摘要
对林口县青山林场落叶松杂种苗与各优良种源苗（2年生）进行变异分析的结果表明，各种源间存在丰富变异，变异系数在26．8％-46．9％之间，平均为32．8％；各种源间苗高生长量差异极显著，青山种源杂种苗高生长最快，为49．21cm，小北湖优良种源苗高生长最慢，为22．6cm，青山种源高生长比小北湖种源高生长快117．7％；23个落叶松各家系间苗高差异极显著，生长最快的黑龙江青山Q6号家系（58.04cm）比生长最慢的小北湖家系（22.6cm）快156．8％。各家系内苗高存在丰富变异，变异系数在17．5％-46．9％之间，平均为26．3％。种源内家系间苗高差异极显著。
The growth variation of hybrid larch and superior provenance seedlings （2 years old） in Qingshan Forest Farm Linkou County were analyzed. The results showed that there was a rich variation among the provenances. The coefficient of variation was from 26. 8% to 46.9% , and the average was 32.8%. The difference of height growth among provenances was significant. The height growth of Qingshan was the 49.21cm, being maximal. The Xiaobeihu was 22. 6cm, being minimum. The former increased by 1＂17.7% than that of the latter. The height variation was significafltly different among the 23 hybrid larch families. The fastest height growth of Qingshan Q6 family （58.04cm） exceed by 156.8% than the slowest height growth of Xiaobeihu family （22. 6cm） . There was a rich variation of height in families. The coefficient of variation was from 17.5% to 46.9% and the average was 26. 3%. The difference among families in the same provenance was very significant.
出处
《林业科技》
北大核心
2007年第3期3-6,共4页
Forestry Science & Technology
基金
国家自然科学基金(30640034)
国家林业局林业科学技术研究项目(2006-37)
国家林业局六大林业重点工程关键技术应用研究与试验示范专项(2003-016-L16)
关键词
杂种落叶松
优良种源
家系
苗高
变异
Hybrid larch
Superior provenance
Family
Height
Variation
