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Brassica oleracea var. costata: comparative study on organic acids and biomass production with other cabbage varieties

2009Journal article Restricted access
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dc.contributor.authorSousa, Carla
dc.contributor.authorPereira, David M.
dc.contributor.authorTaveira, Marcos
dc.contributor.authorDopico-García, Sonia
dc.contributor.authorValentão, Patrícia
dc.contributor.authorPereira, J.A.
dc.contributor.authorBento, Albino
dc.contributor.authorAndrade, Paula B.
dc.date.accessioned2011-01-10T16:53:41Z
dc.date.available2011-01-10T16:53:41Z
dc.date.issued2009
dc.description.abstractBACKGROUND: A study was undertaken to evaluate the effect of agronomic practices, harvesting time and leaf age on the organic acid composition and biomass production of Brassica oleracea L. var. costata DC (tronchuda cabbage). Samples were cultivated under eight different fertilisation regimes (two levels each of nitrogen, boron and sulfur, an organic fertiliser and no fertiliser) and collected at three different times. RESULTS: Principal component analysis of the data indicated significant differences. Three principal components with an eigenvalue higher than one accounted for 79.0% of the total variance of the data set. Samples obtained with conventional fertilisation were characterised by the highest values of fresh weight. External leaves showed higher total organic acid and malic acid contents than internal leaves,while the latterwere characterised by higher proportions of citric acid. For consecutive harvests, total organic acid concentration decreased in both external and internal leaves. CONCLUSION: The use of a conventional fertilisation regime (nitrogen, boron or sulfur) improved the growth of B. oleracea var. costata without affecting its organic acid profile. However, for consecutive harvests, total organic acid concentration was observed to decrease independently of the agronomic practices tested. Leaf age influenced the quantitative composition of organic acids.por
dc.description.sponsorshipFCTpor
dc.identifier.citationSousa, C.; Pereira, D.M.; Taveira, M.; Dopico-García, S.; Valentão, P.; Pereira, J.A.; Bento, A.; Andrade, P.B. (2009). Brassica oleracea var. costata: comparative study on organic acids and biomass production with other cabbage varieties. Journal of Science Food and Agriculture. ISSN 1097-0010. 89:6, p. 1083-1089por
dc.identifier.issn1097-0010
dc.identifier.urihttp://hdl.handle.net/10198/3046
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherWileypor
dc.relationPOCTI/AGR/57399/2004por
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291097-0010por
dc.subjectBrassica oleracea L. var. costata DCpor
dc.subjectOrganic acidspor
dc.subjectFertilisationpor
dc.subjectPrincipal component analysispor
dc.titleBrassica oleracea var. costata: comparative study on organic acids and biomass production with other cabbage varietiespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1089por
oaire.citation.issue89por
oaire.citation.startPage1083por
oaire.citation.titleJournal of Science Food and Agriculturepor
person.familyNamePereira
person.familyNameBento
person.givenNameJosé Alberto
person.givenNameAlbino
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.ciencia-idD516-325A-9AD7
person.identifier.orcid0000-0002-2260-0600
person.identifier.orcid0000-0001-5215-785X
person.identifier.ridL-6798-2014
person.identifier.ridN-9706-2016
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id35247694000
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication233115be-9d46-49d0-8b7d-2d64406d64a0
relation.isAuthorOfPublication.latestForDiscovery7932162e-a2da-4913-b00d-17babbe51857

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