杉木大径材定向培育良种效应研究  

Study on Improved Varieties Effect of Big-diameter-oriented Cultivation Techniques of Chinese fir

作　　者：曾志光[1] 黄小春[1] 罗坤水[1] 汪维[1] 陈友根 聂煜 王城辉 陈康 邹生根 姜云飞 

机构地区：[1]江西省林业科学院,江西南昌330032 [2]铜鼓县林业局,江西铜鼓336200 [3]永丰县官山林场,江西永丰331506 [4]德兴市林业局,江西德兴334200

出　　处：《江西林业科技》2007年第5期4-6,38,共4页Jiangxi Forestry Science and Technology

基　　金：江西省林业厅科技攻关项目<杉木大径材培育技术研究>(9701)的部分研究内容

摘　　要：种苗是林业生产的重要物质基础,选用良种造林是实现林木速生、丰产、优质的重要措施。通过对江西铜鼓、永丰、德兴3个杉木主要造林区1987～1991年营造的杉木速生丰产林进行良种造林对比试验,结果表明:在相同的经营条件下,由种源到优良种源中的优良无性系造林具有种质的叠加效应,其叠加效应在胸径和材积生长上表现尤为突出,优良种源培育大径材比普通种源材积生长要提高30%左右,而用优良种源中选育出的优良无性系培育大径材,在种源的基础上又要提高20%以上,且林分大径木比例明显增加。Seedling is an important material base for forest growth. Selecting improved varieties is an important measure of achieving forest fast development, high yield, high quality. Contrast experiment of improved varieties planting was made using three primary Chinese fir afforestations in Tonggu, Yongfeng, Dexing of Jiangxi province,which made in 1987 - 1991. Results showed superior clones planting from provenance to varieties provenance had germplasm synergistic effect in the same working condition, and its synergistic effect was manifested markedly in diameter and volume. Big-diameter timber of varieties provenance increased about 30% compared to common provenance volume. Moreover, big-diameter timber, cultivated in superior clones selected from superior Provenance. increased more 20% in the nrovenance base. and that proportion of stand bia-diameter wood increased markedlv.

关 键 词：杉木 大径材 良种效应 

分 类 号：S791.27[农业科学—林木遗传育种]