The content of flavanone and lactone in leaf and the leaf output were studied by randomizing block arrangement of 31 gingko female varieties (strain) and 4 staminiferous plant type single clone.

摘31个银杏雌品种和4个雄株类型的单株无系，机区组排列，对产量状及其与产量的相，黄酮、内酯含量进行了研究。