油松有性和无性繁殖植株的多性状比较

李伟; 朱松林; 李悦

油松有性和无性繁殖植株的多性状比较

1 北京林业大学林木花卉遗传育种教育部重点实验室，林木育种国家工程实验室2 山西吕梁山国有林管局上庄油松种子园

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出版历程
- 收稿日期: 1899-12-31
- 修回日期: 1899-12-31
- 发布日期: 2012-01-29

Comparative study on plant traits between sexual and asexual reproduction for Pinus tabuliformis.

1 Key Laboratory for Genetics and Breeding of Forest Trees and Ornamental Plants of Ministry of Education, National Engineering Laboratory for Forest Tree Breeding, Beijing Forestry University, 100083, P.R. China; 2 Shangzhuang Chinese Pine Seed Orchard, Stateowned Forest Administration of Lüliangshan Mountain, Shanxi, 041000, P.R. China.

摘要

摘要: 以油松优树嫁接无性系和自由授粉半同胞家系及随机选择的油松嫁接和种子繁殖植株为材料，研究了油松有性和无性两种繁殖方式在主干生长、树冠结构、木材性质和雌雄球花产量等性状方面的变异，分析了油松有性和无性繁殖植株内性状间的相关程度。结果表明：油松优树嫁接无性系和半同胞家系的树干与木材密度性状指标在无性系间和半同胞家系内差异显著，在无性系不同分株内和半同胞家系间差异不显著，其他观测性状在油松无性系和半同胞家系之间差异不显著，但无性系的主干生长和针叶性状平均指标值高于半同胞家系，无性系幼龄材与成熟材的基本密度相对一致，而半同胞家系幼龄材与成熟材的基本密度差异较大；随机选择的油松嫁接和种子繁殖植株在树冠结构和雌雄球花产量等性状指标间差异显著，在侧枝和材性指标间差异不显著，胸径与分枝角间的相关系数和侧枝相对长度、侧枝相对粗度与早晚材指标间的相关系数正负相反，早晚材均宽与木材密度间的相关程度达到显著水平；不同繁殖方式植株的树高生长、花量、木材密度、早晚材指标之间在遗传上具有相对独立性。研究结果为今后油松的无性系选择、无性系造林和无性系种子园营建提供了理论基础。
- 油松 /
- 有性繁殖 /
- 无性繁殖 /
- 性状变异
Abstract: In this paper, grafted clones and open pollinated halfsib families with plus trees and random selected grafted individuals and seed seedlings of Pinus tabuliformis were used to study trait variation between sexual and asexual reproduction in trunk growing, crown structure, wood properties and cone production. And correlation analyses were conducted among traits in grafted individuals and seed seedlings. Results showed that parameters of tree trunks and wood density were measured relatively consistent within grafted clones and among different halfsib families. Other observed traits demonstrated no significant differences between the halfsib families and the grafted clones of plus trees, but the average value of trunk growth and needle length in the grafted clones were higher than that of halfsib family. Basic density of juvenile wood as well as mature wood was relatively consistent in grafted clones, while it was quite different in halfsib families; randomly selected grafted individuals and seed seedlings had significant difference in traits of crown structure and cone yield，but no significant in lateral branch and wood properties. Correlation coefficients of diameter at breast height with branch angle，comparative length of the branch (rate of branch wide to height of tree) and comparative wide of the branch (rate of branch wide to diameter at breast height) with index of early and later wood were positive and negative contrary，correlations between average wide of the early and late wood and wood density reached significant level. Traits among height growth, strobilus production, wood density，early and later wood were relatively independent. Results of this paper provide the theoretical basis for cloning selection, clonal afforestation and seed orchard establishment of P. tabuliformis in the future.
- Pinus tabuliformis /
- sexual reproduction /
- asexual reproduction /
- trait variation

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6.	尚峰男，宋少宇，田菊，王君. 油松离体花粉管的生长及微丝骨架分布. 林业科学. 2013(04): 34-38 . 百度学术
7.	田菊，尚峰男，宋少宇，王君，康向阳. 油松花粉离体萌发及萌发特征研究. 中国农学通报. 2012(28): 21-27 . 百度学术

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文章访问数: 2174
HTML全文浏览量: 215
PDF下载量: 60
被引次数: 13

油松有性和无性繁殖植株的多性状比较

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出版历程

Comparative study on plant traits between sexual and asexual reproduction for Pinus tabuliformis.

期刊类型引用(7)

其他类型引用(6)

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出版历程

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