Preliminary Identification on Drought Resistance in Main Planting and New Spring Wheat Varieties in Xinjiang

Comparative analysis was conducted on the yield of 21 spring wheat varieties under drought and irrigation conditions in Xinjiang,including Xinchun2, Xinchun6, Xinchun10 and Xinchun12 whose yield was higher under the two conditions.It was determined preliminarily that the 4 varieties had stronger drought resistanc. Drought resistance coefficient and index of yield and important economic characters were compared and analysed . The result showed that drought-resistance index was superior to drought-resistance coefficient in representing drought-resistance. Although the drought-resistance index of yield was significantly relative to the yield of drought condition ,it could not completely represent product of drought condition. The identification of different wheat variety drought-resistance should take the yield of drought condition as the dominat factors.