The effects of water, nutrient availability and their interaction on the growth, morphology and physiology of two poplar species
文献类型：期刊论文
| 作者 | Yin, CY ; Pang, XY ; Chen, K |
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2009 |
| 卷号 | 67期号:1页码:196_203 |
| 关键词 | Abscisic acid Carbon isotope composition Dry matter accumulation and allocation Gas exchange Populus Water use efficiency |
| ISSN号 | 0098-8472 |
| 通讯作者 | Yin, CY, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China. |
| 中文摘要 | We exposed cuttings of two poplar species, Populus cathayana Rehder and Populus przewalskii Maximowicz, from Sect. Tacamahaca Spach to two watering regimes (well-watered and water-stressed conditions) and to two nutrient regimes (with or without fertilization) in a greenhouse to determine how fertilization affects the growth, morphology and physiology of poplars under different water conditions. Under stress conditions, changes in early growth and dry matter allocation, and decrease in gas exchange and the related functions are usually observed. Moreover, the measurement of carbon isotope composition (delta C-13) provides an integrated measurement of water use efficiency. And abscisic acid (ABA) is a phytohormone which plays a prominent role in various physiological and biochemical processes related to environmental stresses. So we determine these characteristics and related parameters, and our results showed the following: (1) Fertilization promoted the growth of poplars under well-watered conditions, while under water-stressed conditions its effect on growth was negative. (2) Fertilization increased delta C-13. total N concentration, chlorophyll a/b and intrinsic efficiency of photosystem II (Fv/Fm) but decreased relative water content of leaves, stomatal conductance, transpiration rate and C/N ratio under both well-watered and water-stressed conditions. (3) Fertilization appeared to increase net photosynthesis rate and decrease ABA content under well-watered conditions, while it decreased net photosynthesis rate and increased ABA content under water-stressed conditions. Moreover, compared to P. cathayana, collected from a lower altitude region, P. przewalskii, collected from a high-altitude region, has a slower growth rate and stronger adaptability to drought stress, which perhaps resulted from its chronic adaptability to the low water availability of high-altitude region; but to the nutrient stress. there was no difference between the two species. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved. |
| 学科主题 | Plant Sciences; Environmental Sciences |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [40701181, 30600472]; Outstanding Young Scientist Program of the National Natural Science Foundation of China [30525036]; National Science and Technology [2007BAD50B01] |
| 语种 | 英语 |
| 公开日期 | 2011-07-08 |
| 源URL | [http://210.75.237.14/handle/351003/22360]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Yin, CY,Pang, XY,Chen, K. The effects of water, nutrient availability and their interaction on the growth, morphology and physiology of two poplar species[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2009,67(1):196_203. |
| APA | Yin, CY,Pang, XY,&Chen, K.(2009).The effects of water, nutrient availability and their interaction on the growth, morphology and physiology of two poplar species.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,67(1),196_203. |
| MLA | Yin, CY,et al."The effects of water, nutrient availability and their interaction on the growth, morphology and physiology of two poplar species".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 67.1(2009):196_203. |
入库方式： OAI收割
来源：成都生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。