为了利用杂种优势,较大幅度地提高油菜单位面积产量,我们近几年来开展了油菜雄性不育研究。现将1976～1977年的试验小结如下: 一、试验材料和方法 (一)供试材料: 今年试验材料原有409份。因冻害损失,实际311份,其中雄性不育材料209份,亲本材料102份。甘蓝型油菜全不育材料,主要是1974年从四川宜宾和江西宜春引进的宜3A、川7A转育后代,今年又引进宜3A、湘1型和日本细胞质 In order to take advantage of heterosis, rapeseed yield per unit area is greatly increased, we have conducted rapeseed male sterile studies in recent years. Now 1976 ~ 1977 test summary is as follows: First, the test materials and methods (A) test materials: This year’s original 409 test materials. As a result of frost damage, the actual 311, of which 209 were male sterile material, 102 of the parent material. Brassica napus sterile materials, mainly from 1974 in Yibin, Sichuan and Yichun, Jiangxi introduced the appropriate 3A, Sichuan 7A transplanted offspring, this year also introduced should 3A, Hunan type 1 and the Japanese cytoplasm