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Publication Type J
Authors de Vos, A. C., R. Broekman, C. C. D. Guerra, M. van Rijsselberghe and J. Rozema
Title Developing and testing new halophyte crops: A case study of salt tolerance of two species of the Brassicaceae, Diplotaxis tenuifolia and Cochlearia officinalis
Source Environmental and Experimental Botany
Author Keywords Halophyte Salt tolerance Relative growth rate Developing saline agriculture Diplotaxis tenuifolia Cochlearia officinalis thellungiella-halophila nacl-salinity plant-growth arabidopsis-thaliana ion accumulation cakile-maritima leaf resistance transport ecology
Abstract Diplotaxis tenuifolia (L.) and Cochlearia officinalis (L.) were presumed to be salt tolerant with potential as vegetable halophyte crops. The response to increasing salinity was analysed by means of the relative growth rate (RGR) and its components and mineral composition. No growth reductions occurred up to 100 mM NaCl for D. tenuifolia, whereas C officinalis showed a 37% decrease in total dry weight at this concentration of NaCl, corresponding to a 9% decrease in RGR. The RGR at higher salinity levels (>= 200 mM NaCl) showed reductions around 20% for both species, largely due to changes of leaf morphology (decrease in specific leaf area, increase in leaf succulence) rather than toxic leaf Na+ concentrations. In comparison to seven other species of the Brassicaceae, including salt sensitive and highly salt tolerant species, both D. tenuifolia and C. officinalis showed an intermediate response to increasing salinity. Both species were able to survive the highest salinity treatment (300 mM NaCl for D. tenuifolia and 400 mM NaCl for C. officinalis) and can be classified as salt tolerant with potential as vegetable crops for saline agriculture. Since D. tenuifolia is already in use as an agricultural crop, little constraints are foreseen for its introduction as a saline crop. Before C. officinalis can be used as a saline crop, agricultural practices and marketing still have to be addressed. A hands-on tool is provided for this process, which combines science, agronomy, the social system, and the business sector. (C) 2012 Elsevier B.V. All rights reserved.
Author Address [de Vos, Arjen C.; Broekman, Rob; Rozema, Jelte] Vrije Univ Amsterdam, Dept Syst Ecol, Inst Ecol Sci, NL-1081 HV Amsterdam, Netherlands. [de Almeida Guerra, Catia C.] Univ Aveiro, Dept Biol, P-3810 Aveiro, Portugal. [van Rijsselberghe, Marc] Texelse Milieuvriendelijke Nat Prod BV, NL-1791 NT Den Burg, Netherlands. de Vos, AC (reprint author), Vrije Univ Amsterdam, Dept Syst Ecol, Inst Ecol Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands. a.c.de.vos@vu.nl
ISSN 0098-8472
ISBN 0098-8472
29-Character Source Abbreviation Environ. Exp. Bot.
Publication Date Aug
Year Published 2013
Volume 92
Special Issue SI
Beginning Page 154-164
Ending Page 164
Digital Object Identifier (DOI) 10.1016/j.envexpbot.2012.08.003
Page Count 11
Unique Article Identifier WOS:000320678600015
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