在群体内有丰富的变异个体 ,具有很强的选择潜势。组合内个体产量分布以及出现的频率对选系和轮回选择具有明确的指导意义。人工合成群体具有丰富的遗传变异 ,分属于不同的杂种优势类群 ,具有多元种质的特性。作为选系和轮回选择群体 ,具有明显的选择潜势
Using NCⅡ genetic mating design, six inbred lines belonging to different heterotic groups were used as test species and 36 combinations with six synthetic population groups. The results showed that GCA of single plant yield was the highest with LBM followed by WBM, and 9 superior heterosis modes were formed by SCA analysis of plant type and panicle traits. The highest yield per plant was HZ85 × WBM with an average of 10 8 75 g. Through the estimation of variation parameters in the excellent heterotrophic pattern, there are a lot of variation individuals in the population, which has a strong potential for selection. The distribution of individual production and the frequency of occurrence within the combination have clear guiding significance on the selection and reincarnation options. Synthetic groups are rich in genetic variation, belonging to different heterotic groups, with multiple germplasm characteristics. As a selection system and reincarnation group, has obvious potential choice