摘要
欧洲赤松具有广泛分布和较大生态幅,适应多种类型土壤。引种栽培结果表明:在我国高寒地区,欧洲赤松生长节律与樟子松基本一致,群体间子代苗高、针叶长度和针叶数量3个性状相关程度紧密,生长较快,子代的针叶较长、数量较多。群体间子代地径性状差异显著,苗高性状差异极显著;群体内地径性状变异较小、苗高性状变异较大,平均变异系数分别为29.94%、42.59%。综合考虑群体间苗期生长状况、生长适应性及定植子代地径和苗高2个性状的遗传和变异,筛选出CT、FL2优良群体2个。
The distribution and ecological breadth of Pinus sylvestris were comparatively broad, and it may adapt to various kinds soil. The results of introduction and cultivation show that the growth rhythm of P. sylvestris was consistent with that of P. sylvesris, var. mongolica. The height of seedlings, length of leaves, quantity of leaves were closely related among population progeny. There were longer needles and more leaves on the progeny of quick growth population. The ground diameter traits were significant difference and the seedlings height traits were extremely significant difference between population progeny. The variations of the ground diameter was slightly and the variations of the seedlings height was large within population progeny, and the average variation coefficient was 29.94% and 42.59%, respectively. The superior populations were selected as CT and FL2 population by synthetically estimated the index on growth traits, adaptability and the variation of ground diameter and seedlings height in cultivated progeny.
出处
《林业科技开发》
2010年第3期22-25,共4页
China Forestry Science and Technology
基金
国家重大科技基础平台"北温带种质资源基本库标准化整理与共享(2005DKA21003-02)"
"十一五"国家科技支撑计划"林木
花卉基因资源发掘与种质创新利用的研究(2006BAD13B07)"
关键词
欧洲赤松
生长性状
变异分析
群体选择
Pinus sylvestris
growth traits
variation analyse
selection of population
