采用31个银杏雌性品种和4个雄株类型的单株无性系，随机区组排列，对叶产量性状及其与叶产量的相关性，叶黄酮、内酯含量进行了研究。
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.
分小区种植，随机区组排列，3次重复，观察测定农艺性状、菌核病发病率、抗倒性和产量等性状。
The agronomic traits, incidence of disease (sclerotinia) and stress resistance (lodging), yield and some other parameters were investigated.
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