木麻黄抗风沙优树子代苗期生长遗传变异研究  

Genetic Variation for Seedling Period of Wind-Resistant Casuarina equisetifolia Progeny

作　　者：李秀明[1] 

机构地区：[1]福建省惠安赤湖国有防护林场,福建惠安362131

出　　处：《防护林科技》2009年第6期27-29,共3页Protection Forest Science and Technology

基　　金：国家"十一五"科技支撑计划项目(2006BAD01A16)

摘　　要：通过对1年生木麻黄抗风沙优树子代苗的苗高统计分析,认为不同家系间苗高生长存在极显著差异,并通过分析发现这种差异主要受遗传因素控制,在遗传变异分析的基础上,选择出了在表型水平和遗传水平上表现优良的木麻黄家系66号和60号为优良家系,入选率为33%,入选家系平均苗高25.26 cm,遗传增益19.91%,选择效果明显。Seedling height of 1-year-old wind-resistant C. Equisetifolia progeny seedling was analyzed. Result shows that： there are significant differences which are mainly controlled by genetic factors among different families of C. equisetifolia; the family No. 66 ＆ 60 were chosen based on the genetic analysis. The select percentage is 33% ; the average seedling height of the chosen family is 25.26 cm; the average genetic gain of volume is 19.91% ; the effect of selection is significant.

关 键 词：木麻黄 抗风沙 遗传变异 苗期 

分 类 号：S792.93[农业科学—林木遗传育种]