白芥自交亲和性分析

The Self-compatibility of Sinapis alba(L.) Boiss

对不同来源的8份白芥材料,采用人工自交法分析其自交亲和性。结果显示：白芥的自交亲和性存在较大幅度的变异,自交亲和指数在0.01-4.10之间,8份参试材料中,自交亲和指数小于1的材料有3个,自交亲和指数大于1的材料有5个。表明白芥中存在自交亲和材料,白芥自交亲和性变异不仅存在于材料间,而且也存在于同一材料内不同个体间。按自交亲和指数的高低,可将参试材料分为3种类型：高自交亲和类型（自交亲和指数大于3.00,如民乐洪水芥麻、04（X）等）、自交亲和类型（自交亲和指数为1.00-2.99）、自交不亲和类型（自交亲和指数0.00-1.00）。

The self-compatibility of 8 cultivars or lines of S. alba （L.）Boiss from different ecological origins were tested by applying the self-pollination method. The results showed that self-compatibility of S. alba varied among the cultivars, and the average self-compatibility indexes of all the materials were between 0.01-4.10. The differences of self-compatibility were detected among the materials and the individuals in the same materials. The self-compatibility index of three materials was below 1.00. The average self-com- patibility index ranged within 0.01 -0.37. The self-compatibility index of other five materials excess 1.00. They are Minlehongshuijiema, 04 （X）, Wuweimaojiao, Minlehuangjiema and Lintaobaijie. The average selfcompatibility index was 1.23-4.10. The plants which self-compatibility index below 1.00 was not found in these materials and one plant named Minlehongshuijiema-12 self-compatibility index reached 6.36. Accord- ing to their self-compatibility index,the cultivars in this study could be divided into three groups,the high self-compatibility group with the self-compatibility index excess 3.00, the self-compatibility group with the self-compatibility index 1.00-2.99 and the self-incompatibility group with the self-compatibility index below 1.00. The results showed that it is possible for selecting pure cultivars/lines with self-compatibility in S. alba.