关键词: 游离小孢子, 游离小孢子, 游离小孢子培养来源的胚状体, 遗传转化, 根癌农杆菌介导法, 基因枪轰击法

Abstract:

In this study, The main research the best way of thinning blossom and remain fruit in the production process on red pear 32.The experiment, with the material of red pear ( variety No. 32) ,has been done by doing experiments on techniques of fruits sequencing and blossom and fruits thinning in the period of flowering, fruit and fruit maturation. The results show that:the Average fruit weight, Transverse Diameter and fruit rusty area significant differences between fruit bits 1-6 that leave only a flower in every inflorescence and fruit bits 1-6 that leave all flowers in every inflorescence, Fruit shape correct and no physiological fruit drop in the fruit bits 2,3 and 4, Meanwhile, retain fruit bits 2,3 and 4 ，with 2 fruits in every fruit bits in a squid has highest in per fruit weight (284.45g),there were significant differences from other ways of leave fruits. It is important to guide significantly for reasonable left fruit and increasing weight of the fruits of Pear