木麻黄抗青枯病无性系龙7-18造林试验  

Afforestation trial of bacterial wilt-resistant Casuarina equisetifolia clone "Long 7-18"

作　　者：陈端钦 

机构地区：[1]平潭县林业科技推广站,福建平潭350400

出　　处：《福建林学院学报》2009年第4期311-314,共4页Journal of Fujian College of Forestry

基　　金：国家科技支撑计划资助项目(2009BADB2B02);福建省林木种苗科技攻关项目(木麻黄良种选育与扩繁技术研究)

摘　　要：前人对34个木麻黄优树家系17年生的子代测定林进行选优,筛选出优良单株46株,其中无性系龙7-18在水培无性繁殖出根率、抗青枯病能力和收集圃生长量等指标均表现最好。研究了木麻黄抗青枯病无性系龙7-18在平潭4 a的造林试验结果,该无性系表现出良好的抗逆特性和生长特性,4年生保存率高达87.8%,树高和胸径生长平均值是目前使用无性系(对照)的1.11和1.10倍。木麻黄无性系龙7-18可以作为抗病优良品系在平潭县沿海沙地造林。In a previous study, 46 plus trees of Casuarina equisetifolia were selected from a 17-year-old progeny test plantation of 34 plus tree families, and the best clone ＂ Long 7-18＂ with the highest rooting rate in hydroponics, resistance to bacterial wilt and growth in nursery was selected among those clones. Afforestation trial for bacterial wilt-resistant C. equisetifolia clone ＂Long 7-18＂ was established and trial results of 4 years were presented. The clone ＂Long 7-18＂ showed high stress resistance and growth rate, mean preserving rate was 87.8%, mean tree height and DBH were respectively 1.11 and 1.10 times as great as average of the 2 presently-used clones. ＂Long 7-18＂ is a superior disease-resistant clone of C. equisetifolia for afforestation on coastal sandy land in Pingtan County.

关 键 词：木麻黄 无性系 青枯病 龙7-18 造林试验 

分 类 号：S792.93[农业科学—林木遗传育种]