Effects of Different Nitrogen Application Levels on Protein and Starch Quality of Wheat Grain under Salt-stress
ZHAO Chun (Dongying Vocational College,Dongying,Shandong 257091)
[Objective]The study was to provide the theoretical basis for specialized production of high quality specially used wheat in saline-alkali soils.[Method]Salt-tolerant wheat variety Shanrong 3 and salt-sensitive wheat variety Lumai 15 were taken as the materials.The changes of their quality traits in saline-alkali soils under two kinds of nitrogen conditions were studied.[Results]Under saline-alkali soil conditions, the kernel processing quality,dough processing quality and starch quality of Shanrong 3 were better than those of Lumai 15.Increasing nitrogen application could increase the kernel processing quality of Shanrong 3,but it had little influence on kernel processing quality of Lumai 15.The dough quality of the 2 kinds of wheat variety was all increased with the increase of nitrogen applicationrate.The amplification of RVA parameter of Lumai 15 was higher than that of Shanrong 3 in the treatment of increasing nitrogen application.[Conclusion]Under saline-alkali soil conditions,increasing nitrogen application could improve the grain protein quality of salt-tolerant varieties and starch quality of the common wheat varieties.