摘要
对林口县青山林场胡桃楸 1年生苗高生长变异进行了分析。胡桃楸种源间和种源内部存在丰富的变异 ,变异系数范围在 2 6 0 %～ 32 7%之间 ,平均值为 2 8 7%。 3个种源间苗高差异极显著 ,其中 ,铁力种源高生长较快 ;穆棱种源高生长最差 ;最优种源与最差种源高生长相差 2 5 %。 12 7个家系间苗高差异极显著 ,苗高前 10名家系中有铁力种源 9个家系、穆棱种源 1个家系 ,前后 10名家系高生长相差 138% ,种源内家系间存在丰富的遗传变异 ,变异系数在 11 7%～ 4 8 2 %之间。
The height growth variation of Juglans mandshurica was analyzed.The studied materials are one year old seedlings in Qingshan Forest Farm of Linkou County.The study shows that there are rich variations within and among germ plasm resources,which the variations parameter fluctuates from 26.0% to 32.7% and the average level is 28.7%.The differences of seedling height growth among three germ plasm resources reach the extreme marked level.The height growth of Tieli germ plasm resource is the fastest and that of the Muling germ plasm resource is the slowest.The difference between the two families is 25%.There are extreme marked variations on seedling height among 127 families.In the 10 highest families,there are 9 families from Tieli and 1 from Muling.The difference between the 10 highest and lowest families is 138%.There are abundant of variations between the families in germ plasm resources and the variation parameter is from 11.7% to 48.2%.
出处
《林业科技》
北大核心
2004年第4期1-3,共3页
Forestry Science & Technology
基金
黑龙江省科技厅项目资助
黑龙江省森林工业总局项目资助
关键词
胡桃楸
苗木
苗高
种源
家系
变异
Juglans mandshurica
Seedling height
Germ plasm resources
Family
Variation
