论文部分内容阅读
苹果树腐烂病俗称烂皮病、串皮病、臭皮病,是对我国苹果产区危害较重的一种疾病,尤其是对我国北方苹果产区。腐烂病是由一种弱寄生真菌引发的树皮溃疡病,可分为弥散性溃疡、多年性溃疡和一年性溃疡三种。但多表现为多年性溃疡,即溃疡随着苹果树的生长和季节的变化而逐渐扩大,这有可能是苹果树的立地条件不好或者遭受严重冻害造成的。为了使果农减少对苹果腐烂病的担忧,减少损失,本文在此对苹果树腐烂病做出研究。
Apple tree rot disease commonly known as bad skin disease, skeletal disease, odor skin disease, is a serious hazard to our country’s apple producing a disease, especially in the northern apple producing areas. Rot disease is caused by a weak parasitic fungus bark canker disease can be divided into diffuse ulcers, perennial ulcers and three kinds of annual ulcers. However, the performance of perennial ulcers, that is, with the growth of the apple tree and seasonal changes in the gradual expansion of the apple tree may be caused by poor site conditions or suffered severe frost damage caused. In order to reduce the concerns of apple growers on the apple rot disease and reduce the losses, this paper studies the apple tree rot disease.