水分胁迫下7个种源辽东冷杉幼苗水分利用效率差异

腰政懋; 柴源; 冯博; 徐程扬

doi:10.13332/j.1000-1522.20140452

水分胁迫下7个种源辽东冷杉幼苗水分利用效率差异

doi: 10.13332/j.1000-1522.20140452

1.
北京林业大学省部共建森林培育与保护教育部重点实验室,干旱半干旱地区森林培育及生态系统国家林业局重点实验室

基金项目:

北京市教委共建项目(科学研究与研究生培养共建项目)“北京典型城市森林结构合理性研究”。

详细信息

作者简介:
腰政懋,博士生。主要研究方向:工业用材林培育理论与技术。Email: yzm19860315@163.com 地址:100083 北京市清华东路35号北京林业大学林学院。责任作者: 徐程扬,教授,博士生导师。主要研究方向:生态林与城市森林培育理论与技术、林木种苗培育理论与技术。 Email: cyxu@bjfu.edu.cn 地址:同上。

腰政懋,博士生。主要研究方向:工业用材林培育理论与技术。Email: yzm19860315@163.com 地址:100083 北京市清华东路35号北京林业大学林学院。责任作者: 徐程扬,教授,博士生导师。主要研究方向:生态林与城市森林培育理论与技术、林木种苗培育理论与技术。 Email: cyxu@bjfu.edu.cn 地址:同上。

Differences in water use efficiency of Abies holophylla seedlings from seven provenances under water stress

1.
Key Laboratory for Silviculture and Conservation of Ministry of Education, Key Laboratory for Silviculture and Forest Ecosystem in Arid and Semi-arid Area of State Forestry Administration, Beijing Forestry University, Beijing, 100083, P.R. China;

摘要: 以来自辽东冷杉天然分布区之一的辽宁省东部山区的7个种源辽东冷杉当年实生幼苗为研究对象,在温室控制条件下研究了辽东冷杉幼苗在充分供水、轻度胁迫、重度胁迫共3个水分处理条件下的长期水分利用效率(WUEL)、瞬时水分利用效率(WUEI)、叶片稳定碳同位素组成(δ13C)及相互关系,以探讨辽东冷杉幼苗水分利用效率的种源间差异及其对水分胁迫的生理响应机制。结果表明,随着水分胁迫的加剧,7个种源辽东冷杉幼苗的WUEL均呈上升趋势,种源间WUEL仅在重度胁迫条件下差异显著(P0.05),在充分供水和轻度胁迫条件下,种源间WUEL的差异并不显著;WUEI和叶片δ13C也均呈上升趋势,种源间WUEI和叶片δ13C在3种水分条件下的差异均极显著(P0.01)。从单个种源在3种水分条件下的表现来看,WUEL在水分处理间均存在显著(P0.05)或极显著差异(P0.01),而WUEI和叶片δ13C在水分处理间均存在极显著差异(P0.01)。辽东冷杉幼苗的叶片δ13C与其WUEL在各水分条件下均有良好的正相关关系,而且随着水分胁迫的加剧,δ13C与WUEL的正相关程度也越来越紧密,所以叶片δ13C可以作为筛选高水分利用效率种源的有效指标。
- 辽东冷杉 /
- 水分利用效率 /
- 水分胁迫 /
- 稳定碳同位素组成(δ13C) /
- 种源
Abstract: By taking current-year seedlings of Abies holophylla from seven provenances in one of natural distribution areas (i.e., eastern mountainous areas of Liaoning Province) as study objects, we studied long-term water use efficiency (WUEL), instantaneous water use efficiency (WUEI), stable carbon isotope composition (δ13C) of A. holophylla seedlings, and their relationships under three water treatments (sufficient water supply, slight water stress and severe water stress) in greenhouse, in order to reveal the differences in water use efficiency of A. holophylla seedlings among provenances and the mechanisms underlying physiological response of A. holophylla seedlings to water stress. The results showed that with the increase of water stress, WUEL of seedlings from seven provenances increased, and the difference of WUEL among provenances was significant (P0.05) only under severe water stress treatment, but there was no significant difference among provenances under sufficient water supply and slight water stress treatment. WUEI and leaf δ13C also increased, and the differences of WUEI and leaf δ13C among provenances were very significant (P0.01) under three water treatments. The difference of WUEL among different water treatments reached significant (P0.05) or very significant level (P0.01), and the difference of WUEI and leaf δ13C among different water treatments all reached very significant level (P0.01). Leaf δ13C and WUEL of seedlings under each water treatment showed a positive correlation, and this correlation became closer and closer with the increase of water stress. Therefore, leaf δ13C can be the effective index for selecting provenances of A. holophylla with high water use efficiency.
- Abies holophylla /
- water use efficiency /
- water stress /
- stable carbon isotope composition (δ13C) /
- provenance

