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植物研究 ›› 2016, Vol. 36 ›› Issue (4): 588-595.doi: 10.7525/j.issn.1673-5102.2016.04.015

• 研究报告 • 上一篇    下一篇

不同地点杨树无性系树高和胸径变异分析及生长模型构建

司冬晶1, 张鑫鑫1, 韩冬荟1, 金允哲2, 董元海2, 赵光浩3, 冷伟伟3, 赵曦阳1   

  1. 1. 东北林业大学林木遗传育种国家重点实验室, 哈尔滨 150040;
    2. 龙井市林业局, 龙井 133400;
    3. 龙井市开山屯林场, 龙井 133400
  • 收稿日期:2015-12-03 出版日期:2016-07-15 发布日期:2016-06-15
  • 通讯作者: 赵曦阳,E-mail:zhaoxyphd@163.com E-mail:zhaoxyphd@163.com
  • 作者简介:司冬晶(1990-),女,硕士研究生,主要从事杨树遗传改良工作。
  • 基金资助:
    中央高校青年教师自主创新基金项目(2572014BA13)

Variance Analysis and Growth Model Building of H and DBH of Poplar Clones at Different Sites

SI Dong-Jing1, ZHANG Xin-Xin1, HAN Dong-Hui1, JIN Yun-Zhe2, DONG Yuan-Hai2, ZHAO Guang-Hao3, LENG Wei-Wei3, ZHAO Xi-Yang1   

  1. 1. State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040;
    2. Forestry Bureau of Longjing, Longjing 133400;
    3. Kaishantun Forestry Farm of Longjing, Longjing 133400
  • Received:2015-12-03 Online:2016-07-15 Published:2016-06-15

摘要: 以不同地点30个白杨杂种无性系为材料,对其不同树龄的树高和胸径进行调查,对获得数据进行变异分析并构建生长曲线模型,方差分析结果表明地点间、无性系间、地点与无性系交互作用间均达到极显著差异水平(P<0.01);树高和胸径表型变异系数变化范围分别为15.34%~23.80%和19.42%~31.88%;所有性状重复力较高,变化范围为0.7977~0.9859;模型构建结果表明,根据杨树无性系苗期树高和胸径构建的指数函数模型拟合度r2分别达0.82和0.87,拟合效果较好。利用模型对未测定数据进行估算,无论树高还是胸径,冠县无性系的最初生长量最高,而峰峰的树高和威县的胸径生长速率最快。基因型与环境具有明显的交互作用,不同无性系在相同地点表现差异较大,相同无性系在不同地点也呈现明显差异,表明无性系评价选择需要考虑环境因素,适地适树的进行选择。构建的模型可以为林木生长量预测提供理论依据。

关键词: 白杨, 树高, 胸径, 生长模型, 变异

Abstract: Thirty poplar clones in different sites as materials and tree height(H), diameter at breath height(DBH) of different clones were investigated to calculate the variance parameters and build growth models. The result showed that there exit significant difference(P<0.01) among sites, clones and the interaction of site with clone in traits H and DBH. The coefficient variation of phenotype(PCV) of H and DBH ranged from 15.34% to 23.80% and 19.42% to 31.88%, respectively. The repeatability(R) of all the investigated traits ranged from 0.7977 to 0.9859, which indicated a high repeatability values. The degree of fitting of H and DBH models were 0.82 and 0.87, respectively, which showed a perfect imitative effect. With the help of model to estimate the data which were not measured, Guanxian showed the highest initial H and DBH values but Fengfeng and Weixian suggested the highest growth rates for H and DBH, respectively. There was obvious interaction between genotype and environment and whatever the different clones in same site or the same clone in different sites there were all exist larger difference in H and DBH, which indicated that the environment factors should be considered when excellent clones were evaluated and selected.

Key words: poplar, tree height, diameter at breath height, growth model, variance

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