摘要 [目的]探讨樟子松生长动态规律，分析与评价家系子代的遗传效应。[方法]以樟子松天然群体家系子代为研究对象，在引种栽培与驯化的基础上，系统开展家系子代的生长节律、遗传变异、生态适应性和抗逆性分析，综合评价了遗传力和遗传增益等遗传参量的遗传效应。[结果]樟子松生态适应性和生态耦合性较强，可快速适应新的生态环境，但是群体间生长性状存在一定变异，其中树高性状变异较小，年均生长量变异较大，平均变异系数分别为20.81%和22.36%；樟子松群体的家系遗传力较强，遗传增益较高，遗传效应显著，树高、2013年生长量和平均生长量3个性状的家系遗传力分别为0.999、0.984和0.993，遗传增益分别为16.64%、19.57%和1776%。[结论]推荐NGF为优异群体，群体内家系间遗传分化较小，遗传增益较高，生长潜力较大，具广泛推广应用价值。

关键词 樟子松；生长动态；引种驯化；遗传效应；遗传增益；遗传力

中图分类号 S791.253 文献标识码 A 文章编号 0517-6611（2014）27-09412-03

Introduction， Domestication and Comprehensive Evaluation on Heredity Effects of Pinus sylvestris

LAN Shibo

（Forestry Research Institute of Heilongjiang Province， Harbin， Heilongjiang 150081）

Abstract [Objective] The growth rhythm and heredity effects of Pinus sylvestris were evaluated. [Method]The progeny from natural populations of Pinus sylvestris were employed to analyze and evaluate the growth rhythm， the heredity variance， the ecological adaptability， the heritability， genetic gain and heterosis on the heredity effects. [Result] Pinus sylvestris had stronger ecological adaptability and coupling， and it can easily adapt to the new ecological environment， the coefficients of variance of seedling height （20.81%） were smaller， but its current increment of height （22.36%） were larger among families. Meanwhile its growth character had strong heritability， high genetic gain， and remarkable heredity effects. The heritability of seedling height， the increment of height in 2013 years， and current increment of height were 0999， 0984 and 0.993， and the genetic gain were16.64%， 19.57% and 17.76%. [Conclusion]It recommended model NGF for outstanding group which has extensive application value. The genetic differentiation between groups within the family was small with high genetic gain and large growth potential.

Key words Pinus sylvestris； Growth dynamic； Introduction and domestication； Heredity effect； Genetic gain； Heritobility

全世界用材林树种资源十分丰富，每个树种都具有各自的自然分布区。受地理变迁、传播条件和各种障碍因素的影响，每个树种的自然分布区并非其最佳适生区，在其他地区可能更适宜其生长发育^[1]。中国幅员辽阔，自然条件复杂多变，生态气候区多种多样，具备利用不同地理条件引种其他自然分布区优异种质的可能性。

林木引种驯化是人类利用、拯救、改良和保存林木种质资源的重要手段。在自然条件相对较差、树种资源匮乏的地区，针对性地引进珍贵的林木种质对丰富林木种质资源的遗传多样性、调整林分结构、改善人工林的品质、提高林地生产潜力意义重大而深远。……