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高山松与亲本种多种群在高海拔生境下的苗期适应性研究

花匠小妙招
2025-07-07 04:52

文章导航 > 北京林业大学学报 > 2012 > 34(5) : 15-24.

张立沙, 代剑峰, 高琼, 刘灏, 张华, 赵伟, 毛建丰, 李悦. 高山松与亲本种多种群在高海拔生境下的苗期适应性研究[J]. 北京林业大学学报, 2012, 34(5): 15-24.

引用本文: 张立沙, 代剑峰, 高琼, 刘灏, 张华, 赵伟, 毛建丰, 李悦. 高山松与亲本种多种群在高海拔生境下的苗期适应性研究[J]. 北京林业大学学报, 2012, 34(5): 15-24.

ZHANG Li-sha, DAI Jian-feng, GAO Qiong, LIU Hao, ZHANG Hua, ZHAO Wei, MAO Jian-feng, LI Yue. Seedling adaptation of hybrid pine Pinus densata and its parental species in the high elevation habitat.[J]. Journal of Beijing Forestry University, 2012, 34(5): 15-24.

Citation: ZHANG Li-sha, DAI Jian-feng, GAO Qiong, LIU Hao, ZHANG Hua, ZHAO Wei, MAO Jian-feng, LI Yue. Seedling adaptation of hybrid pine Pinus densata and its parental species in the high elevation habitat.[J]. Journal of Beijing Forestry University, 2012, 34(5): 15-24.

高山松与亲本种多种群在高海拔生境下的苗期适应性研究

张立沙1, 代剑峰1, 高琼2, 刘灏3, 张华3, 赵伟4, 毛建丰4, 李悦1

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 北京林业大学生物科学与技术学院 3 西藏大学农牧学院资源与环境学院4中国科学院植物研究所系统与进化植物学国家重点实验室

计量文章访问数: 02276 HTML全文浏览量: 0224 PDF下载量: 038 出版历程收稿日期: 1899-12-31 修回日期: 1899-12-31 发布日期: 2012-09-29

Seedling adaptation of hybrid pine Pinus densata and its parental species in the high elevation habitat.

1 Key Laboratory of Genetic and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, P.R.China; 2 College of Biological Sciences and Biotechnology, Beijing Forestry University, 100083, P.R.China; 3 College of Resources and Environment, Tibet University, Linzhi，860000, P.R.China; 4 State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing，100093, P.R.China.

摘要

摘要: 为了检测高山松在高海拔生境下苗期适应性是否优于其亲本种（油松与云南松），阐明高山松相比于亲本种在其特有的高原生境下的苗期适应性特点，选择了代表高山松及其亲本种遗传变异的多个种群，在高海拔生境下对比分析了3个种13个苗期适应性性状指标。结果表明：大部分苗期适应性性状指标在种间及种内群体间差异显著，主要变异存在于种间及种内群体间，并且10月保存率、10月封顶率和二次生长率等性状方差分量大部分居于种间，种内变异稳定，是体现种间苗期适应性差异的重要指标。高山松大多数的适应性指标居于亲本种之间，其出苗率、保存率高于云南松，低于油松；封顶期晚于油松30 d左右，而云南松不封顶（2年生苗部分封顶）；在苗木生长表现上高山松超过亲本种，苗高、叶子红色和紫色比例也大于亲本种，且2年生苗木有二次生长；油松的封顶率和保存率为最高，云南松相应指标为最低值。这些结果表明高山松较油松有更长的生长期，比云南松有更强的适应性，是其在高海拔生境下发展成种的部分因素。

关键词: 高山松 / 油松 / 云南松 / 苗期适应性

Abstract: In order to test whether P. densata was more fit in its own highelevation niche than its parental species (P. tabuliformis and P. yunnanensis) and describe their adaptative characteristics in the seedling stage，we conducted a comparative analysis of the seedling adaptative characters in three species. The results showed that most of traits in the seedling stage were significantly different among species and populations, and large amount of variance was identified among species or among populations. The survival rate and the rate of budset in October were the best indicators of amongspecies divergence. The hybrid pine P. densata appeared to be intermediate between P. tabuliformis and P. yunnanensis in most of traits in the early stage. Compared with P. yunnanensis, P. densata had higher germination rate and survival rate, which were lower than P. tabuliformis, and the budset date was 30 days later than P. tabuliformis. The hybrid pine P. densata expressed transgression in four traits of seedling height, the ratios of the red seedlings, the purple seedlings and seedlings of secondary growth, which would reflect its unique adaptation in the highelevation niche. P. tabuliformis was the highest in rates of budset and seedling survival. P. yunnanensis was lowest in seedling survival and only the twoyearold seedlings had signal of budset. P. densata had a longer growing season than P. tabuliformis, and stronger adaptation than P. yunnanensis. That could be one of the reasons about P. densata to become a hybrid in the highelvation habitat.

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计量文章访问数: HTML全文浏览量: PDF下载量: 出版历程收稿日期: 1899-12-31 修回日期: 1899-12-31 发布日期: 2012-09-29