Title: Effects of Irrigation and Nitrogen Application on Grain Yield,Protein Content and Quality Traits of Winter Wheat in High-yielding Area
Abstract: To evaluate the regulating effects of different irrigation and nitrogen application rates and their interaction on grain yield,protein content and quality traits of winter wheat,wheat cultivar Pingan 8was used in a field experiment in Wenxian county(N34°92′E112°99′),a high-yielding wheat planting area in Henan Province.The experiment was a split-block design with 3irrigation regimes and 4nitrogen application rates.The results indicated that the regulating effect of nitrogen on grain yield and quality traits was greater than that of irrigation,and that of the interaction between nitrogen and irrigation was the smallest.Grain yield,protein yield,protein content and its composition,and some flour quality traits were significantly improved with increasing of nitrogen application rate,while the hardness and the test weight of grain was decreased.Although there was no obvious difference on hardness and test weight among the nitrogen treatments,significant differences with no-nitrogen treatment(N0)were found.In this experiment,the highest value of the nitrogen partial factor pro-ductivity was obtained at the nitrogen rate of 180kg/hm2.Irrigation significantly improved grain yield,protein yield and flour water absorption,but obviously decreased protein content,grain hardness,test weight,and some flour quality traits such as forming time and stable time,etc..In addition,significant interactions between irrigation and nitrogen were also obtained on grain yield,protein yield,protein content,grain hardness and test weight in this experiment.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 2
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