在异花授粉作物育种中,繁育亲本和杂交制种是必不可少的重要环节。为确保菜籽的纯度和产量,京郊目前多在温室、塑料大棚和网棚等覆盖条件下进行人工辅助授粉制种。用人工授粉的方法,存在着授粉费用高、不均匀、操作中易碰伤植株等问题。为此我们在近1—2年内,进行了“蜜蜂授粉与人工授粉制种对比试验”,结果表明:蜜蜂授粉的大棚黄瓜比人工授粉棚每亩增产28％,多收瓜籽4555.2克。按每克现有售价 In cross-pollination crop breeding, breeding parents and hybrid seed production is an essential part. In order to ensure the purity and yield of rapeseed, the suburbs in Beijing are mostly man-made for pollination and seed production under the conditions of greenhouse, plastic shed and net shed. With artificial pollination methods, there is a problem of high pollination costs, unevenness and easy-to-scratch plants in operation. For this reason, we carried out the comparative test of bee pollination and artificial pollination in the past 1-2 years. The results showed that the bee pollinated greenhouse cucumbers increased 28% per mu and 4555.2 g more seeds per mu than artificial pollination sheds. Price per gram of existing