Effects of Water on Dry Matter Accumulation and Translocation of Winter Wheat Cultivars during Different Decades
Abstract：Abstract: Seven representative winter wheat cultivars of different decades in central north Henan were selected to study the effects of irrigation on dry matter accumulation, translocation, yield and WUE under two irrigation treatments (W0:no irrigation after returning green stage, Wl:two irrigations at jointing and milky stage respectively). The results showed that irrigation increased dry accumulation and distribution at vegetative organs of winter wheat, and improved photo assimilates translocation of vegetative organs before flowering and the contribution rates to kernels. There had no obvious trend on spike number and kernel number in cultivars succession. Per 1000 kernels, harvest index, yield and WUE showed the increasing trend. Winter wheat cultivars after 1990s had more photo assimilates translocation and distribution into the kernels after flowering and it was the basis of high yield.
Keywords：winter wheatdifferent erasdry matter accumulation and translocationgrain yieldWUE
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：6( 75-80 )