The application discloses a method for improving resistance to wheat scab QFhb-2DL and QFhb- 3BL The application discloses a method for improving resistance to wheat scab, a
molecular marker, a primer, the
molecular marker comprising a dCAPS marker of QFhb-2DL and / or a KASP marker of QFhb-3BL . The application first develops a
molecular marker closely linked to QFhb-2DL and a molecular marker closely linked to QFhb-3BL . Under the premise of stabilizing the resistance to
stripe rust, dwarf, large spike and multiple spike characteristics of a wheat variety in the upper reaches of the Yangtze River, the application realizes molecular design breeding by using the developed new marker closely linked to the locus, and quickly introduces the
disease-resistant genotypes of QFhb-2DL and QFhb-3BL into the wheat variety in the upper reaches of the Yangtze River, breeds a strain which is resistant to scab and has a yield significantly higher than that of a control, and realizes a breakthrough in the resistance to scab in the upper reaches of the Yangtze River.