安梨是秋子梨系统代表品种之一,主要分布于冀东北和辽西的燕山山区,年产达1亿kg以上。数百年米燕山山区已形成.安梨重要的商品生产基地,但由于普遍缺乏恰当的授粉树,安梨白花结实又近于零,加之管理粗放和某些年分的花期低温、霜害,以及大部产区立地条件恶劣等,均导至座果率低, An pear is one of the representative varieties of autumn pear system, mainly distributed in the northeastern Hebei and western Liaoning Yanshan mountains, with an annual output of 100 million kg more. However, due to the generally lack of proper pollination trees, the pears have strong and near-zero whiteness, coupled with the extensive management and some low-temperature flowering periods and frost damage as well as most Producing areas of poor conditions, etc., are led to low fruit set,