苹果、梨、桃在异花授粉时座果率相应提高,特别是对初结果的幼龄果园授粉树少的果园或花期遇到阴雨、刮风、低温冻害等灾害性天气影响,使有效花量大大减少的特殊年份,进行人工辅助授粉,效果更明显。 人工辅助授粉具体操作步骤分为花粉采集、制作、稀释花粉和实地授粉、花粉贮藏,方法如下: 一、花粉采集及制作 选择生长健壮的树,在开花前2～3天花蕾充分膨大(气球期)时结合蔬花进行采集。采粉时用筛子搓 Pear, apple, pear, peach fruit rate in cross-pollination corresponding increase, especially for the early results of young orchards pollination less trees or flowering encountered rainy season, windy, cold damage and other disastrous weather, so that the effective flower The amount of significant reduction in the special year, artificial pollination, the effect is more obvious. Artificial pollination specific steps are divided into pollen collection, production, dilution of pollen and field pollination, pollen storage, as follows: First, pollen collection and production Select robust growth of the tree 2 to 3 days before flowering bud fully inflated ) When combined with flowers collected. Scraping sieve with powder