尾叶桉抗白蚁速生家系的筛选  

Selection of Fast-growing Family of Eucalyptus urophylla with Resistance to Termite

作　　者：李光友[1] 徐建民[1] 陆钊华[1] 

机构地区：[1]中国林业科学研究院热带林业研究所,广州510520

出　　处：《中国农学通报》2016年第10期30-35,共6页Chinese Agricultural Science Bulletin

基　　金：十二五"高产;抗逆桉树新品种选育研究"(2012BAD01B04-1);热林所/国营雷州林业局科研合作项目"杂交桉优良无性系选育研究"(2011-2015)

摘　　要：为防止地力衰退和病虫害危害加剧,有必要筛选蕴含丰富基因资源的种源/家系林。选取生长及白蚁危害等级等指标,对广东江门的种源/家系林117个尾叶桉家系的生长和虫害进行调查。结果表明在117个家系中有41个家系没有白蚁危害,最终确定8个生长快且抗虫的家系入选为优良家系;117个家系的平均单株材积遗传力达到0.3640,8个入选家系的遗传增益达到8.66%。To protect the soil and prevent serious diseases and insect pests caused by extensive planting of single variety, it is necessary to select new provenance/family forest with abundant gene resources. In thispaper, growth and insect resistance to termite of 117 families of 6-year-old Eucalyptus urophylla were studied.The results indicated that there were 41 families that could resist to termite. Finally 8 fast-growing familieswith resistance to termite were selected as the superior families. The average heritability of individual treevolume of the 117 families was 0.3640, and the genetic gain of the 8 superior families was estimated to be 8.66%.

关 键 词：尾叶桉 白蚁 抗性 家系选择 

分 类 号：S722.5[农业科学—林木遗传育种]