'Tommy Atkins' mangoes were harvested at stage 2 of maturity and treated with gaseous 1-Methylciclopropene (1-MCP) (100 or 500 nL.L-1) at room temperature in sealed chambers for 12 hours. Aiming to study the influence of 1- MCP and modified atmosphere, isolated or combined, on ripening, fruits were stored during 25 days at 11.5 ± 1.7 °C and 86.1 ± 8.4 % RH, followed by 7 days at 25.4 ± 0.2 °C and 97.6 ± 1.2 % RH. The lowest respiratory rates were observed in fruits treated with 100 nL.L -1 of 1-MCP without MA and in those with 500 nL.L-1 of 1-MCP and MA. 1-MCP kept fruits more acid and with higher vitamin C contents, especially the concentration of 100 nL.L-1 of 1-MCP which showed the greatest effect on 'Tommy Atkins' ripening. There is apparently no effect of 1-MCP on total soluble solids. The isolated use of modified atmosphere by film reduced soluble solids accumulation. The use of 1-MCP alone would represent lower postharvest costs, higher number of treated fruits and less postharvest management steps.645 645650Evangelista, R.M., (1999) Qualidade de Mangas 'Tommy Atkins' Armazenadas Sob Refrigeraç ão E Tratadas Com Cloreto de Cálcio Pré-colheita, p. 129. , UFLA:Lavras, (Diss. in Food Science)Ferreira, D.F., Análises estatísticas por meio do SISVAR para Windows versão 4.0 (2000) 45a Reunião Anual Brasileira da Sociedade Internacional de Biometria, pp. 255-258. , UFSCar, São Carlos, SPGarcia Estrada, R., Siller Cepeda, J., Carrilo Fasio, J., Muy Rangel, M., Báez Sañudo, R., Marquez Zequera, M.Y., Effecto de 1-metilciclopropeno en la presencia de Colletotrichum gloeosporoides PENZ durante el mercadeo de frutos de mango (2001) Congres. Brasileiro de Fitopatologia, 34, São Pedro, Brazil, 2001. Fitopatologia Brasileira, 26, p. 462. , SuplementoHofman, P.J., Jobin-Decor, M., Meilburg, G.F., Macnish, A.J., Joyce, D.C., Ripening and quality responses of avocado, custard apple, mango and papaya fruit to methylcyclopene (2001) Australian J. Exp. Agri., 41, pp. 567-572Jiang, Y., Joyce, D.C., Effects of 1-methylcyclopropene alone and in combination with polyethylene bags on the postharvest life of mango fruit (2000) Annu. Applied Biol., 137, pp. 321-327Jiang, Y., Joyce, D.C., Macnish, A.J., Extension of the shelf life of banana fruit by 1-methylcyclopropene in combination with polyethylene bags (1999) Postharvest Biol. Technol., 16, pp. 187-193Lana, M.M., Finger, F.L., (2000) Atmosfera Modificada E Controlada: Aplicação Na Conservação de Produtos Agrícolas, p. 34. , Brasília:EMBRAPALucaf́, B.H.S., Boteon, M., Potencial da manga brasileira no mercado internacional (2001) Congres. Intl. de Economia E Gestão de Negócios Agroalimentares, 3, Ribeirão Preto:PENSA/Faculdade de Economia E a Administração, Universidade de São Paulo, , CD-ROMMorais, P.L.D., (2001) Maturidade Para Colheita E Vida úTil da Manga 'Tommy Atkins' Para O Mercado Europeu, p. 83. , (Diss. in Fitotecnia). Universidade Federal de FortalezaNanda, S., Rao, D.V.S., Krisnamurthy, S., Effects of shrink film wrapping and storage temperature on the shelf life and quality of pomegranate fruits cv (2001) Ganesh. Postharvest Biol. Technol, 22, pp. 61-69Pesis, E., Aharoni, Z., Aharon, R., Bem-Arie, N., Aharoni, N., Fuchs, Y., Modified atmosphere and modified humidity packaging alleviates chilling injury symptons in mango fruit (2001) Postharvest Biol. Technol., 19, pp. 93-101Selvarajah, S., Bauchot, A.D., John, P., Internal browning in cold-storage pineapples is suppressed by a postharvest application of 1-methycyclopropene (2001) Postharvest Biol. Technol., 23, pp. 167-170Sisler, E.C., Serek, M., Inhibitors of ethylene responses in plants at the receptor level: Recent developments (1997) Physiol. Plant., 100, pp. 577-582Strohecker, R., Henning, H.M., (1967) Analisis de Vitaminas: Métodos Comprobados, p. 428. , Madrid: Paz MontalvoThomas, P., Oke, M.S., Technical note: Vitamina C content and distribuition in mangoes during ripening (1980) J. Food Sci. Technol, 15, pp. 669-672Thompson, A.K., Modified atmosphere packaging (1998) Controlled Atmosphere Storage of Fruits and Vegetables, pp. 95-116. , Thompson, A.K. CAB Internacional. New YorkWills, R.B.H., Ku, V.V.V., Use of 1-MCP to extend the time to ripen of green tomatoes and postharvest life of ripe tomatoes (2002) Postharvest Biol. and Technol., 26, pp. 85-90Yahia, E.M., Modified and Controlled atmospheres for tropical Fruits (1998) Hort. Rev., 22, pp. 123-183