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不同剂量６０Ｃｏγ射线处理去外种皮的银杏种子，５０Ｇｙ以上剂量处理的种子不能发芽，种胚活力迅速下降而趋于死亡，８００Ｇｙ以下剂量处理后，胚乳仍保持较长时期的活力。２０００Ｇｙ以上剂量使种子失水加快，胚乳失活且变软腐烂，其电导率迅速上升。辐照处理使银杏降种子的呼吸受到较大抑制，有利于贮藏保鲜。银杏种子密封包装后，经５０～２００Ｇｙ辐照处理并在室内常温存放，含水量４０２５％的银杏种子的保质期为２～３个月，当种子含水量降至３５９６％时，保质期可达４～６个月。
The ginkgo seed of exocarp treated with different doses of 60Coγ ray could not germinate, the seed germination energy decreased rapidly and tended to die. After the dose below 800Gy, the endosperm still maintained a long period of activity. 2000Gy above seeds to speed up the loss of seeds, endosperm inactivation and soft rot, the conductivity rose rapidly. Irradiation treatment reduced the respiration of ginkgo seeds greatly, which is good for storage and preservation. Ginkgo seeds sealed packaging, after 50 ~ 200Gy irradiation and stored at room temperature, the moisture content of 40.25% of the ginkgo seed shelf life of 2 to 3 months, when the seed moisture content dropped to 35.96%, the shelf life Up to 4 to 6 months.