小麦根腐病是小麦全生育期的病害,从幼苗到结粒都有发生,引起小麦苗腐、叶枯、穗腐和黑胚,降低种子发芽率,削弱种子发芽势,叶片早枯,子粒瘦秕,成穗率和结实率下降,导致产量下降。本文着重报导对根腐病造成的产量与经济损失的研究结果。 Wheat root rot is the disease during the whole growth period of wheat and occurs from the seedlings to the grain, causing seedling rot, leaf blight, ear rot and black embryo, reducing the seed germination rate, weakening the seed germination potential, Thin skin, into a spike rate and fruit rate decreased, leading to decline in production. This article highlights the results of research on yield and economic losses caused by root rot.