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Publication Type J
Authors Ventura, Y., W. A. Wuddineh, M. Myrzabayeva, Z. Alikulov, I. Khozin-Goldberg, M. Shpigel, T. M. Samocha and M. Sagi
Title Effect of seawater concentration on the productivity and nutritional value of annual Salicornia and perennial Sarcocomia halophytes as leafy vegetable crops
Source Scientia Horticulturae
Author Keywords Antioxidant compounds Cash crop Omega-3 polyunsaturated fatty acids Multiple harvest Salinity Ureides spinach tetragonia-tetragonioides salt tolerance salinity tolerance l. plants temperature growth yield
Abstract The halophyte Salicornia was recently introduced as a fresh vegetable crop that thrives in extreme salt conditions. Two annual Salicornia and two perennial Sarcocornia ecotypes were investigated for yield production and nutritional value in response to different seawater concentrations in the irrigation solution. A harvest schedule based on a three-week cycle gave better productivity than a two-week or a four-week cycle. Total yield declined with increasing percentage of seawater above 50% in the irrigation water, however annual plants had always ca 2-3-fold higher fresh biomass in comparison to their perennial counterparts. Increased percentages of seawater in the irrigation solution had the following effects on ion concentrations in the shoots: no change in Ca2+ and Mg2+, a slight increase in K+, and marked elevations in Na+ and Cl-. Importantly, total polyphenol, beta-carotene and ureides, all known for their antioxidant capacities, rose with increasing seawater percentage, findings that indicated improved nutritional values for Salicornia and Sarcocornia irrigated with high concentrations of seawater. Impressively, both the annual Salicornia and the perennial Sarcocornia ecotypes exhibited high total shoot lipid contents of up to 2.41 and 2.06 mgg(-1) fresh weight, respectively, which included an omega-3 fraction of 47.6 and 41.2% of the total fatty acid content. Moreover, the high fatty acid content of the annual Salicornia ecotype was not significantly affected by increasing seawater concentrations. In this study, we thus demonstrated the feasibility of cultivating Salicornia and Sarcocornia by applying a multiple harvest system and 100% percentages of seawater in the irrigation water generating economic yields with high nutritional value. The findings also showed that Salicomia and Sarcocornia leafy vegetables may attract additional interest as an alternative source of omega-3 polyunsaturated fatty acids for human consumption, even when the crop irrigated solely with seawater. (C) 2011 Elsevier B.V. All rights reserved.
Author Address [Ventura, Yvonne; Wuddineh, Wegi A.; Khozin-Goldberg, Inna; Sagi, Moshe] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Albert Katz Dept Dryland Biotechnol, IL-84105 Beer Sheva, Israel. [Myrzabayeva, Malika; Alikulov, Zerekbay] LN Gumilyov Eurasian Natl Univ, Dept Biol & Biotechnol, Astana 473021, Kazakhstan. [Shpigel, Muki] Natl Ctr Mariculture, IL-88112 Elat, Israel. [Samocha, Tzachi M.] Shrimp Mariculture Res Facil, Texas Agr Expt Stn, Corpus Christi, TX 78418 USA. Sagi, M, Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Albert Katz Dept Dryland Biotechnol, POB 653, IL-84105 Beer Sheva, Israel. gizi@bgu.ac.il
ISSN 0304-4238
ISBN 0304-4238
29-Character Source Abbreviation Sci. Hortic.
Publication Date Apr
Year Published 2011
Volume 128
Issue 3
Beginning Page 189-196
Digital Object Identifier (DOI) 10.1016/j.scienta.2011.02.001
Unique Article Identifier ISI:000289592400005
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