论文部分内容阅读
杂交水稻制种产量的高低,与产量构成因素之间的关系非常密切。如何协调好产量构成因素之间的关系,是杂交水稻制种获得高产的关键所在。本文通过制种高产典型田块的产量构成因素分析,明确了本县杂交水稻制种的主攻方向及其相应的栽培技术措施。 1 资料来源与分析方法根据1991～1997年永嘉县岭头乡(海拔500～550m)27户46.3亩杂交水稻制种高产田块的产量数
Hybrid rice seed production level, and yield components of the relationship between very closely. How to coordinate the relationship between yield components is the key to high yield of hybrid rice seed production. In this paper, through analysis of the yield components of high yielding typical plots, the main direction of hybrid rice seed production in this county and its corresponding cultivation techniques and measures were clarified. 1 Sources and Methods of Analysis According to the output of 46.3 mu of high-yielding hybrid rice seed production in 27 households in Lingtou Township (500-550m above sea level) in Yongjia County from 1991 to 1997