杂交水稻繁殖制种生产,抓质量的配套技术措施有: 1.连片种植,做好时空隔离 1982年前,我场不育系的繁殖分为夏繁和秋繁,结果发现,秋繁扬花授粉和收获期与秋季制种矛盾突出(花期矛盾、场头矛盾),难以确保纯度。自1983年起,实行了布局上的大改革:改秋繁为夏繁;改常规稻与杂交水稻制种混植为单一杂交水稻制种;改杂交组合分散插花制种为成片集中,并充 Hybrid rice seed production, quality of the supporting technical measures are: 1. Contiguous planting, good space-time isolation Before 1982, my field sterile breeding is divided into summer and autumn Fanfan, the results found that the autumn and blooming flowers Contradiction between pollination and harvesting and autumn seed production (blooming conflicts, field conflicts), it is difficult to ensure purity. Since 1983, the implementation of a major reform of the layout: change the autumn to summer complex; to change conventional rice and hybrid rice seed production as a single hybrid rice seed; change hybrids scattered flower arrangement for the film into focus, and charge