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实验中探讨了苜蓿自交不亲和性和遗传特征。结果得出:1.苜蓿自交结荚百分率为0～92％,平均为27.6％。苜蓿自交不亲和性在群体中呈连续、偏态分布。2.苜蓿自交不亲和性反应主要发生在雌蕊组织下部(子房及子房腔)。3.确定自交不亲和或自交亲和性的判别函数方程为Y=-0.0804x_1—0.5228x_2+0.6117_3。4.苜蓿自交不亲和性受单位点、复等位基因控制,并具有CSI遗传特点。5.S基因与过氧化物同工酶基因(Prxl)为连锁,两者间重组值为27％。6.PSC的遗传力h~2=62％,选择无论对亲和性和不亲和性均为有效。根据本试验结果讨论了苜蓿SI的测度指标、授粉方式及不亲和性的数量差异问题,并探讨了紫花苜蓿与黄花苜蓿种的分类差异,认为两者理应属同一种或种内不同生态型。
The experiment inbred alfalfa self-incompatibility and genetic characteristics. The results showed that: 1. The percentage of selfed pods in alfalfa ranged from 0 to 92% with an average of 27.6%. Alfalfa self-incompatibility in the population was continuous, skewed distribution. 2. Alfalfa self-incompatibility reaction occurs mainly in the lower part of the pistil tissue (ovary and ovary cavity). The discriminant function equation of self-incompatibility or self-compatibility was Y = -0.0804x_1-0.5228x_2 + 0.6117_3.4. The self-incompatibility of alfalfa was controlled by the single point and multiple alleles, And with CSI genetic characteristics. 5.S gene and peroxidase isoenzyme gene (Prxl) as a chain, the recombination value between the two was 27%. 6.PSC heritability h ~ 2 = 62%, the choice of both affinity and non-affinity are valid. According to the results of this experiment, the measurement index, pollination method and incompatibility of alfalfa were discussed, and the classification differences between alfalfa and alfalfa were discussed. The two species should belong to the same or different ecotypes .