一、前言从1973年开始,湖北省林业科学研究所、湖北省植物研究所、武汉市园林科研所、武汉市东湖风景区听涛区等单位经过几年广泛的调查研究,共选出池杉优树35株,并按经营目的不同划分了平原丘陵用材型、农田路渠窄冠型和城镇绿化型等三个不同类型,全国许多省市已利用这些优树建立不同类型的种子园。各类型优树都是根据表型选择的。表型是基因和环境相互作用的结果。为了进一步 I. Introduction From 1973, Hubei Institute of Forestry, Hubei Institute of Botany, Wuhan Institute of Landscape Research, Wuhan East Lake Scenic Area and other units listening Tao after several years of extensive research, a total of selected pool fir 35 excellent trees, and divided into three different types of plain hilly timber types, narrow roadway narrow crowns and urban greening types according to different business purposes. Many provinces and cities across the country have used these excellent trees to establish different types of seed orchards. All types of trees are based on phenotype choice. Phenotype is the result of the interaction between genes and the environment. To further