Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2012.753.760M. CasteloA. V.Del MenezziC. H.S.ResckI. S.82012128This study analysed the influence of seasonality on the production and composition of essential oils from Blepharocalyx salicifolius (Kunth.) O. Berg and Psidium myrsinites DC, which are very common and useful species of the Brazilian Savannah (Cerrado). Steam distillation technique was used to obtain these oils and to investigate their chemical composition, 1H and 13C nuclear magnetic resonance, gas chromatography, mass spectrometry and infrared techniques were employed. The average yields of essential oil were 0.18 and 0.26% from B. salicifolius and P. myrsinites, respectively; both species tended towards higher production in the dry season. Both oil mixtures were composed primarily of monoterpene and sesquiterpene compounds. The monoterpene linalool was found on the essential oil from Psidium species.]]>Alsafar, M.S. and Y.M. Al-Hassan,2009Mentha longifolia L.).]]>8380384Appezzato-da-Gloria, B. and S.M. Carmello-Guerreiro,20031st Edn.,Ayanoglu, F., M. Arslan and A. Hatay,20051138142Azizi, K. and D. Kahrizi,2008Cuminum cyminum L.) under the conditions of Iran.]]>7710716Brant, R.S., J.E.B.P. Pinto, S.K.V. Bertolucci and C.J.B. Albuquerque,2008Aloysia triphylla (L'Her.) Britton in function of seasonal variation.]]>108388Castelo, A.V.M., C.H.S.D. Menezzi and I.S. Resck,201016573584Chaves, F.C.M., H.R. Bizzo, P.C.S. Angelo, J.J.B.N. Xavier and A.F.S. Sobrinho,2006Croton cajucara Benth).]]>8117119Eiten, G.,197238201341Evans, W.C.,199614th Edn.,pp: 248pp: 248Ferri, M.G.,19444159224Franco, A.C. and U. Luttge,20022 assimilation and water use efficiency.]]>131356365Freitas, M.O., S.M. de Morais and E.R. Silveira,2002Psidium myrsinoides O. Berg.]]>14364365Gobbo-Neto, L. and N.P. Lopes,200730374381Henriques, R.P.D.,20052005pp: 75-79pp: 75-79Joly, A.B.,200213th Edn.,Silva-Junior, M.C.,20051st Edn.,Kutchan, T.M.,20011255860Limberger, R.P., M.E.G. Sobral, J.A.S. Zuanazzi, P.R.H. Moreno, E.E.S. Schapoval and A.T. Henriques,2001Blepharocalyx salicifolius.]]>39308311MacArthur, R.H. and E.O. Wilson,2001Pages: 203Pages: 203Marques, T.P.,20072007Moreira, J.J.S., C.S. Pereira, E.M. Ethur, E.C.S. Machado, A.F. Morel and W.A. Konig,1999Blepharocalyx salicifolius.]]>114548Mosayebi, M., G. Amin, H. Arzani, H. Azarnivand, M. Maleki and A. Shafaghat,2008Achillea filipendulina L. in Iran.]]>7779781Okoh, O.O., A.A. Sadimenko and A.J. Afolayan,2007Calendula officinalis.]]>738063810Ozguven, M., F. Ayanoglu and A. Ozel,2006Origanum syriacum L. Var. bevanii.]]>5101105Pirzad, A., H. Alyari, M.R. Shakiba, S. Zehtab-Salmasi and A. Mohammadi,2006Matricaria chamomilla L.) at different irrigation regimes.]]>5451455Raven, P.H., R.F. Evert and S. Eichhon,19966th Edn.,Salisbury, F.B. and C.W. Ross,1991Pages: 682Pages: 682Scherer, L.M.,2007Cymbopogon winterianus Jowitt): Effect of season and vegetal hormones on the in vitro multiplication and yield of essential oil.]]>2007Silverstein, R.M., F.X. Webster and D.J. Kiemle,20057th Edn.,Pages: 502Pages: 502Souza, A.,20092009Stewart, D.,20062nd Edn.,Supanjani, A.R.M. Tawaha, M.S. Yang and K.D. Lee,2005Chrysanthemum coronarium L.]]>1196200Taiz, L. and E. Zeiger,20043rd Edn., Telci, I. and N. Sahbaz,2005Mentha piperita L.) in various ages of plantation.]]>4103108Tucker, A.O., M.J. Maciarello and L.R. Landrum,1993Blepharocalyx cruckshankii (Hook and Arn.) niedenzu of chile and B. salicifolius (Humb., Bonpl. and Kunth) berg of argentina.]]>5333335Verma, R.K., R.S. Verma, A. Chauhan, A. Singh, Laiq-ur Rahman L. Rahman and A. Kalra,2011Pelargonium graveolens L.), intercropped with vegetables.]]>6830839