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《Journal of Agricultural University of Hebei》 2006-02
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Study on genetic variation of wood chemical properties of Japanese larch clones

DING Biao~1,WANG Jun-hui~(2,3),ZHANG Shou-gong~(2,3),SUN Xiao-mei~(2,3),WANG Xiao-shan~(2,3),LIU Shu-mei~1 (1.Dagujia Forest Farm,Liaoning Province,Qingyuan 113305,China;2.Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China;3.Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration,Beijing 100091,China)  
Genetic variations of wood chemical properties of 10 Japanese larch clones at 10 years were investigated.The result revealed that wood chemical properties had a high significant difference among clones.The contents of water and the contents of holocellulose were independent with growth and stem-form traits. The contents of 1% NaOH extractive was negatively correlated with height,DBH and crown width.The contents of 1% NaOH extractive was negatively correlated with the contents of holocellulose.The repeatability estimates of clones were 0.709 1,0.701 0 and 0.588 8,indicating the contents of water,the contents of holocellulose and the contents of 1% NaOH extractive were under strong genetic control.The average genetic gains were 8.71%,8.70 and 1.19% for the contents of water,the contents of holocellulose and the contents of 1% NaOH extractive if 20% of the best clones was selected.
【Fund】: 国家“十五”科技攻关子课题“落叶松良种选育和高效栽培技术”(2004BA515B0401);; 国家林业局重点项目“落叶松、云杉优质纸浆材良种区域化试验(2003-016-L16)”资助项目
【CateGory Index】: S791.223
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