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[19]	耿玉清, 李国雷, 赵铁珍, 韦艳葵, 周传艳, 薛康, 刘剑锋, 汪杭军1, 王旭, 任强, 李生宇, 党文杰, 李义良, 段文霞, 王立海, 朱小龙, HUALi_zhong, 吴丽娟, 张冬梅, 王兰珍, 方升佐, 刘鹏举, 李雪华, 雷加强, 李振基, 朱波, 杨慧敏, 周宇飞, 苏晓华, 崔同林, 何茜, 刘勇, 黎明, JIANGXi_dian, 余新晓, 周亮, 宋永明, 李建章, 周国逸, 方陆明, 韩士杰, 阎秀峰, 刘勇, 杨娅, 高岚, 尹光彩, 周国逸, 宗文君, 赖志华, 唐小明, 孙向阳, 徐扬, 玲, 程云清, 王新杰, 虞木奎, 王清文, 鹿振友, 王春林, 喻理飞, HEXiu_bin, 徐新文, 张冰玉, 刘锐, 柯水发, 李吉跃, 沈熙环, 李晓兰, 周晓梅, 宋爱琴, 齐涛, 王伟宏, 温亚利, , 李俊清, 李丙文, 陈实, 茹广欣, 国庆, 孙阁, 3, 张志毅, 郭蓓, 陈峻崎, 陈培金, 周玉平, 王建林, 蒋德明, 王晓静, 王旭, 姚永刚, 刘志明, 唐旭利, 长山, 张可栋, 宋湛谦, 陈放, 关少华, 王春林, 赵双荣, 闫俊华, 杨伟伟, 郑凌峰. 不同光照下土壤水分胁迫对长苞铁杉幼苗的作用 . 北京林业大学学报, 2007, 29(2): 76-81.
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水分胁迫下7个种源辽东冷杉幼苗水分利用效率差异

doi: 10.13332/j.1000-1522.20140452

Differences in water use efficiency of Abies holophylla seedlings from seven provenances under water stress

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水分胁迫下7个种源辽东冷杉幼苗水分利用效率差异

doi: 10.13332/j.1000-1522.20140452

1. 北京林业大学省部共建森林培育与保护教育部重点实验室,干旱半干旱地区森林培育及生态系统国家林业局重点实验室

English Abstract

Differences in water use efficiency of Abies holophylla seedlings from seven provenances under water stress

1. Key Laboratory for Silviculture and Conservation of Ministry of Education, Key Laboratory for Silviculture and Forest Ecosystem in Arid and Semi-arid Area of State Forestry Administration, Beijing Forestry University, Beijing, 100083, P.R. China;

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留言板

水分胁迫下7个种源辽东冷杉幼苗水分利用效率差异

doi: 10.13332/j.1000-1522.20140452

Differences in water use efficiency of Abies holophylla seedlings from seven provenances under water stress

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水分胁迫下7个种源辽东冷杉幼苗水分利用效率差异

doi: 10.13332/j.1000-1522.20140452

1. 北京林业大学省部共建森林培育与保护教育部重点实验室,干旱半干旱地区森林培育及生态系统国家林业局重点实验室

English Abstract

Differences in water use efficiency of Abies holophylla seedlings from seven provenances under water stress

1. Key Laboratory for Silviculture and Conservation of Ministry of Education, Key Laboratory for Silviculture and Forest Ecosystem in Arid and Semi-arid Area of State Forestry Administration, Beijing Forestry University, Beijing, 100083, P.R. China;

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