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玉米植株叶片发红在田间极为常见,主要发生在玉米的苗期和抽雄至灌浆期。叶片失绿变红,减少了叶片的光合面积,降低了光合速率,如果叶片进一步干枯,就会缩短叶片的光合时间,从而影响玉米的光合能力,最终影响玉米产量。从发病特点来看,玉米红叶一般有病毒性、低温冷害型、缺素型、虫害型及遗传性玉米红叶等几种类型。1病毒性玉米红叶
Reddening of the leaves of corn plants is extremely common in the fields, mainly occurring during the seedling and tasseling stages of maize. The leaves turn green and turn red, which reduces the photosynthetic area of the leaves and reduces the photosynthetic rate. If the leaves are further dried, it will shorten the photosynthetic time of the leaves and thus affect the photosynthetic capacity of maize and ultimately affect the yield of maize. Characteristics from the onset point of view, corn leaves generally have viral, chilling damage type, lack of type, pest type and genetic corn leaves and several other types. 1 Viral corn leaves