Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham

The allelopathy is a process for which products of the secondary metabolism, as terpenes phenolic, of a certain vegetal intervene significantly, generally of antagonistic form, in the development of other species of plants. The objective of this work was to chemically characterize the essential oil...

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Autores principales:	Araújo Marco,Cláudia, Teixeira,Erlan, Simplício,Antonio, Oliveira,Carlos, Costa,José, Feitosa,José
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	Allelopathy plant oil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100025
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spelling	oai:scielo:S0718-583920120001000252018-10-01Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides ChamAraújo Marco,CláudiaTeixeira,ErlanSimplício,AntonioOliveira,CarlosCosta,JoséFeitosa,José Allelopathy plant oil The allelopathy is a process for which products of the secondary metabolism, as terpenes phenolic, of a certain vegetal intervene significantly, generally of antagonistic form, in the development of other species of plants. The objective of this work was to chemically characterize the essential oil of Lippia sidoides Cham. growing in the Cariri cearense region, Brazil, and evaluate the allelopathyc effect of this oil on the germination of lettuce (Lactuca sativa L.), arugula (Eruca sativa Mill.), and cauliflower (Brassica oleracea L.), in pre-plantation application. The monoterpene thymol (84.90%) has been identified as the principal constituent in the essential oil. The experiment was done in randomized complete block, in 4 x 3 factorial; being used four essential oil combinations applied in three different species in pre-plantation applications. Emergence velocity index (EVI), germination percentage and mean time to germination (MTG), had been analyzed through daily counting carried out until the 14th day after sowing. Through qualitative analysis performed by gas chromatography coupled with mass spectrometry (GC/MS) were identified seven chemical constituents representing 97.82% of essential oil of L. sidoides, being that the constituent present in greater concentration in oil was the thymol (84.90%). Could be verified the occurrence of the negative allelopathyc effect of lettuce crop, because its present low EVI and greater MTG, for the other vegetable species there were no allelopathic effect.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100025en10.4067/S0718-58392012000100025
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Allelopathy plant oil
spellingShingle	Allelopathy plant oil Araújo Marco,Cláudia Teixeira,Erlan Simplício,Antonio Oliveira,Carlos Costa,José Feitosa,José Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham
description	The allelopathy is a process for which products of the secondary metabolism, as terpenes phenolic, of a certain vegetal intervene significantly, generally of antagonistic form, in the development of other species of plants. The objective of this work was to chemically characterize the essential oil of Lippia sidoides Cham. growing in the Cariri cearense region, Brazil, and evaluate the allelopathyc effect of this oil on the germination of lettuce (Lactuca sativa L.), arugula (Eruca sativa Mill.), and cauliflower (Brassica oleracea L.), in pre-plantation application. The monoterpene thymol (84.90%) has been identified as the principal constituent in the essential oil. The experiment was done in randomized complete block, in 4 x 3 factorial; being used four essential oil combinations applied in three different species in pre-plantation applications. Emergence velocity index (EVI), germination percentage and mean time to germination (MTG), had been analyzed through daily counting carried out until the 14th day after sowing. Through qualitative analysis performed by gas chromatography coupled with mass spectrometry (GC/MS) were identified seven chemical constituents representing 97.82% of essential oil of L. sidoides, being that the constituent present in greater concentration in oil was the thymol (84.90%). Could be verified the occurrence of the negative allelopathyc effect of lettuce crop, because its present low EVI and greater MTG, for the other vegetable species there were no allelopathic effect.
author	Araújo Marco,Cláudia Teixeira,Erlan Simplício,Antonio Oliveira,Carlos Costa,José Feitosa,José
author_facet	Araújo Marco,Cláudia Teixeira,Erlan Simplício,Antonio Oliveira,Carlos Costa,José Feitosa,José
author_sort	Araújo Marco,Cláudia
title	Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham
title_short	Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham
title_full	Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham
title_fullStr	Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham
title_full_unstemmed	Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham
title_sort	chemical composition and allelopathyc activity of essential oil of lippia sidoides cham
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100025
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_version_	1714205308600975360

Chemical Composition and Allelopathyc Activity of Essential Oil of Lippia sidoides Cham

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