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梨树和其它植物一样,其多倍体品种与二倍体品种相比较,具有很多特点。一般表现为枝粗、叶大、果大和花大等巨大性;新陈代谢旺盛,酶的活性强,物质合成能力强;抗逆性和适应性也强;但在繁殖能力上则常出现可孕性下降,如花粉量减少,花粉发芽率低,种子少或不饱满,种子出苗率也低。但是,不同种类或品种之间有差异。河北省石家庄果树所曾对鸭梨和大鸭梨进行过观察比较,新疆巴州沙依东园艺场,也对库
Pear trees and other plants, like, its polyploid varieties compared with diploid varieties, has many characteristics. The general performance of branches thick, large leaves, large fruit and flower huge; metabolism, strong enzyme activity, material synthesis ability; resistance and adaptability is also strong; but reproductive capacity often appear fertility Decline, such as reducing the amount of pollen, pollen germination rate is low, less or no seeds, seed germination rate is low. However, there are differences between different species or breeds. Shijiazhuang, Hebei Province, fruit trees have been on the pear and pear were observed and compared, Xinjiang Bazhou Shayi east horticultural field, but also on the library