不同栽培密度对油菜品种中双11号生长的影响
Effects of Planting Density on Rape Cultivar Zhongshuang 11
白桂萍 1尹羽丰 1谭永强 1唐雪辉1
作者信息
- 1. 湖北襄阳市农业科学院,湖北襄阳441057
- 折叠
摘要
[目的]探讨油菜品种中双11号直播的适宜密度.[方法]研究5种栽培密度(15万,30万,45万,60万,75万株/hm2)对中双11号产量、农艺性状及产量构成的影响.[结果]不同栽培密度对油菜农艺性状影响较大,随着密度的增加,株高和主花序长度降低,分枝数减少,分枝高度逐渐增高;密度对产量构成因素影响最大的是单位面积角果数,其次是千粒重和每角粒数,产量最高值时单位面积角果数、每角粒数和千粒重并不同时都为最大值.[结论]中双11号直播适宜密度为60万～75万株/hm2,产量最高可达3 055.50kg/hm2.
Abstract
[Objective] To discuss the proper density of rape cultivar Zhongshuang 11.[Method] Effects of five planting densities on the yield,agronomic traits,and yield component of Zhongshuang 11 were researched.[Result] Planting density had relatively great impacts on agronomic traits of rape.With the increase of density,branching number,plant height and main inflorescence length reduced; but branching height gradually enhanced.Density had the greatest impacts on pod number per unit area,followed with 1 000-grain weight and seed number per pod.Pod number per unit area,seed number per pod and 1 000-grain weight were not the maximum at the same time when the yield was the greatest.[Conclusion] The proper sowing density of Zhongshuang 11 is 600 thousand-750 thosuand plants/hm2 ; the maximum yield reaches 3 055.50kg/hm2.
关键词
栽培密度/油菜/中双11号/影响Key words
Planting density/Rape/Zhongshuang 11/Effection引用本文复制引用
基金项目
现代农业产业技术体系项目(CARS-13)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据