一、连锁不育材料的获得经过 1977年我们在桂花黄(粳型绿苗)×红光稻(籼型紫苗)杂交组合的第五代株系中观察到,凡是分离出来的紫苗结实率高,绿苗结实率很低。之后,我们选择紫苗建立株系,发现在不同株系中,紫苗仍为高实,绿苗仍为高度不育。对六、七、八各世代选建紫苗株系谱,通过选择压力,紫苗结实率可以逐代提高,而绿苗结实率却逐代降低。到八代材料中,各株系 First, the availability of sterile materials Through our fifth generation of sweet-scented osmanthus Huang (japonica green seedlings) × red rice (indica purple seedlings) hybrid combinations in the fifth generation of strains observed that all the isolated seedlings strong High rate, low seedling rate of green seedlings. After that, we chose to establish a line of purple seedlings and found that in different lines, the purple seedling is still high, green seedling is still highly sterile. On the six, seven, eight generations of selected purple line pedigree selection, by selecting the pressure, seedling seed setting rate can be increased one by one, while the seedling rate of seedlings has decreased from generation to generation. To eight generations of materials, the strains