水杉优树无性鉴定初报

• 机 构: 湖北省林科所,华中农学院园林系,潜江县林木良种场,
• 出 处: 湖北林业科技
• 发表日期: 1980年04期
• 关键词: 优树 水杉 潜江县 种子园 速生性 遗传品质 落羽杉 优劣程度 无性系 九七

为加速林木良种繁育,潜江县林木良种场共收集优树一百三十一株,其中水杉四十八株,经过几年努力,现已建成水杉、池杉、落羽杉种子园五百五十亩。这些优树来源不同,其表现各不一致,对根据表型选择的优树,进行优劣程度的测定,从中选出遗传品质优良的无性系,以提高种子园的质量,加速良种繁育,一九七五年以来,我们试求以无性繁殖的方法,鉴定水杉各优树速生性的优劣程度,现将分析结果试述如下。

In order to accelerate the seed breeding of forest trees, a total of 131 superior trees, of which 40 are Metasequoia, were collected from Qianjiang County forest seedling field. After several years of hard work, a total of 550 acres of Metasequoia, Ipomoea Taxus and Taxodium . These superior trees come from different sources and their manifestations are different. The superiority and inferiority of the elite trees selected according to the phenotype are determined, and the clones with excellent genetic quality are selected to improve the quality of the seed orchard and accelerate the breeding of elite seeds. Since 1975, we have tried to identify the merits and demerits of the rapid traits of all tree species of Metasequoia by means of asexual reproduction. The results of the analysis are as follows.