Trace element composition of two wild vegetables in response to soil-applied micronutrients

Simple item page
dc.contributor.authorMavengahama, Sydneyen_ZA
dc.contributor.authorDe Clercq, Willem P.en_ZA
dc.contributor.authorMcLachlan, Millaen_ZA
dc.date.accessioned2016-04-28T09:51:45Z
dc.date.available2016-04-28T09:51:45Z
dc.date.issued2014
dc.descriptionCITATION: Mavengahama, S., de Clercq, W. P. & McLachlan, M. 2014. Trace element composition of two wild vegetables in response to soil-applied micronutrients. South African Journal of Science, 110(9-10): 1-5, doi: 10.1590/ sajs.2014/20130339.en_ZA
dc.descriptionThe original publication is available at http://www.sajs.co.zaen_ZA
dc.description.abstractWild vegetables are an important commodity in the subsistence farming sector. They are considered to be rich in micronutrients and can therefore be used to overcome inadequate nutrition. However, research on micronutrients in wild vegetables remains limited and sporadic. In this study, we evaluated the responses of two wild vegetables – Corchorus olitorius and Amaranthus cruentus var. Arusha – to micronutrients added to the soil in comparison with a reference crop, Swiss chard (Beta vulgaris var. cicla). Swiss chard concentrated significantly (p<0.01) higher amounts of Cu, Zn and Mn in the leaves than did the wild vegetables. Variations in micronutrients among the vegetables were greater for Zn (72–363 mg/kg) and Mn (97.9–285.9 mg/kg) than for Cu (8.8–14 mg/kg). C. olitorius had the least capacity to concentrate Mn and Zn in the leaves. However, C. olitorius concentrated significantly more Fe (327 mg/kg) in the leaves than did A. cruentus (223 mg/kg) or B. vulgaris (295 mg/kg). The mean per cent S concentration in the leaves ranged from 0.26% in C. olitorius to 0.34% in A. cruentus and B. vulgaris. We conclude that the different vegetables had different abilities to concentrate Cu and Zn in the order B. vulgaris > A. cruentus > C. olitorius. These results seem to contradict the belief that wild vegetables have an inherent ability to concentrate mineral micronutrients in their tissues.en_ZA
dc.description.urihttp://www.sajs.co.za/trace-element-composition-two-wild-vegetables-response-soil-applied-micronutrients/sydney-mavengahama-willem-p-de-clercq-milla-mclachlanen_ZA
dc.description.versionPublisher's versionen_ZA
dc.format.extent5 pages : illustrationsen_ZA
dc.identifier.citationMavengahama, S., de Clercq, W. P. & McLachlan, M. 2014. Trace element composition of two wild vegetables in response to soil-applied micronutrients. South African Journal of Science, 110(9-10): 1-5, doi: 10.1590/ sajs.2014/20130339en_ZA
dc.identifier.issn1996-7489 (online)
dc.identifier.issn0038-2353 (print)
dc.identifier.otherdoi: 10.1590/ sajs.2014/20130339
dc.identifier.urihttp://hdl.handle.net/10019.1/98951
dc.language.isoen_ZAen_ZA
dc.publisherAcademy of Science of South Africaen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectWild vegetablesen_ZA
dc.subjectWild vegetables -- Nutritional analysisen_ZA
dc.subjectFertiliseren_ZA
dc.subjectMicronutrientsen_ZA
dc.subjectStaple food cropsen_ZA
dc.subjectFortificationen_ZA
dc.titleTrace element composition of two wild vegetables in response to soil-applied micronutrientsen_ZA
dc.typeArticleen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
mavengahama_trace_2014.pdf
Size:
117.21 KB
Format:
Adobe Portable Document Format
Description:
Download article
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.95 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Research Articles (Soil Science)