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我省目前,水稻“三系”选育工作进展良好,恢复系确有希望。红毛英不育材料极易用当前推广的粳稻品种转育,且能保持其优良的不育特性,而经济性状又极似转育的推广种,这是一个很可贵的特点,为将来用于生产提供了可能性。再加一把劲,我省的“三系”配套是大有希望的。一、恢复系的选育: 1.“698”系是当前解决“滇一型”恢复系的重点材料,目前,滇一型不育系与“698”中的单系杂交,其子一代全恢复,平均结实80—90％的有6个单系;平均结实90％以上的有一个单系。“698”是由滇一型不育材料的天交种中选出的高结实株,随着代数的增加,其对滇一型不育系的恢复力也有逐渐提高的倾向,一代比一代好,且其
At present in our province, the breeding of the “three lines” of rice has progressed well and the restoration department is indeed promising. It is a very valuable feature that the red wool brittle male sterile material can be easily transfered with the current popularized japonica rice varieties, and can maintain its excellent sterility traits, It offers the possibility of production. Coupled with a success, our province’s “three lines” package is promising. I. Breeding and Selection of Breeding Lines 1. “698” line is the key material for resolving the “Dian-1” restorer line at present. At present, Dian-1 type CMS lines and “698” Recovery, the average firm 80-90% of 6 single-line; the average firm more than 90% of a single-line. “698” is a high-fruiting strain selected from the day-crossing of Dian-type sterile material. With the increase of algebra, the resilience to Dian-type sterile line tends to increase gradually. , And it