杂交水稻亲本混播机械化制种研究进展

Research Progress of Mechanization Production of Hybrid Rice Seed through Parents' Seeds Mixed Planting

混播制种是指将杂交水稻的父母本种子混合播种,通过物理或化学方法将收获的种子区分杂交种和父本种的制种方式,是杂交水稻制种技术的发展方向之一。综述了杂交水稻父母本混播制种的研究动态,提出选育大、小粒型亲本,实行父母本机械混播混收全程机械化制种,通过物理方法筛选分离杂交种子与父本种子的设想。

Seed production by mixed sowing （SPMS） refers to sowing the mixed parents＇ seeds, harvesting by machine, distinguishing hybrid rice seeds and male parent seeds by physical method or chemical method, which is the important development direction of hybrid rice seed production technology. The research status of SPMS at home and abroad was reviewed in this paper. The assumption on breeding parents with different grain types, entire mechanization production of hy- brid seed with mechanized sowing and harvesting, screening and separating two types of seeds by physical methods was proposed.