Differences in drought responses of three contrasting Eucalyptus microtheca F. Muell. populations
文献类型：期刊论文
| 作者 | Li, CY ; Wang, KY |
| 刊名 | FOREST ECOLOGY AND MANAGEMENT
 |
| 出版日期 | 2003 |
| 卷号 | 179期号:1_3页码:377_385 |
| 关键词 | abscisic acid carbon isotope composition eucalyptus microtheca growth traits leaf water potential stomatal properties water-use strategy |
| ISSN号 | 0378-1127 |
| 通讯作者 | Li, CY, Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China. |
| 中文摘要 | Changes in dry matter accumulation and allocation, leaf stomatal properties and some aspects of leaf water relations of three contrasting Eucalyptus microtheca F. Muell. populations were recorded after exposure to drought stress. The populations used were from West Kimberleys (northwestern Australia), Central Australia and Walgett (southeastern Australia). In the controlled environment study there were three watering regimes which were watered to 100, 50 and 25% field capacity, respectively. Significant differences in dry matter accumulation and allocation, leaf guard cell length, the minimum daily leaf water potential, carbon isotope composition (described as water-use efficiency) and abscisic acid (ABA) concentration were detected among populations. Compared with the southeastern population, under water deficit the northwestern and central populations had lower biomass production and higher root/shoot ratio, foliage area/stem cross-sectional area ratio and specific leaf area density. The northwestern and central populations also exhibited higher minimum daily water potentials, water-use efficiencies and ABA accumulation as effected by drought than the southeastern population. These morphological and physiological responses to water availability showed that the different populations may employ different survival strategies under drought stress at the initial phase of seedling growth and establishment. The southeastern population possesses a prodigal water-use strategy and quick growth, while the northwestern and central populations exhibit conservative water-use strategies and slow growth. These differences in drought responses maybe used as criteria for genotype selection in and and semi-arid regions. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Forestry |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2011-07-08 |
| 源URL | [http://210.75.237.14/handle/351003/21428]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Li, CY,Wang, KY. Differences in drought responses of three contrasting Eucalyptus microtheca F. Muell. populations[J]. FOREST ECOLOGY AND MANAGEMENT,2003,179(1_3):377_385. |
| APA | Li, CY,&Wang, KY.(2003).Differences in drought responses of three contrasting Eucalyptus microtheca F. Muell. populations.FOREST ECOLOGY AND MANAGEMENT,179(1_3),377_385. |
| MLA | Li, CY,et al."Differences in drought responses of three contrasting Eucalyptus microtheca F. Muell. populations".FOREST ECOLOGY AND MANAGEMENT 179.1_3(2003):377_385. |
入库方式： OAI收割
来源：成都生物研究所
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