Developing and testing new halophyte crops: A case study of salt tolerance of two species of the Brassicaceae, Diplotaxis tenuifolia and Cochlearia officinalis

A.C. de Vos, R.A. Broekman, C.C. de Almeida Guerra, M. van Rijsselberghe, J. Rozema

Research output: Contribution to JournalArticleAcademicpeer-review

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 100mM 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 (≥200mM 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
Original languageEnglish
Pages (from-to)194-164
JournalEnvironmental and Experimental Botany
Volume92
DOIs
Publication statusPublished - 2013

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