论文部分内容阅读
利用雄性不育两用系生产大白菜一代杂种种子的方法,是我们在选育出了大白菜雄性不育两用系后,创造出的一种新的大白菜一代杂种制种方法。利用这种方法生产大白菜一代杂种,具有原种繁殖方便、生产成本低、原种生活力不易退化、一代杂种制种质量容易保证等优点。自1972年以来,我们已选育出了多个优良的雄性不育两用系。用它们配制的优良大白菜一代杂种双青156、青槐169、抱青26等已在北京郊区大面积推广。1978年秋种植面积已超过10,000亩。部分雄性不育两用系及一代杂种已在其他兄弟省市推广利用。大白菜雄性不育两用系是一种
The method of using male sterile dual-purpose lines to produce Chinese cabbage first-generation hybrid seeds is a new method for producing hybrid Chinese cabbage generation after we breed male sterile lines of Chinese cabbage. The production of Chinese cabbage generation hybrids by this method has the advantages of easy breeding of original species, low production cost, less deterioration of viability of primary species and easy generation of hybrid seeds of the first generation. Since 1972, we have bred a number of excellent male-sterile dual-use lines. With their preparation of a good hybrid Chinese cabbage double green 156, green Huai 169, hold the green 26 have been large-scale promotion in Beijing suburbs. Autumn 1978 planting area has more than 10,000 acres. Some male sterile lines and hybrids have been used in other provinces and cities. Chinese cabbage male sterile dual-use is a