文冠果花结构特性与结实性的相关性研究

目的]分析文冠果（Xanthoceras sorbifolia Bunge）花结构特性与结实性的相关性。方法]对文冠果不结果树、低产树和高产树的雄性花、两性花和果实结构进行大量的形态学观察和数量统计。结果]文冠果树具有2种类别的花：雄花和两性花。两性花有2种花结构类型：长短花丝花和短花丝花,其中长短花丝花是不孕花,短花丝花是可孕花。单株结果树两性花中的短花丝花数量及比例与其产量呈正相关,且具有一定的遗传稳定性。文冠果树的果实有3种不同的果实开裂方式：3瓣裂果、4瓣裂果和5瓣裂果,其中3瓣裂果占绝大多数,4瓣裂果较少,5瓣裂果罕见。文冠果树的可孕花比例和果实开裂类型所占的比例往往是决定文冠果树是否高产的决定因素,对文冠果品种选育具有一定的现实意义。结论]该研究可以为文冠果优良高产单株的筛选和品种选育提供理论依据。

Study on the Relativity between Floristic Structure and Fecundity of X.sorbifolia Bunge

Objective] The aim was to analyze the relativity between floristic structure and fecundity of X.sorbifolia Bunge.Method] A lots of morphologically observation and statistics were carried out on staminate flowers,bisexual flowers and configuration of fruits of unfruitful plants,low yield trees and high yield trees.Result] X.sorbifolia Bunge has two types of flowers named staminate flower and bisexual flower.Bisexual flower has two types of structures: flower with long and short filament and flower with sh...