我国夏播玉米区在玉米苗期常因降雨过多、土壤含水量过高而使幼苗受到涝害,在山东省称为“芽涝”,造成较大幅度减产。采用套种、起垅种植、增施肥料和挖沟排水等措施,对减轻涝害能起到一定作用,但通过遗传改良提高玉米苗期的抗涝性,可能是一条更有效的途径。为了对抗涝性育种提 Summer maize sowing area in maize seedling often due to excessive rainfall, soil water content is too high and seedlings have been waterlogging, in Shandong Province known as “Buds”, resulting in a more substantial cut. The measures such as intercropping, planting and planting, increasing fertilizers and digging ditches can play a role in reducing waterlogging damage. However, it may be a more effective way to improve the waterlogging resistance of maize seedlings through genetic improvement. In order to combat flooding breeding mentioned