Effect of irrigation level on yield and bioactive amine content of American lettuce

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCoelho, AFS
dc.creatorGomes, E. P.
dc.creatorSousa, A. D.
dc.creatorGloria, M. B.
dc.date2014-05-20T15:26:22Z
dc.date2016-10-25T18:00:59Z
dc.date2014-05-20T15:26:22Z
dc.date2016-10-25T18:00:59Z
dc.date2005-04-30
dc.date.accessioned2017-04-05T23:56:43Z
dc.date.available2017-04-05T23:56:43Z
dc.identifierJournal of the Science of Food and Agriculture. Chichester: John Wiley & Sons Ltd, v. 85, n. 6, p. 1026-1032, 2005.
dc.identifier0022-5142
dc.identifierhttp://hdl.handle.net/11449/36552
dc.identifierhttp://acervodigital.unesp.br/handle/11449/36552
dc.identifier10.1002/jsfa.2064
dc.identifierWOS:000228405900021
dc.identifierhttp://dx.doi.org/10.1002/jsfa.2064
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/880051
dc.descriptionThe influence of four levels (25, 50, 75 and 100%) of Class A pan evaporation replenishment (PER) on the marketable yield and bioactive amine content of American lettuce (Lactuca sativa cv Lucy Brown) grown under greenhouse conditions and drip irrigation was investigated. Lettuce was planted in 1.20 m x 2.10 m plots in a completely randomised block design with three replications. Lowest fresh head weights and diameters were obtained at 25% PER. Highest marketable yields and fresh head weights were obtained at 100% PER; however, no significant difference was observed when using 75% PER. The fresh head diameter was smaller only when using 25% PER. Four amines were detected in lettuce grown under 100% PER, with a total content of 7.60 mg kg(-1). Spermidine was the prevalent amine, followed by putrescine, cadaverine and agmatine. Higher spermidine and cadaverine levels were observed in the outer layers of leaves than in the intermediate and inner leaves. The contents of every amine except agmatine increased with water stress; however, a significant difference was observed only between 100 and 25% PER. The concentrations of accumulated putrescine were not capable of negatively affecting the sensory quality of the lettuce. (c) 2005 Society of Chemical Industry.
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationJournal of the Science of Food and Agriculture
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectbioactive amines
dc.subjectLactuca sativa L
dc.subjectirrigation
dc.subjectwater stress
dc.titleEffect of irrigation level on yield and bioactive amine content of American lettuce
dc.typeOtro


Este ítem pertenece a la siguiente institución