A comparative analysis of photosynthetic characteristics of hulless barley at two altitudes on the Tibetan Plateau
文献类型：SCI/SSCI论文
| 作者 | Fan Y. Z. ; Zhong Z. M. ; Zhang X. Z. |
| 发表日期 | 2011 |
| 关键词 | altitude apparent quantum efficiency maximum net photosynthesis Tibetan Plateau light response curves leaf anatomy gas-exchange carbon-dioxide temperature plants leaves populations gradient seedlings |
| 英文摘要 | To determine the photosynthetic characteristics of C(3) plants and their sensitivity to CO(2) at different altitudes on the Tibetan Plateau, hulless barley (Hordeum vulgare L. ssp. vulgare) was grown at altitudes of 4,333 m and 3,688 m. Using gas-exchange measurements, photosynthetic parameters were simulated, including the maximum net photosynthesis (P(max)) and the apparent quantum efficiency (alpha). Plants growing at higher altitude had higher net photosynthetic rates (P(N)), photosynthesis parameters (P(max) and alpha) and sensitivities to CO(2) enhancement than plants growing at lower altitude on the Tibetan Plateau. The enhancements of P(N), P(max), and a for plants growing at higher altitude, corresponding with 10 mu mol(CO(2)) mol(-1) increments, were approximately 0.20 similar to 0.45%, 0.05 similar to 0.20% and 0.12 similar to 0.36% greater, respectively, than for plants growing at lower altitude, respectively, where CO(2) levels rose from 10 to 170 mu mol(CO(2)) mol(-1). Therefore, on the Tibetan Plateau, the changes in the photosynthetic capacities and the photosynthetic sensitivities to CO(2) observed in the C(3) plants grown above 3,688 m are likely to increase with altitude despite the decreasing CO(2) partial pressure. |
| 出处 | Photosynthetica |
| 卷 | 49 |
| 期 | 1 |
| 页 | 112-118 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0300-3604 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24073]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Fan Y. Z.,Zhong Z. M.,Zhang X. Z.. A comparative analysis of photosynthetic characteristics of hulless barley at two altitudes on the Tibetan Plateau. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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