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银杏属雌雄异株植物,栽植时必须做到雌雄株的合理搭配,才能保证连年丰产。在生产中,可根据雌雄株形态上明显不同的特征加以鉴别: 1.苗期的区别 雄株在苗期侧枝与主干间夹角内有一较大的叶片,雌株则没有。 2.树冠的区别 同龄树,雌株比雄株矮小。雄株形成树冠时间较晚,枝条层次清楚,呈塔形;雌株形成树冠时间早,枝多而乱,呈广卵圆形。
Ginkgo dioecious plants, planting must be done with a reasonable male and female strains, in order to ensure continuous years of high yield. In the production, according to the male and female plant morphology was significantly different characteristics to be identified: 1. The difference between seedling male plants in the seedling stage and trunk angle between the larger leaves, female plant did not. 2. The difference between the crown Tree of the same age, female plant shorter than the male plant. Male plants form canopy late, branches clear level, was tower; female plant crown early, branches and chaos, was broad oval.