山东农业科学2016，Vol.48Issue(9)：77-83,7.DOI:10.14083/j.issn.1001-4942.2016.09.017
雨养条件下施氮水平对冬小麦小花发育与结实的影响
Nitrogen Levels on Floret Development and Grain Setting of Winter Wheat under Rain Fed Conditions
摘要
Abstract
With winter wheat variety Shannong 20 as material,the effects of different nitrogen levels,0 (N0),240 (N1 ),360 (N2)kg/hm2 ,on developmental dynamics and setting rate of florets on different parts of spikes (basal,central,apical)and grain yield were studied under rain fed conditions through field plot experiments.The results indicated that increasing N fertilizer significantly improved the number of fertile florets on different parts of spikes and increased the average setting rate.It also induced the floret development and prolonged the floret development time.Thus,the kernels per spike and grain yield were significantly in-creased,and N1 treatment owned the highest yield.关键词
冬小麦/小花发育/结实特性/雨养/氮肥Key words
Winter wheat/Floret development/Grain setting/Rain fed/Nitrogen fertilizer分类
农业科技引用本文复制引用
王玉竹,尹燕枰,李勇,王振林..雨养条件下施氮水平对冬小麦小花发育与结实的影响[J].山东农业科学,2016,48(9):77-83,7.基金项目
国家自然科学基金项目（31271661）；国家公益性行业（农业）科研专项（201203100，201203029）；山东省现代农业技术体系项目 （）
