樟树种源/家系早期生长性状与选择  

Study on Provenance/Family Test and Early Selection of Cinnamomum camphora

作　　者：魏永平 WEI Yongping(State-owned Forest Farm of Yong′an,Fujian Province,Yong′an 366000,Fujian,China)

机构地区：[1]福建省永安国有林场,福建永安366000

出　　处：《福建林业科技》2020年第2期1-5,共5页Journal of Fujian Forestry Science and Technology

基　　金：福建省林木种苗科技攻关第二期项目(樟树楠木良种繁育技术研究,ky200306/ky0180024)。

摘　　要：2018年对福建省永安国有林场5个种源31个家系的樟树试验林生长性状及遗传参数进行测定,结果表明:不同种源、家系10年生保存率、树高、单株材积存在极显著差异,胸径存在显著差异。以单株材积为依据,初选出永安、南平等2个速生优良种源,平均树高7.62 m、胸径11.56 cm,平均单株材积0.057116 m 3,遗传增益30.54%;初选出Ya-2、Np-4、Np-5、Yp-24等4个速生优良家系,平均树高7.72 m、胸径12.69 cm,平均单株材积0.059841 m 3,遗传增益38.38%。In 2018,the growth traits and genetic parameters of Cinnamomum camphora test stand were measured.The test stand was established on Yong′an National Forest Farm with 31 families of 5 provenances.The results showed that there were significant differences on the preservation rate,tree height and stem volume among provenances or families at 10-year.And there were differences on DBH.Based on the single stem volume,2 superior fast-growing families with 7.62 m of average height,11.56 cm of average DHB,0.057116 m^3 of stem volume(average genetic gain,30.54%),such as Yongan and Nanping,and 4 superior fast-growing individuals with 7.72 m of average height,12.69 cm of average DHB,0.059841 m^3 of stem volume(average genetic gain,38.38%)had been selected.

关 键 词：樟树 种源 家系 生长性状 早期选择 

分 类 号：S722.33[农业科学—林木遗传育种] S792.23[农业科学—林学]