DIURNAL AND SEASONAL VARIATIONS IN PHOTOSYNTHESIS, LEAF WATER POTENTIAL AND SOIL WATER CONTENT OF SIX ALFALFA CULTIVARS ON THE SEMIARID LOESS PLATEAU
文献类型：期刊论文
| 作者 | Chen, J.2; Wang, Z.2; Liu, J. B.2; Li, M.2; Su, G. X.2; XU, B. C.2; Huang, J.2; Huang, J (reprint author), Northwest A&F Univ, State key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Huang, J (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Huang, J (reprint author), Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China. |
| 刊名 | PAKISTAN JOURNAL OF BOTANY
 |
| 出版日期 | 2017 |
| 卷号 | 49期号:5页码:1717-1724 |
| 关键词 | Gas Exchange Leaf Water Potential Sol Water Content Water Use Efficiency |
| ISSN号 | 0556-3321 |
| 文献子类 | Article |
| 英文摘要 | Leaf photosynthesis, leaf water potential and soil water content were compared among six commonly used alfalfa cultivars (i.e. Polaris, Alfalfaqueen, Algonquin, Sanditi, Ningxia, and Xinjiang Daye) in a semiarid region on the Loess Plateau from May to September 2014. Daily leaf water potential (psi(L)) was monitored at four-hour intervals at 6:00, 10:00, 14:00 and 18:00. Leaf net photosynthetic rate (P-N) and transpiration rate (E) were measured at two-hour intervals on the same day from 6:00 to 18:00. The variation trend and difference of psi(L), P(N )and E were analyzed among the six alfalfa cultivars. Cv. Polaris had significantly lower instantaneous and daily mean value in May, and there were no significant differences in other five cultivars and in other three months. Cvs. Ningxia and Xinjiang Daye had relatively lower daily mean P-N value among the six cultivars in each month. Cv. Algonquin showed lower water potential gradient between psi(ML), and psi(SL) in each month among the six cultivars. Our results suggest that introduced cultivars of alfalfa have similar fluctuations in photosynthesis and leaf water status as domestic cultivars, while they have relatively higher P-N and water use efficiency (WUE), which is favorable for them to quickly adapt to the environment. |
| 学科主题 | Plant Sciences |
| 出版地 | KARACHI |
| 语种 | 英语 |
| WOS记录号 | WOS:000419148600011 |
| 出版者 | PAKISTAN BOTANICAL SOC |
| 资助机构 | Key cultivation project of Chinese Academy of Sciences "The promotion and management of ecosystem functions of restored vegetation on the Loess Plateau"; Doctoral Scientific Research Foundation of Northwest AF University [2452015341]; National Science Foundation of China [41371509] ; Key cultivation project of Chinese Academy of Sciences "The promotion and management of ecosystem functions of restored vegetation on the Loess Plateau"; Doctoral Scientific Research Foundation of Northwest AF University [2452015341]; National Science Foundation of China [41371509] ; Key cultivation project of Chinese Academy of Sciences "The promotion and management of ecosystem functions of restored vegetation on the Loess Plateau"; Doctoral Scientific Research Foundation of Northwest AF University [2452015341]; National Science Foundation of China [41371509] ; Key cultivation project of Chinese Academy of Sciences "The promotion and management of ecosystem functions of restored vegetation on the Loess Plateau"; Doctoral Scientific Research Foundation of Northwest AF University [2452015341]; National Science Foundation of China [41371509] |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/7902]  |
| 专题 | 水保所科研产出--SCI_2017--SCI |
| 通讯作者 | Huang, J (reprint author), Northwest A&F Univ, State key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Huang, J (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Huang, J (reprint author), Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, State key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, J.,Wang, Z.,Liu, J. B.,et al. DIURNAL AND SEASONAL VARIATIONS IN PHOTOSYNTHESIS, LEAF WATER POTENTIAL AND SOIL WATER CONTENT OF SIX ALFALFA CULTIVARS ON THE SEMIARID LOESS PLATEAU[J]. PAKISTAN JOURNAL OF BOTANY,2017,49(5):1717-1724. |
| APA | Chen, J..,Wang, Z..,Liu, J. B..,Li, M..,Su, G. X..,...&Huang, J .(2017).DIURNAL AND SEASONAL VARIATIONS IN PHOTOSYNTHESIS, LEAF WATER POTENTIAL AND SOIL WATER CONTENT OF SIX ALFALFA CULTIVARS ON THE SEMIARID LOESS PLATEAU.PAKISTAN JOURNAL OF BOTANY,49(5),1717-1724. |
| MLA | Chen, J.,et al."DIURNAL AND SEASONAL VARIATIONS IN PHOTOSYNTHESIS, LEAF WATER POTENTIAL AND SOIL WATER CONTENT OF SIX ALFALFA CULTIVARS ON THE SEMIARID LOESS PLATEAU".PAKISTAN JOURNAL OF BOTANY 49.5(2017):1717-1724. |
入库方式： OAI收割
来源：水土保持研究所
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