Nitrogen Levels on Floret Development and Grain Setting of Winter Wheat under Rain Fed Conditions
Wang Yuzhu
Yin Yanping
Li Yong
Wang Zhenlin
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.
Keywords：Winter wheatFloret developmentGrain settingRain fedNitrogen fertilizer
Publication Date：2016-08-31
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 77-83 )