摘要
分析高产小麦分蘖成穗特性及成穗率与产量的关系, 表明高产小麦主茎第1、第2 分蘖发生率和成穗率高,在获得适宜穗数前提下提高茎蘖成穗率能改善群体质量、提高每穗结实粒数和粒重、实现高产。栽培措施对茎蘖成穗率有显著调节效应。
The relationship between the earing percentage of main stems and tillers and wheat grain yield was analysed from 1991 to 1997. The emergence and earing percentages of tillers at low nodes of main stems in high yielding population were relatively high. Under the condition of obtaining suitable ear number, raising the earing percentage of main stems and tillers could increase grain number per ear and grain weight resulting in high yield. Cultural techniques could effectively regulate the earing of tillers.
基金
江苏省"九五"农业重点攻关项目
江苏省农业基金
关键词
小麦
高产
成穗率
调控技术
wheat
high yield
earing percentage
regulation techniques
