论文部分内容阅读
本文用7个胡麻品种作亲本,采用完全双列杂交法(包括正反交和自交,P~2个组合数)对胡麻含油率的配合力进行了初步分析。配合力方差分析表明:一般配合力方差达1%的显著水准,特殊配合力方差达5%的显著水准,一般融合力方差为特殊配合力方差的17.56倍,说明胡麻含油率的遗传受加性和非加性基因的共同作用,但加性基因效应是主要的。7个亲本当中,张亚1号的一股配合力效应最高,显著高于其它亲本,其次是75—17;瑞士红一般配合力效应最小,77134—269次之。特殊配合力效应高的组合,多数有一个一般配合力较高的亲本(75—17×681—3—3、天亚2号×瑞士红和天亚2号×77134—269),但这也不是绝对的,例如含有两个低亲(宁亚10号×瑞士红)的组合显示出高的特殊配合效应。可是,含油率数值高(40%以上)的组合,至少有一个亲本是含油率一般配合力高的品种。
In this study, seven flax cultivars were used as parents to analyze the combining ability of oil content of flax using complete diallel cross (including reciprocal and selfing, P ~ 2 combinations). The analysis of variance of combining ability showed that the significant level of variance of general combining ability reached 1%, the significant level of variance of special combining ability reached 5%, and the variance of general combining ability was 17.56 times of that of special combining ability, which indicated that the inheritance of oil content of flax And non-additive genes, but additive gene effect is the main one. Of the seven parents, the highest combining ability of Zhang Ya 1 was significantly higher than that of other parents, followed by 75-17; the lowest combining ability of Swiss red was 77134-269. Most combinations with high combining ability had one parent with higher combining ability (75-17 × 681-3-3, Tianya 2 × Swiss Red and Tianya 2 × 77134-269). However, Not absolute, for example, a combination with two low progeny (Ningya 10 × Swiss red) shows a high specific coordination effect. However, the combination of high oil content (more than 40%), at least one of the parents is a variety with high oil content and high combining ability.