苹果轮纹病(Physollospora piricola Nose)是80年代以来最严重的烂果病害之一。苹果轮纹病菌一般条件下不易产生分生孢子,这影响了对其生物学特性、致病机理和药剂毒力的研究,因而探索其产生所需要的条件和在田间产孢的影响因子是十分必要的。研究5种树二年生枝条(桃、苹果、梨、刺槐、杨树)对分生孢子器和分生孢子产生的影响表 Physalospora piricola Nose is one of the most serious rotten diseases since the 1980s. Under the general conditions of apple rotifers is not easy to produce conidia, which affects its biological characteristics, pathogenesis and drug toxicity research, and thus explore the conditions required for its production and sporulation in the field impact factor is very necessary. Effects of biennial branches (peach, apple, pear, black locust, poplar) on the development of conidia and conidia