干旱区生态环境知识资源中心(Arid): Trade-off between shoot and root dry weight along with a steady CO2 assimilation rate ensures the survival of Eucalyptus camaldulensis under salt stress

Arid

DOI	10.17221/44/2020-JFS
	Trade-off between shoot and root dry weight along with a steady CO2 assimilation rate ensures the survival of Eucalyptus camaldulensis under salt stress
	Rasheed, Fahad; Bakhsh, Rasool; Qadir, Ihsan
通讯作者	Rasheed, F
来源期刊	JOURNAL OF FOREST SCIENCE
ISSN	1212-4834
EISSN	1805-935X
出版年	2020
卷号	66 期号:11 页码:452-460
英文摘要	Salt stress is a major challenge for reforestation in arid to semi-arid regions. Therefore the effect of salt stress was tested in 4-months-old saplings of Eucalyptus camaldulensis under controlled conditions. Individuals were subjected to three levels of salt stress (2, 8, 16 d.Sm-1) and several traits describing growth and dry weight production/allocation, as well as physiological attributes were measured. The results showed that salt stress had no impact on plant height or stem diameter. Number of leaves, number of branches, and leaf chlorophyll content decreased significantly under high salt stress treatment. Leaf dry weight decreased significantly, but root dry weight increased significantly from 6.22 to 8.24 g under high salt stress treatment. Total plant dry weight remained similar while the root/shoot ratio increased significantly under high salt stress treatment. The net CO2 assimilation rate remained stable at similar to 10.1 mmol.m(-2) .s(-1) and stomata! conductance decreased significantly to 79 mmol.m(-2).s(-1) under high salt stress. Consequently, water use efficiency increased significantly to 3.25 mmol.mol(-1) under high salt stress. Therefore we may conclude that the young Eucalyptus camaldulensis saplings can tolerate moderate salt stress by increasing dry weight allocation towards the root system and sustaining the CO2 assimilation rate.
英文关键词	tolerance salinity dry weight production and allocation stomatal conductance water use efficiency
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000596945500002
WOS关键词	TRANSPIRATION EFFICIENCY ; STOMATAL CONDUCTANCE ; DROUGHT RESPONSES ; WATER RELATIONS ; SALINITY ; PLANT ; GROWTH ; LEAF ; PHOTOSYNTHESIS ; TOLERANCE
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334795
作者单位	[Rasheed, Fahad; Bakhsh, Rasool] Univ Agr Faisalabad, Dept Forestry & Range Management, Faisalabad, Pakistan; [Qadir, Ihsan] Bahaudin Zikaria Univ, Dept Forestry & Range Management, Multan, Pakistan
推荐引用方式 GB/T 7714	Rasheed, Fahad,Bakhsh, Rasool,Qadir, Ihsan. Trade-off between shoot and root dry weight along with a steady CO2 assimilation rate ensures the survival of Eucalyptus camaldulensis under salt stress[J],2020,66(11):452-460.
APA	Rasheed, Fahad,Bakhsh, Rasool,&Qadir, Ihsan.(2020).Trade-off between shoot and root dry weight along with a steady CO2 assimilation rate ensures the survival of Eucalyptus camaldulensis under salt stress.JOURNAL OF FOREST SCIENCE,66(11),452-460.
MLA	Rasheed, Fahad,et al."Trade-off between shoot and root dry weight along with a steady CO2 assimilation rate ensures the survival of Eucalyptus camaldulensis under salt stress".JOURNAL OF FOREST SCIENCE 66.11(2020):452-460.