| 不同林龄马尾松的种源选择效果 |
| |
| 引用本文： | 金国庆,秦国峰,刘伟宏,储德裕,丰忠平,周志春. 不同林龄马尾松的种源选择效果[J]. 林业科学, 2011, 47(2) |
| |
| 作者姓名： | 金国庆 秦国峰 刘伟宏 储德裕 丰忠平 周志春 |
| |
| 作者单位： | 1. 中国林业科学研究院亚热带林业研究所,富阳,311400
2. 浙江省淳安县姥山林场,淳安,311700 |
| |
| 基金项目： | "十一五"国家科技支撑项目"农林动植物育种工程"之"高产优质多抗松杉新品种选育"课题，浙江省林业厅林木良种基础研究项目 |
| |
| 摘 要： | 利用1984年营造的马尾松全分布区种源试验林在5,10,15,20和25年生时测定材料,分析种源主要生长性状在不同测定年龄的遗传变异和早期优良种源选择效果.结果表明:胸径、树高和材积等马尾松主要经济性状在种源间存在差异,这种差异有随试验林年龄增长而不断加大的趋势,25年生时各性状最大种源比最小种源分别大94.85%,47.66%和355.68%.虽然材积等主要生长性状在不同年龄间生长与秩次相关均极显著,但由于不同种源的早晚生长习性不尽相同,过早开展种源选择可能会误选或漏选部分优良种源,如把正确入选率控制在90%以上,则马尾松种源试验优良种源早期选择的合理年龄应在10～15年生,其相应的选择强度为材积遗传增益>20%或种源入选率在30%～40%.
|
| 关 键 词： | 马尾松 种源试验 早期选择 选择效果 |
Provenance Selection Effect at Different Stand Age of Pinus massoniana |
| |
| Jin Guoqing,Qin Guofeng,Liu Weihong,Chu Deyu,Feng Zhongping,Zhou Zhichun. Provenance Selection Effect at Different Stand Age of Pinus massoniana[J]. Scientia Silvae Sinicae, 2011, 47(2) |
| |
| Authors: | Jin Guoqing Qin Guofeng Liu Weihong Chu Deyu Feng Zhongping Zhou Zhichun |
| |
| Affiliation: | Jin Guoqing1 Qin Guofeng1 Liu Weihong2 Chu Deyu2 Feng Zhongping2 Zhou Zhichun1(1.Research Institute of Subtropical Forestry,CAF Fuyang 311400,2.Laoshan Forest Farm of Chun'an County,Zhejiang Province Chun'an 311700) |
| |
| Abstract: | A provenance test forest of Pinus massoniana was established in 1984,and the major growth parameters were respectively measured at 5,10,15,20 and 25 years to detect the genetic variation in major growth traits among provenances and to evaluate the selection effect at different test age.Genetic variation in DBH,plant height,and volume index among provenances was detected,and the result demonstrated that the degree of variation was increased with the testing age.The variation coefficient at 25-years was 94.85... |
| |
| Keywords: | Pinus massoniana provenance test early selection selection effect |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
