| 五常市杂种落叶松幼龄期变异分析 |
| |
| 引用本文： | 石宝英.五常市杂种落叶松幼龄期变异分析[J].林业科技情报,2020,52(1):11-13,18. |
| |
| 作者姓名： | 石宝英 |
| |
| 作者单位： | 五常宝龙店种子林场,黑龙江哈尔滨150211 |
| |
| 摘 要： | 以5年生36个杂种落叶松家系为材料,测定其树高、胸径生长性状,估算变异系数、遗传力和遗传增益,筛选出优良家系。结果表明:各家系的树高、胸径存在较丰富变异,树高变异系数小于胸径,树高、胸径极显著相关(P<0.01),家系间树高、胸径差异均达极显著差异水平(P<0.01)。以10%的入选率,初选出家系1317、1324、1318、和1327为优良家系,树高平均增益为15.98%,胸径平均增益为29.46%。
|
| 关 键 词： | 杂种落叶松 生长性状 遗传变异 家系选择 |
Genetic Variation of Hybrid Larch at Juvenile Period in Wuchang |
| |
| Shi Baoying.Genetic Variation of Hybrid Larch at Juvenile Period in Wuchang[J].Forestry Science and Technology Information,2020,52(1):11-13,18. |
| |
| Authors: | Shi Baoying |
| |
| Institution: | (Baolongdian Seed Forestry Farm of Wuchang County,Harbin 150211,Heilongjiang,China) |
| |
| Abstract: | We taked 36 hybrid larch families(5-years-old) as the materials, measured their growth characteristics including height and DBH(diameter at breast height), estimated variation coefficient, heritability and genetic gain, and then selected excellent families. The results showed: there exists abundant variations, The tree height coefficient of variation was smaller than the DBH. There was highly significant correlation between height and DBH(P<0.01). The differences in tree height and DBH between families were extremely significant(P<0.01).With a 10% selection rate, the primary family 1317, 1324, 1318, and 1327 were excellent families, with an average tree height genetic gain of 15.98% and an average DBH genetic gain of 29.46%. |
| |
| Keywords: | Hybrid larch growth characteristics genetic variation families selection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
