Effects of Different Water Treatments on Yield and Water Use Efficiency of Yannong 0428
Li Linzhi
Yan Meiling
Sun Xiaohui
Sun Nina
Yu Jingchuan
Jiang Hongming
Abstract：The effects of different water treatments on the yield,yield components and water use efficien-cy of Yannong 0428 were studied in field.The results showed that the biological yield,economic yield and e-conomic coefficient of wheat decreased with the drought degree increasing.The biological yield and economic yield of Yannong 0428 decreased markedly when the soil water content below 60%,which showed 60% was the critical water content point.The relative soil water content of 60% was the critical value fitted to keep more than 6 million spikes per hectare from sowing to jointing and kept 1 000 -grain weight over 40 g from jointing to grain filling.The economic yield and water use efficiency of treatment 6 were 9 200.4 kg/hm2 and 24.81 kg/(hm2 ·mm)respectively,which indicated that the water use efficiency(WUE)increased with the soil water content increasing in a certain range,and the WUE declined when the relative soil water content was out of the range.
Keywords：WheatYannong 0428Water use efficiencyEconomic yield
Publication Date：2015-06-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 22-25 )