摘要
本文分析了不同栽培条件下的水稻株形变化规律,指出了株形的变化在一定程度上反映了生理性状的变化。采用合理的栽培措施进行系统控制,在保证必要穗数的前提下争取大穗,并相应控制倒3叶长度,促进穗长和剑叶长度,增加叶厚使上部叶片直立,下部叶片相对平展,使粒叶比达到最适程度,有利于改善株形,提高产量。
In this paper,the laws of rice plant morphological changes under
different cultural conditions are analysed.It is indicated that mor-
phological changes reflect the changes of given physiological actions.
The length of third leaves from above should be controlled,the length
of panicles and that of flag leaves should be extended and spesific leaf
weight should be raised in order to make the upper leaves erect,the
lower leaves grow relatively horizentally,and the grain-leaf area ratio
come to optimum.Besides the ripened grains per panicle are increased
and the necessary panicles per unit area are secured by using suitable
cultural measures and system controll methods.These steps are helpful
in creating the ideotype and increasing grain yield.
出处
《沈阳农业大学学报》
CAS
CSCD
1991年第0期61-68,共8页
Journal of Shenyang Agricultural University
基金
国家教委优秀青年教师基金
关键词
水稻
株型
栽培
源库平衡
rice
ideotype
the equilibrium of source and sink
