银杏苗木“四观”鉴别法湖北省孝感师专林特系龚平银杏嫁接苗只需５—６年即可进入盛果期，且产量高、品质好。但用户对嫁接苗与实生苗又真假难辨，现将二者区别特征介绍如下：一、观皮：实生苗（即未经嫁接或扦插而由种子直接长成的苗木）的枝条皮灰白色，光滑且亮，皮孔... Ginkgo seedlings “Four View” Identification Method Xiaogan Teachers College of Hubei Province Gong special gingko grafted seedlings just 5 to 6 years to enter the full fruit period, and high yield, good quality. But the user of grafted seedlings and seedlings are true and false, now the difference between the two features are described below: First, the skin: seedlings (that is, without grafting or cuttings directly from the seedlings grow into the branches of gray leather , Smooth and bright, leather hole ...