西洋梨矮化资源的生物学特性研究

Study of the Biological Characters of a Dwarf Pear Resource from P.communis

本文对一份来自西洋梨的矮化型资源与目前生产上的主栽品种新高梨、茌梨、小香水梨等进行了生物学特性的观察和比较,结果表明矮化梨的物候期特别是开花期明显偏晚,其树体矮小,枝条短粗,节间短。授粉试验表明,矮化梨与白梨品种有较高的亲和力。另外,解剖分析发现,矮化梨叶片具有较为发达的栅栏组织。

In this study, a kind of dwarf pear resource from P. communis was compared with several varieties used in present production, such as ‘Xingaoli＇ , ‘Chili＇ , ‘Xiaoxiangshuili＇. The result showed that the phenophase of the dwarf pear, especially the blossom phenophase was later substantially than those control varieties. The height of the dwarf pear trees and their one - year old branches and internodes were all very short. Pollination tests indicated that the dwarf pear was highly compatible with the varieties of P. bretschneideri. Furthermore, by dissection analysis, it was found that the leaf of the dwarf pear has more developed palisade.