摘要
对4个杂交组合的5个亲本主茎叶片数及叶生长速度进行了研究,根据研究结果,参考各品种生育期,确定4个组合制种时亲本的播差期,为杂交稻制种父母本花期相遇提供技术理论依据。
This paper studies on five plants of four hybrid combinations of major stem number and growing leaves rate.According to the results,and consulting growing stage of varieties,we define the number of sowing gap stage of five parents in order to give foundation of techniques to two parents of flower stage meeting each other in hybrid rice seed production.
出处
《天津农业科学》
CAS
2003年第1期32-34,共3页
Tianjin Agricultural Sciences
基金
天津市重大农业攻关项目(993121211-3)
关键词
杂交水稻
叶龄
安全制种期
播差期
hybrid rice
leaf age
safe stage of seed production
sowing gap stage
