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据我们初步研究,油松髓心形成层贴接成活率与嫁接时期有密切关系。现将研究结果介绍如下: 一、试验材料和方法(一) 嫁接时间:4、5、6、8四个月(二) 嫁接方法:髓心形成层贴接法; (三) 砧木的选择:用2年生或2年半生的一级换床苗做砧木。在嫁接前半年将二、三级苗和等外苗间掉,以扩大一级苗的光照及营养条件,加快高和粗的生长。同时,在春季苗木顶芽抽梢后,摘除侧梢,促使主梢生长。(四) 接穗的选择:选择树冠中上部顶芽饱满的枝条。春季嫁接,选择去年生长一年的
According to our preliminary study, there is a close relationship between the survival rate of the lamina propria and the grafting stage. Now the research results are introduced as follows: First, the test materials and methods (a) grafting time: 4,5,6,8 four months (two) grafting method: pith formation adhesion method; (c) With 2-year-old or 2-year-old first-level bed seedlings do rootstocks. In the first half of the grafting, the second and third seedlings and other seedlings should be swapped off to expand the light and nutrient conditions of the first grade seedlings and speed up the growth of high and coarse seedlings. At the same time, in the spring nursery shoots tip shoots, removal of lateral shoots, prompting the main shoot growth. (D) the choice of scion: Select the crown of the top bud full of branches. Spring grafting, choose to grow last year