Postharvest Ripening Of 'tommy Atkins' Mangoes On Two Maturation Stages Treated With 1-mcp

The effects of postharvest application of 1-MCP on fruit ripening were evaluated in 'Tommy Atkins' mangoes harvested at two stages of maturity as defined by growers' standards based on pulp color. Fruits were exposed to 1- MCP for 12 hours in sealed containers, and then stored for up to 14 days at room temperature. The experiment was carried out as a 2x4x6 factorial design, with two stages of maturity (S2 and S3), four concentrations of 1-MCP (0, 30, 120 and 240 nL.L-1) and six evaluation periods (0, 4, 7, 9, 12 and 14 days), with five replications. Respiration rate, weight loss, pulp firmness, pH, total titratable acidity (TTA), total soluble solids (TSS) and TSS/TTA ratio were evaluated. Effects of 1-MCP concentrations of 30 and 120 nL.L-1 were noticed on ripening of mangoes harvested at S2, as delayed climacteric peak, reduced respiration rate, reduced fresh weight loss, firmer pulpand higher total titratable acidity as compared to non-treated fruits. Generally, fruits harvested in more advanced maturity stages are less susceptible to 1-MCP application. 'Tommy Atkins mangoes harvested at S3 maturity stage are not significantly affected by 1-MCP applications. Nevertheless a trend to delay ripening could be noticed.645627632Abdi, N., McGlasson, W.B., Holford, P., Williams, M., Mizrahi, Y., Responses of climateric and supressed-climateric plums to treatment with propylene and 1-methylcyclopene (1998) Postharvest Biol. Technol., 14, pp. 29-39Brackmann, A., Waclaworsky, A., Donazzolo, J., Ação do 1-MCP sobre o amadurecimento de maçãs (2000) Congresso Brasileiro de Fruticultura, 16, p. 354. , Malus doméstica Borkh) cv. Gala na temperatura de 20°C. 2000, Fortaleza. Resumos. Fortaleza: Embrapa Agroindústria Tropical/SBF, CD-ROMChitarra, A.B., Chitarra, M.I.F., (1990) Fisiologia Pós-colheita de Frutos E Hortaliças, p. 320. , Lavras: FAEPEDonadio, L.C., (1996) Variedades Brasileiras de Manga, p. 74. , São Paulo: Fundação Editora da UNESPFan, X., Argenta, L., Mattheis, J.P., Inhibition of ethylene action by 1- methylcycloprene prolongs storage of apricots (2000) Postharvest Biol. Technol, 20, pp. 135-142Faubion, D., Could new ethylene inhibitor work on fruit? (2000) Good Fruit Grower, 50, p. 18Ferreira, D.F., Análises estatísticas por meio do SISVAR para Windows versão 4.0 45a Reunião Anual Brasileira da Sociedade Internacional de Biometria, pp. 255-258. , UFSCar, São Carlos, SP, Julho de 2000Garcia-Estrada, R., Siller-Cepeda, J., Carrilo-Fasio, J., Muy-Rangel, M., Baez-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) Fitopatologia Brasileira, 26, p. 462Golding, J.B., Shearer, D., Wyllie, S.G., Mcglasson, W.B., Application of 1- MCP and propylene to identify ethylene-dependent ripening processes in mature banana fruit (1998) Postharvest Biol. Technol, 14, pp. 87-98Harris, D.R., Seberry, J.A., Wills, R.B.H., Spohr, L.J., Effect of fruit maturity on efficiency of 1-Methylcyclopene to delay the ripening of bananas (2000) Postharvest Biol. Technol., 20, pp. 303-308Jacomino, A.P., Kluge, R.A., Brackmann, A., Castro, P.R.C., Controle do amadurecimento e senescência de mamão com 1-metilciclopropeno (2002) Sci. Agric., 59, pp. 303-308Jeong, J., Donald, J., Steven, A., 1- Methycycloprene and waxing regulate the ripening storage life of avocado fruit (2000) HortScience, 35, p. 468Jeong, J., Huber, D.J., Sargent, S., Influence of 1-methycycloprene (1-MCP) on ripening and cell wall matrix polysaccharides of avocado (Persea americana) fruit (2002) Postharvest Biol. Technol, 25, pp. 241-256Jiang, Y., Joyce, D.C., Macnish, A.J., Responses of banana fruit to treatment with 1-Methylcyclopropene (1999) Plant Growth Regulation, 28, pp. 77-82Kays, J.S., Secondary metabolic processes and products (1991) Postharvest Physiology of Perishables Plant Products, pp. 143-255. , Kays, J.S. New York: AVI BookKluge, R.A., Jacomino, A.P., Shelf life of peaches treated with 1- methylcyclopropene (2002) Sci. Agric., 59, pp. 69-72De Lima, M.A.C., Alves, R.E., Filgueiras, H.A.C., Pereira, M.E.C., DaAlmeida, A.S., Enéas Filho, J., Postharvest maturation changes in soursop (Annona muricata L.) at room temperature as influenced by 1-MCP (2001) Memórias del IX Congresso de la Sociedad Mexicana de Ciências Hortícolas. Hort. Mexicana, 8, p. 204Lucafó, B.H.S., Boteon, M., Potencial da manga brasileira no mercado internacional (2001) Congresso Internacional de Economia E Gestão de NegóciosAgroalimentares, 3. , Ribeirão Preto:PENSA/Faculdade de Economia e Administraç ão/Universidade de São Paulo. CD-ROMMir, N.A., Curell, E., Khan, N., Whitaker, M., Beaudry, R.M., Harvest maturity, storage temperature and 1-MCP application frequency alter firmness retention and chlorophyll fluorescence of 'Redchief Delicious' apples (2001) J. Amer. Soc. Hort. Sci., 126, pp. 618-624Morais, 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 FortalezaSelvarajah, S., Bauchot, A.D., John, P., Internal browning in cold-storage pineapples is suppressed by a postharvest application of 1-methylcyclopropene (2001) Postharvest Biol. Technol., 23, pp. 167-170Sisler, E.C., Serek, M., Dupille, E., Comparison of cyclopropene, 1- methylcyclopropene and 3, 3-dimethylcyclopropene as ethylene antagonists in plants (1996) Plant Growth Regulation, 10, pp. 169-174Wills, 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. Technol., 26, pp. 85-9