大旺山楂是寒地的主要栽培品种之一。广泛地分布在吉林等省区。存在着开花多、自花授粉结果少等缺点。一般每个花序平均21朵花,只座果3.16个。这是大旺山楂单品种栽植产量低的首要原因。为了选择大旺山楂的授粉树,提高其产量。几年来我们进行了授粉组合搭配和开花物候期的观察。 Hawthorn Dawn is one of the major cultivated species in the cold. Widely distributed in Jilin and other provinces. There are many blooming, self-pollination less shortcomings. An average of 21 flowers per inflorescence, fruit 3.16 only. This is the main reason for the low production of monocotyledonous hawthorn. In order to choose pollination tree Hawthorn, to increase its production. Over the past few years we conducted a combination of pollination and flowering phenology observation.