关于砀山酥梨气包病害的病因探析

Probe into the causes of air protubeance in dangshan crisp pear

经2002～2005年对采收期与贮藏期砀山酥梨气包病发生情况的调查研究，结果表明：该病属于生理病害，发病原因复杂，与果实采收期早晚、树势的强弱、树龄的大小、施肥喷药以及贮藏条件有关，通常果实采收愈晚、树势愈强、树龄愈小、含氮化肥施用越多、贮藏温度高，通风次数多的情况下，这种病害的发病率就越高。

This paper investigates and studies air protuberance disease of Dangshan Crisp Pear during picking period and storing period respectively from 2002 to 2005 year . The findings show that this disease belongs to physiological disease with complicated causes , such as fruit picking time , strength of the trees , ages of the trees , fertilizing and insecticide spraying and storing condition , Generally , the incidence of the disease will be higher with later picking , stronger or younger trees , using more nitrogen fertilizer , higher storing temperature or more times ventilation .