果树由于花器不全、自花不孕或他花不亲合,需要异花授粉。异花授粉是保证获得高产优质的必要条件。我们对适于西宁地区生长的五个梨树品种(1984—1985年)进行的受精选择性试验,就是要选出理想的授粉树种,从而达到高产优质。试材和方法一、试材: 供试主栽品种为本院试验果园12—13年生的身不知、日面红、56—11—155、锦香、早酥等5个品种,授粉品种有苹果梨、身不知、日面红、巴梨、江岛、栖霞大香水、 Fruit tree due to incomplete flower, self-infertility or he is not flower, need cross-pollination. Cross-pollination is necessary to ensure high yield and quality. The selective fertilization test of five pear varieties (1984-1985) suitable for growing in Xining region is to select the ideal pollinated species to achieve high yield and good quality. Test materials and methods First, the test material: The main varieties tested for the test Orchard 12-13 years old body I do not know, reddish, 56-11-155, Jin Xiang, as early as crisp five varieties, pollination varieties Apple pear, I do not know, the Japanese red, pear, Enoshima, Qixia perfume,