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研究揭示了甘蓝型油菜花药壁发育类型属双子叶型,毡绒层为同型单起源毡绒层,又可称为分泌型腺质毡绒层。用0.03％杀雄剂1号处理9个不同发育时期的甘蓝型油莱,研究其诱导雄性不育的效果,结果表明:造胞细胞时期以前处理都是无效的,花粉母细胞以后处理才有效,尤以单核期处理效果最好,不育株率接近100％。这是由于杀雄剂1号诱导甘蓝型油菜花药毡绒层偏离了正常的发育方式,而形成异常的毡绒层,表现为毡绒层增厚,提早解体,与药壁中层分离,并由此产生各种形状的败育花粉。花粉中出现细胞质收缩、空秕,无花粉壁和药中无花粉等现象。文中还对杀雄剂1号诱导甘蓝型油菜雄性不育的作用机制进行了讨论。
The research revealed that the developmental type of the anther wall in Brassica napus belongs to the dicotyledonous type. The effect of male sterility induced by 9 male sterile lines treated with 0.03% Kaohsiung No. 1 at different developmental stages was studied. The results showed that all the treatments of the cytoplasm were ineffective, and the pollen mother cells were effective after the treatment , Especially in the mononuclear stage. The rate of sterile plants was close to 100%. This is due to the killing of male anther No. 1 rape anther veil layer deviated from the normal developmental pattern, and the formation of abnormal velvet layer, showing the fleece layer thickening, early disintegration, and drug wall middle, and by This produces aborted pollen in all shapes. Pollen cytoplasmic contraction occurs, empty 秕, no pollen wall and drug-free pollen and so on. The mechanism of killing male sterility in Brassica napus L. was also discussed in the article.