甘蓝柱头对不同来源花粉的选择性研究

利用自交系和常规品种作母本，紫甘蓝作父本，在母本自交后间隔不同时间再授异系花粉。结果表明，甘蓝自交系和常规品种在受精时具有较高异父亲和能力。在同型与异型配子存在时，优先接受异型配子受精；杂交率自交系显著高于常规品种，在自交后24h内任何时间母本受父本花粉能获得平均杂交率自交系为97.1%，常规品种为77.8%。

Studies on Stigma Selecting Fertilization to Other Original Pollen in Cabbage

Selecting fertilizaiton of cabbage stigma was studied by using selected self-bred lines and varieties in Brassica oleracea var.Capitate L.F.Alba DC.as female parents and self-bred lines of Brassica oleracea var.Capitate L.F.rubra thell as male parent,and pollinating male pol len at different times after female parents self-crossing.The results showed that there was high cross-compatibility in cabbage stigma.The stigma acception to ther original gamete was much higher than the same original''s as both of them exist.Crossing-rate of self-bred lines is higher than that of varieties.After self-crossing obtain ning male pollents at any time among 24 hours,the self-bred lines could give out 97.1% cross-rate and the conventional varieties do 77.8%.