灌水量和灌水时期对冬小麦耗水特性和生理特性的影响

以优质冬小麦品种烟农475为试验材料,研究了不同灌水量和灌水时期对小麦的耗水特性、生理特性、籽粒产量及水分利用效率的影响.结果表明:土壤水分过多或不足都会对冬小麦的籽粒产量和产量水分利用效率造成影响,灌水时期的不同也会对冬小麦籽粒产量产生影响.灌5水的处理W4籽粒产量最高,产量水分利用效率也较高,说明W4处理是兼顾高产和节水的最佳灌溉方式.

Effect of Irrigation Amount and Stage on Water Consumption Characteristics and Physiological Characteristics of Winter Wheat

We used the good qualified species Yannong 475 of winter wheat as the study materials,and studied the influences of different irrigation amounts and stages on the water consumption characteristics,physiological characteristics,grain yields and water use efficiency of winter wheat.The results show that excessive and insufficient soil water content would both have affected the grain yields and water use efficiency of winter wheat.And different irrigation stages would also influence the grain yields.In addition,the irrigation treatment W4 has the highest grain yield and higher water use efficiency which shows that W4 treatment is the best irrigation method with higher yields and lower water consumption.