干旱区生态环境知识资源中心(Arid): Comparsion of Ecophysiological Responses of Acacia raddiana and Acacia nilotica During Seedling Establishment in Extreme Arid Conditions

Arid

DOI	10.21608/ejbo.2020.19626.1389
	Comparsion of Ecophysiological Responses of Acacia raddiana and Acacia nilotica During Seedling Establishment in Extreme Arid Conditions
	Radwan, Usama A. A.; Radwan, Tarek A. A.; Abouelkasim, Esraa K.
通讯作者	Radwan, UAA
来源期刊	EGYPTIAN JOURNAL OF BOTANY
ISSN	0375-9237
EISSN	2357-0350
出版年	2020
卷号	60 期号:2 页码:593-603
英文摘要	THE PRESENT investigation involves the studies of physiological responses of A. T raddiana (savi) Brenan and A. nilotica (L.) seedlings under extreme arid conditions. Experiments were performed in a hyper arid environment to study the effects of drought stress using different water regimes at 12%, 9%, 6%, 4% and 2%. Photosynthesis and transpiration rate were measured under full Photosynthetic Active Radiationrange (0-2500 mu mols(-1)m(-2)) and instantaneous water use efficiency was calculated. A. raddiana and A. nilotica showed maximum photosynthesis rate under 4% and 12% soil moisture content, respectively at high Photosynthetic Active Radiation levels, maximum transpiration rate of A. raddiana recorded at 4% soil moisture content and at 9% soil moisture content in A. nilotica at highest Photosynthetic Active Radiation. The maximum instantaneous water use efficiency was noticed in A. raddiana at 12% soil moisture content, while A. nilotica showed maximum instantaneous water use efficiency at 6% soil moisture content at high Photosynthetic Active Radiation level. A. raddiana acted as water spender ideal desert plant at high Photosynthetic Active Radiation. Other wise A. nilotica maximised photosynthesis rate and minimised transpiration rate giving maximum instantaneous water use efficiency at high Photosynthetic Active Radiation and low soil moisture content levels.
英文关键词	Desert plant Drought stress Instantaneous water use efficiency Photosynthetic active radiation Photosynthesis Transpiration rate
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000560558600020
WOS关键词	WATER-USE EFFICIENCY ; PHOTOSYNTHETIC CAPACITY ; DROUGHT STRESS ; ACCLIMATION ; TOLERANCE ; GENOTYPES ; GROWTH ; LEAVES ; PLANTS ; CO2
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334545
作者单位	[Radwan, Usama A. A.; Radwan, Tarek A. A.; Abouelkasim, Esraa K.] Aswan Univ, Fac Sci, Bot Dept, Aswan 81528, Egypt
推荐引用方式 GB/T 7714	Radwan, Usama A. A.,Radwan, Tarek A. A.,Abouelkasim, Esraa K.. Comparsion of Ecophysiological Responses of Acacia raddiana and Acacia nilotica During Seedling Establishment in Extreme Arid Conditions[J],2020,60(2):593-603.
APA	Radwan, Usama A. A.,Radwan, Tarek A. A.,&Abouelkasim, Esraa K..(2020).Comparsion of Ecophysiological Responses of Acacia raddiana and Acacia nilotica During Seedling Establishment in Extreme Arid Conditions.EGYPTIAN JOURNAL OF BOTANY,60(2),593-603.
MLA	Radwan, Usama A. A.,et al."Comparsion of Ecophysiological Responses of Acacia raddiana and Acacia nilotica During Seedling Establishment in Extreme Arid Conditions".EGYPTIAN JOURNAL OF BOTANY 60.2(2020):593-603.