摘要
我国杂交水稻制种技术的发展，大体经历了３个阶段。１９７３～１９８０年，是杂交稻制种技术的摸索阶段，每亩产量由最初的６ｋｇ提高到５０ｋｇ；１９８１～１９８５年，是杂交稻制种技术的完善阶段，每亩产量连续登上７５ｋｇ及１００ｋｇ两个新台阶；１９８６年开始，我国的杂交水稻制种已进入超高产制种技术的研究阶段，并取得了突破性进展，每亩产量已突破１５０ｋｇ．随着超高产制种技术的全面推广，每亩产量可望突破２００～３００ｋｇ。随着我国机械化制种技术的问世，制种产量可望达到常规水稻的产量水平。
The development of hybrid rice seed production techniques could be devided into three periodsgenerally. The initial researching period was from 1973 to 1980,in which the seed production yield per hectarewas raised from 90 kg to 750 kg;The improving period was from 1981 to 1985,when the yield per hectare wasput onto two new stages:1125 kg and 1500 kg;After 1986,China’s hybrid rice seed production was re-searched for super high yielding technique,and an important breakthrough was made and the yield surpassed2250ky/ha.With the super high yielding seed production technique being spread widely,the per hectare yieldis expected to surpass 3000 kg and reach 4500 kg.With the mechanized seed production technique being givenbirth,the seed production yield is expected to reach the yield of normal rice.
出处
《杂交水稻》
CSCD
北大核心
1994年第3期50-51,57,共3页
Hybrid Rice
关键词
杂交水稻
制种
发展
产量
hybrid rice
seed production techniques
developing periods
seed yield
