冬黑麦种植地区白粉病危害极为严重,育种者面临的任务就是选育抗白粉病的品种。在培育具有矮秆优势的品种时,这一问题尤其重要,因为矮秆品种分蘖力较强,抽穗较迟,叶片排列较紧密,从而为病原体的发育造了有利条件。 Powdery mildew is extremely endangered in areas where winter rye is grown, and breeders are challenged to breed powdery mildew-resistant varieties. This problem is particularly important when cultivating cultivars with dwarfed advantages because dwarfing varieties have strong tillering ability, late heading, and leaf arrangement more closely, which provides favorable conditions for the development of pathogens.