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, Chunying1; Pang, Xueyong1,2; Chen, Ke3 |
| 刊名 | Environmental and experimental botany
 |
| 出版日期 | 2009-11-01 |
| 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 |
| DOI | 10.1016/j.envexpbot.2009.06.003 |
| 通讯作者 | Yin, chunying(yincy@cib.ac.cn) |
| 英文摘要 | 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(13)c) 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(13)c. 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. |
| WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; ABSCISIC-ACID APPLICATION ; USE EFFICIENCY ; CHLOROPHYLL FLUORESCENCE ; DROUGHT RESPONSES ; GAS-EXCHANGE ; LUISA-AVANZO ; PICEA-ABIES ; NITROGEN ; PLANTS |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| WOS类目 | Plant Sciences ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000270701100026 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2398293 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yin, Chunying |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.SW Univ Sci & Technol, Coll Life Sci & Technol, Mianyang 621010, Sichuan Prov, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Chunying,Pang, Xueyong,Chen, Ke. 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, Chunying,Pang, Xueyong,&Chen, Ke.(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, Chunying,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. |
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来源：中国科学院大学
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