一、砧木日本一般使用的栗树嫁接砧木是日本茅栗和中国板栗。为了培育栗树苗木,所使用的砧木是直径一分五厘(1日寸=1.193吋)到五分的二年生或三年生的实生苗。但如果培育很好的一年生苗木也可以使用。在树木上部嫁接更新时,也可以使用直径三日寸以上的大径木,但从效果上看,最好选择直径一寸五分左右,生长旺盛的幼树较好。二、接穗的采集和貯藏采集接穗时,应选择生长状态良好、抗病害较强 First, rootstocks Chestnut rootstocks commonly used in Japan are Japanese chestnut and Chinese chestnut. In order to breed chestnut seedlings, the rootstock used is a biennial or triennial seedling with a diameter of five centimeters (1 inch = 1.193 inches) to five points. But if well-nurtured annual seedlings can also be used. In the upper part of the tree grafting renewal, you can also use the diameter of more than three days in diameter of large-diameter wood, but from the effect point of view, the best choice of about one inch in diameter about five, growing vigorous saplings better. Second, the collection and storage of scions When collecting scion, you should choose a good growing state, strong resistance to disease