论文部分内容阅读
甘蓝型双低油菜CMS2 2A是河南省农业科学院棉花油料作物研究所利用 384A中的雄性不育源、采用单株成对连续回交的方法育成的双低油菜细胞质雄性不育系。其突出表现为雄性不育彻底且遗传稳定 ,配合力高 ,抗病抗倒 ,品质优良。CMS2 2A属典型的败药型雄性不育系 ,雄蕊败育短缩至雌蕊基部 ,♂ /♀ <0 .5 ,花药退化变小、无花粉。雌蕊发育正常 ,花瓣虽变小皱缩 ,但花瓣开张正常 ,可以正常接受外来花粉、受精结实。不育率稳定保持在 99%以上。
Brassica napus CMS2 2A is a double-canola cytoplasmic male sterile line bred by the method of single-plant continuous backcrossing by utilizing the male sterility source in 384A by the Cotton Oil Crops Research Institute of Henan Academy of Agricultural Sciences. The outstanding performance of male sterility thorough and genetic stability, with high, anti-disease lodging, good quality. CMS2 2A is a typical male sterile sterility male sterility, stamen abortion shortening to the base of the pistil, ♂ / ♀ <0.5, anther degeneration smaller, pollen-free. Pistil development is normal, although the petals smaller shrinkage, but the normal open petals, you can normally accept foreign pollen, fertilization and solid. Sterility rate remained stable at 99%.