杉木半同胞子代优良家系决选  

Final Selection of Half-sib Progeny Superior Families of Cunninghamia lanceolata

作　　者：戴俊[1] 覃建强 黄开勇[1] 陈琴[1] 胡美成 肖建军 唐红亮 辛坚 DAI Ju n QIN Jian-qiang HUANG Kai-yong CHEN Qin HU Mei- cheng XIAO Jian- ju n TANG Hong-liang XIN Jian(Guangxi Improved Variety Breeding Center of Chinese fir, Guangxi Academy of Forestry,Nanning Guangxi 530002, P. R. China Xishan Forest Farm of Rong5 an County in Guangxi, Rong＇ an Guangxi 545400, P. R. China)

机构地区：[1]广西林业科学研究院广西杉木良种培育中心,广西南宁530002 [2]融安县西山林场,广西融安545400

出　　处：《西部林业科学》2017年第3期141-145,共5页Journal of West China Forestry Science

基　　金：广西林业科技项目(桂林科字[2014]01号);广西科学研究与技术开发计划项目(桂科能1598025-48);中国林科院中央级公益性科研院所基本科研业务费项目(CAFYBB2017ZA001-1-4);广西重点研发计划项目(桂科AB16380052)

摘　　要：对营建于1985年、引种自全国14个初级种子园的84个杉木半同胞家系子代区域试验林的4个林龄段(5年、8年、26年及30年)的林木生长情况进行统计分析。结果表明,在不同生长阶段,多数家系子代的树高、胸径和材积生长指标均呈极显著差异,且早晚生长表现较稳定。以30年生时的材积作为评选依据,有产自广西、贵州、湖南和福建等省区的15个家系入选为优良家系,其家系平均材积、材积现实增益和遗传增益分别达到0.335 0m3、15.73%和11.93%以上,其中产自广西的入选优良家系平均遗传增益高达65.52%。Introduced from 14 primary seed orchards nationwide, and established from 1985, 84 Cunninghamialanceolata stands of half-sib progeny were analyzed on 4 ages （5-y ear, 8 -y ear, 26 -year and 30 -year） . show ed that there were significant differences among most family progenies in tree heigh t, DBH ferent stages of growth. The growth traits presented stable in juvenile-mature period. According to the volume of30-year-old families, 15 families produced from Guangxi, Guizhou, Hunan and Fujian were finally selected as su-perior families. The average volume, volume gain and genetic gain of the superior families were more than 0. 3350m3,15. 73% and 11. 93%, respectively, among which, the average genetic gain of superior families producedfrom Guangxi was up to 65. 52 %.

关 键 词：杉木 半同胞子代 优良家系 决选 

分 类 号：S791.27[农业科学—林木遗传育种]