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文冠果(Xanthoceras sorbifolia Bunge)是我国北方重要的油料树种。本试验通过对文冠果大、小孢子及胚和胚乳形成过程的仔细观察,并对两种不同性别的花(雄花和两性花)的小孢子发育情况进行了观察比较。以便为文冠果的栽培、抚育管理及育种等方面提供一些依据。现将观察结果报告如下。一、材料和方法观察材料采自银川苗木场6年生文冠果引种园。从4月下旬开始每隔两日分别按不同性
Xanthoceras sorbifolia Bunge is an important oilseed species in northern China. In this experiment, through careful observation of the process of the formation of large and small microspores and embryo and endosperm, we observed and compared the microspore development of two different sexes (male and female). In order to provide some basis for the cultivation, management and breeding of Wenxuanoguan. The observations are reported below. First, the material and method Observation material collected from Yinchuan nursery stock 6-year-old Wen Guanqiu garden. From late April every two days, respectively, according to different sex