杉木优良家系无性繁殖菌遗传效益的研究

• 作 者: 黄世典 刘爱图 蒋建德
• 机 构: 南平市市委,南平市市委,南平市市委
• 出 处: 福建林业科技
• 发表日期: 1991年01期
• 关键词: 杉木 优良家系 无性繁殖 穗条 插条造林 轮伐期 伐根 优树选择 无性系 种子园

一、引言据史料记载,闽北林农插杉造林(即无性系造林)可追溯千年以上的历史。历来林农插杉造林的传统经验是根据杉木伐根大小和所抽发萌芽条的高度和粗度来选择穗条的。我们现在进行优树选择的原理同历代林农选择插杉穗条的原理是一样的。如杉木以30年为一轮伐期,则从插条起源的杉木林分已经是经过三十多代的人工无性系选择了,这是杉木插条造林

I. Introduction According to historical records, afforestation (ie, clonal afforestation) of the forest farmers in Northern Fujian can be traced back to more than a thousand years of history. Traditionally, the traditional experience of afforestation of fir and cedar is based on the height and thickness of cunninghamia lanceolata and the germination buds chosen to select the cane. The principle that we now choose the best tree is the same as the principle that the peasants in the past choose the cedar spike. For example, if the age of Chinese fir is 30 years, the Chinese fir plantation originating from cuttings has been selected by more than 30 generations of artificial clones, which is the afforestation of fir cuttings