Effects of Water Table during Grain Filling on Wheat Yield and Its Component
Abstract：In order to examine the suitable water table for wheat during the stage of grain filling in Jianghang plain,two winter wheat（Triticum aestivum L.） c.v.Zhengmai 9023 and Emai 23 was selected to study the effects of different water table（0,15,30,45,60,75,and 90 cm up to the soil surface） during grain filling on wheat yield and its component based on test-pit experiment.The results showed that the yields of two wheat cultivar was severely decreased by 0,15,30,45 and 60 cm water table and that the yields of two wheat cultivar was not effected dramatically by 75 cm and 90 cm water table,indicating that the suitable water table for wheat in Jianghan plain during wheat grain filling was 75 cm.From the analysis of yield component,the yield decline of those water table treatments was due to significant decrease in 1000-grain weight and grain number per ear and was unrelated with the number of effective heads.Furthermore,the waterlogging tolerance of Emai 23 was higher than that of Zhengmai 9023.
Keywords：winter wheatwater tableyield
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 72-74 )