Comparison of Growth and Physiological Responses to Severe Drought between Two Altitudinal Hippophae rhamnoides Populations
文献类型：期刊论文
| 作者 | Yang ; Yao ; Zhang ; Yongqing ; Yinan ; Xuejiang |
| 刊名 | SILVA FENNICA
 |
| 出版日期 | 2010 |
| 卷号 | 44期号:4页码:603-614 |
| 关键词 | WATER-USE EFFICIENCY CARBON-ISOTOPE DISCRIMINATION HERBACEOUS PLANTS OXIDATIVE STRESS BEECH ECOTYPES GAS-EXCHANGE MAIZE LEAVES FREE PROLINE LIGNIN ACCUMULATION |
| ISSN号 | 0037-5330 |
| 通讯作者 | Yang, YQ, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 中文摘要 | Growth and physiological differences in response to drought were compared between two sea buckthorn (Hippophae rhamnoides L.) populations inhabited in the southeast of the Qinghai-Tibetan Plateau of China. The experimental design included two water regimes (100% and 25% of field capacity) and two populations from the low and high altitude zone. Our experiments were conducted in a naturally lit greenhouse under semi-controlled environmental conditions for a whole growing season in a dry valley (1800 m above the sea level). We found that drought tolerance is highly related to the plant antioxidant capacity and water use efficiency as well as leaf nutrient status in H. rhamnoides. The highland population (HP) experienced a greater inhibition in plant growth and leaf enlargement, lower leaf nitrogen and phosphorus content, lower root nodule biomass and root mass/foliage area ratio, and higher leaf water content loss paralleling with higher enhancement of abscisic acid level in response to drought, as compared with lowland population (LP). Additionally, reduction of leaf lignin content in HP further reduced its drought tolerance. On the contrary, LP showed effective adaptation strategies such as improvement of water economy and maintaining high ascorbic acid content. Therefore, we conclude that LP was more tolerant to drought than HP, and could be selected for reforestation in the dry valleys of upper Minjiang River regions in China. |
| 学科主题 | 植物生理学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/9852]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Yang,Yao,Zhang,et al. Comparison of Growth and Physiological Responses to Severe Drought between Two Altitudinal Hippophae rhamnoides Populations[J]. SILVA FENNICA,2010,44(4):603-614. |
| APA | Yang,Yao,Zhang,Yongqing,Yinan,&Xuejiang.(2010).Comparison of Growth and Physiological Responses to Severe Drought between Two Altitudinal Hippophae rhamnoides Populations.SILVA FENNICA,44(4),603-614. |
| MLA | Yang,et al."Comparison of Growth and Physiological Responses to Severe Drought between Two Altitudinal Hippophae rhamnoides Populations".SILVA FENNICA 44.4(2010):603-614. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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