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Effect of Top -dress Nitrogen Application Amount on Grain Protein Content and Flour Processing Quality in Different Winter Wheat

FENGMing, ZHAOGuang-cai, CHANGXu-hong, YANGYu-shuang, MAShao-kang, YANGGui-xia   

  1. Institute of Crop Sciences, Chinese Academy of Agriculture Sciences, Beijing 100081, China
  • Received:2009-03-11 Published:2009-12-31

Abstract: In order to study the effect of different top -dress nitrogen application amount on protein content and itscomponents and flour processing quality in winter wheat,a field experiment using four winter wheat cultivars with threedifferent top -dress nitrogen treatments (B1,only base nitrogen application 120 kg/ha ;B2,base nitrogen 120 kg/ha andtop -dress nitrogen 120 kg/ha ;B3,base nitrogen 120 kg/ha and top -dress nitrogen 240 kg/ha)was conducted in Beijingexperiment site of the Institute of Crop Sciences,Chinese Academy of Agricultural Sciences in 2007 -2008 growthseason .The result showed that the total protein and its components were increased with the top -dress nitrogen from 0 to240 kg/ha,especially,the total protein and glutelin content had a significant (P <0 .05)positive correlation with top -dress nitrogen application amount(r =0 .998*,0 .999*).By top -dress nitrogen treatments,the main characteristics ofprocessing quality were improved with increasing the applied nitrogen within a certain range .Comparing with no top -dress nitrogen treatment ,many important quality characteristics of dry and wet glutelin content,stability time and so onwere significantly improve with nitrogen treatments .However there were some significant differences among cultivars .

Key words: Top-dressnitrogen, Winterwheat, Proteincontent, Processingquality

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Cite this article

FENGMing, ZHAOGuang-cai, CHANGXu-hong, YANGYu-shuang, MAShao-kang, YANGGui-xia. Effect of Top -dress Nitrogen Application Amount on Grain Protein Content and Flour Processing Quality in Different Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S1.043.

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