Photosynthetic characteristics of linze jujube in conditions of high temperature and irradiation
文献类型：期刊论文
| 作者 | Su, PX; Liu, XM |
| 刊名 | SCIENTIA HORTICULTURAE
 |
| 出版日期 | 2005-04-15 |
| 卷号 | 104期号:3页码:339-350 |
| 关键词 | high temperature and irradiation photosynthesis photochemical efficiency of PSII jujube oasis |
| ISSN号 | 0304-4238 |
| DOI | 10.1016/j.scienta.2004.08.012 |
| 通讯作者 | Su, PX(supx@ns.lzb.ac.cn) |
| 英文摘要 | Linze jujube (Zizyphus jujuba Mill. var. inermis (Bunge) Rehd.) is a unique native selection with high-quality fruits. Photosynthetic capacity was evaluated under high temperature and irradiation using CO, exchange and chlorophyll fluorescence parameters. The diurnal course of net photosynthetic rate (P-n) was bimodal. The first peak occurred around 10:00 from late June to August. The second peak occurred around 17:00 during late June to late July with high temperature and intense sunlight, but around 16:00 in late August with lower temperature and irradiation. A clear midday depression of P. lasted from 12:00 to 16:00 from late June to late July, but it was less clear in late August. The light compensation point and light saturation point of P-n,P- were 28 and 1000 mu mol m(-2) s(-1), respectively, and the CO2 compensation point and CO2 saturation point of P-n were 64.3 and 677.5 mu mol mol(-1), respectively in late July. Under the conditions of high temperature (T-a > 40 degrees C) and irradiation (PFD > 2000 mu mol mol(-1)), photochemical efficiency of PS II (F-v/F-m) changed little between 0.78 and 0.84 all day, without photochemical damage. It was concluded that under the conditions of high temperature and irradiation, the midday reduction of P-n should be mainly attributed to stomatal conductance, which mainly resulted from the increase in vapor pressure deficit. (c) 2004 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | WATER-USE EFFICIENCY ; CHLOROPHYLL FLUORESCENCE ; PHOTOSYSTEM-II ; PLANTS |
| WOS研究方向 | Agriculture |
| WOS类目 | Horticulture |
| 语种 | 英语 |
| WOS记录号 | WOS:000228134700008 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555735 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Su, PX |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, PX,Liu, XM. Photosynthetic characteristics of linze jujube in conditions of high temperature and irradiation[J]. SCIENTIA HORTICULTURAE,2005,104(3):339-350. |
| APA | Su, PX,&Liu, XM.(2005).Photosynthetic characteristics of linze jujube in conditions of high temperature and irradiation.SCIENTIA HORTICULTURAE,104(3),339-350. |
| MLA | Su, PX,et al."Photosynthetic characteristics of linze jujube in conditions of high temperature and irradiation".SCIENTIA HORTICULTURAE 104.3(2005):339-350. |
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来源：寒区旱区环境与工程研究所
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