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为了早日实现林木良种化,建立无性系种子园,于1977年春,我们在选优的同时进行了扦插试验,结果表明,建柏、柳杉均易扦插成活,一般建柏成活率可达93.3%,柳杉可达80%,现将具体做法简介如下: 一、扦插准备插床为砖砌的普通沙床,插壤属沙壤土。在插床上方搭上一人高左右的架,放置疏竹帘以作遮阴,并配农用塑料薄膜保温。二、插穗选取我们用的插穗是从3年生幼树上剪取的,建柏长15厘米,
In order to achieve early seedling tree planting, clonal seed orchard, in the spring of 1977, we selected the best cuttings simultaneously, the results show that Jianbai, cedar are easy to cuttings, the general survival rate of Jianbai up to 93.3% , Cryptomeria up to 80%, the specific practices are as follows: First, the cuttings for the bed to be inserted into the ordinary brick sand bed, plug the soil is sandy loam. Above the slot to catch a person about the high shelf, bamboo curtains placed for shading, and with agricultural plastic film insulation. Second, the selection of cuttings we use cuttings from the 3-year-old young tree cut, Jian Bo 15 cm long,