低供氮处理对杂交稻产量性状及产量的影响
Effects of Low Nitrogen Treatment on the Hybrid Rice Yield and Yield Traits
岳彩萍 1陶诗顺 1黄晶1
作者信息
- 1. 西南科技大学生命科学与工程学院，四川绵阳621010
- 折叠
摘要
[目的]研究低供氮处理对杂交稻产量性状及产量形成的影响。[方法]通过田间试验，对供试的20个杂交稻品种产量性状及产量在低供氮处理下进行相关分析和通径分析。[结果]有效穗数与实粒数、着粒数与结实率均呈极显著负相关关系，实粒数与着粒数呈极显著正相关关系，各产量性状对产量的贡献大小表现为实粒数>有效穗数>千粒重>着粒数>结实率。[结论]以有效穗数、实粒数为主攻对象可提高杂交稻的理论产量，为水稻栽培技术提供理论依据。
Abstract
Objective] To research the effects of low nitrogen treatment on the hybrid rice yield and yield traits. [ Method] Correlation analy-sis and path analysis of 20 varieties of hybrid rice yield traits and yields were carried out under the low nitrogen treatment by field experiment. [ Result] Effective panicle number had extremely significant negative correlation with solid grain number per panicle, grains per panicle and seed setting rate. Solid grain number per panicle had extremely significant positive correlation with grains per panicle. The order of contribu-tion size for yield in yield traits was solid grain number per panicle > effective panicle number > 1 000-grain weigh > grains per panicle >seed setting rate. [ Conclusion] Effective panicle number and solid grain number per panicle can improve the theoretical yield of hybrid rice, and provide theoretical references for the rice cultivation technology.
关键词
产量性状/低供氮/杂交稻/相关分析/通径分析Key words
Yield traits/Low nitrogen/Hybrid rice/Correlation analysis/Path analysis引用本文复制引用
基金项目
国家“十二五”科技支撑计划重大项目(2013BAD07B13)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据