柏木种子园无性系结实性状遗传变异研究  

Study on Genetic Variation of Seed Bearing Property at Clonal Cupressus funebris Seed Orchard

作　　者：徐高福[1] 金国庆[2] 丰炳财[1] 罗小华[1] 储德裕[1] 唐淑琴[1] 洪苏州[1] 王海生[1] 

机构地区：[1]浙江省淳安县新安江开发总公司,浙江淳安311700 [2]中国林业科学研究院亚热带林业研究所,浙江富阳311400

出　　处：《浙江林业科技》2006年第2期5-9,共5页Journal of Zhejiang Forestry Science and Technology

摘　　要：利用柏木一代无性系种子园中15个无性系75个分株材料,研究无性系结实性状的遗传变异规律。结果发现,不同无性系的结实能力差异巨大,其无性系重复力较高。柏木无性系母树结实主要集中在树冠中上部2/3的树冠层分枝上,其结实量占全株的86％左右。通过性状相关分析,得出理想的柏木种子园高产无性系母树的主要形态特征为:树高中上,树冠浓密适中,冠高长,结实分枝多,树冠上部分枝较长,但下部分枝相对较短,树体外形呈宝塔形。Study on genetic variation of seed bearing property at the first clonal Cupressusfunebris seed orchard by 75 ramets of 15 clones demonstrated that seed bearing capacity had significant difference among clones, but had high repetition ratio. Seeds were set mostly on middle and upper part of the mother tree crown, taking about 86%. Correlated analysis on properties resulted the best morphological characteristics of high-yield clonal mother tree： middling tree height and crown, longer crown height, more bearing branches, longer branchy stem of upper crown, shorter branchy stem of lower crown, pagoda-like tree.

关 键 词：柏木 无性系 种子园 结实性状 分布规律 

分 类 号：S791.41[农业科学—林木遗传育种]