Impact of Drought and Alkali Stress on the Wheat Yield and Grain Quality
To study the influence of drought and alkali stress on yield and quality of wheat,the yield,thousand kernel weight,bulk density,flour yield,protein content,wet gluten content and farinogenic parameters of 7 wheat varieties planted in alkaline soil and non-alkaline soil were compared.The results showed that under the influence of drought and alkali stress,the average yield,thousand-kernel weight,bulk density,and dough weakening degree of the varieties decreased by 27.32％,9.21％,2.82％,and 38.27％,respectively.Meanwhile,the average dry gluten content,dough development time,stability time,and farinograph quality index increased by 9.21％,48.39％,479.31％,and 68.00％,respectively.The average flour yield and water absorption rate decreased by 4.89 and 2.02 percentage,respectively,while the average protein and wet gluten content increased by 2.30 and 2.64 percentage,respectively.The results showed that the yield and water absorption of wheat flour were decreased,but the protein content,gluten content,dough formation time,stability time and flour quality were increased.This study can provide data basis for the application and improvement of wheat varieties in arid-alkali soil.
万方数据
维普
