Cordeiro, Delaine Cristina creator Pereira, Ariana Mota creator Petrucci, Kharen Priscilla de Oliveira Salomão creator Finger, Fernando Luiz creator text periodical abstract or summary bl. continuing eng ABSTRACT: The objective of this study was to determine the effect of 1-methylcyclopropene (1-MCP) on vase life of rose cv. Osiana in different storage conditions and in the presence of exogenous ethylene. The roses were treated with 0.5; 1.0; 1.5 and 2.0 g m-3 of Ethylbloc, and submitted to the following conditions: Storage at 5 °C with stems in water; Storage at 22 °C with stems in water; Storage at 5 °C in ‘Strong’ type paper for 3 days and subsequent storage at 22 °C. The best storage condition was at 22 °C with the stems in the water. Doses greater than 1.0 g m-3 of Ethylbloc prolonged vase life. In this condition, the stems were treated with 1.0 g m-³ Ethylbloc; 1.0 g m-3 Ethylbloc + 10 μL L-1 ethylene and 10 μL L-1 ethylene for 24 h. The Ethylblocincreased vase life even in the presence of ethylene and fresh mass on the first two days. It reduced ethylene production by flowers in the first 24 h, and respiratory activity after 36 h. It can be concluded that the concentration of 1.0 g m-3 of Ethylblocprolongs the vase life of cv. Osiana stored at room temperature with the stems in water even in the presence of exogenous ethylene. Key words: ethylene; inhibitors; post-harvest; respiration; rose × hybrida RESUMO: Objetivou-se com este estudo determinar o efeito do 1-metilciclopropeno (1-MCP) na vida de vaso da rosa cv. Osiana em diferentes condições de armazenamento e na presença de etileno exógeno. As rosas foram tratadas com 0,5; 1,0; 1,5 e 2,0 g m-3 de Ethylbloc e submetidas às condições: Armazenamento a 5 °C com as hastes na água; Armazenamento a 22 °C com as hastes na água; Armazenamento a 5 °C em papel tipo ‘Strong’ por 3 dias e posterior armazenamento a 22 °C. A melhor condição de armazenamento foi a 22 °C com as hastes na água. As dosagens acima de 1,0 g m-3 de Ethylblocprolongou a vida de vaso. Nesta condição, as hastes foram tratadas com 1.0 g m-1 Ethylbloc; 1.0 g m-3 Ethylbloc + 10 μL L-1etileno e 10 μL L-1 etileno por 24 h. O Ethylbloc aumentou a vida de vaso mesmo na presença de etileno, aumentando a massa fresca nos primeiros dois dias, reduzindo a produção de etileno pelas flores nas primeiras 24 h e a atividade respiratória a partir das 36 h. Conclui-se que a concentração de 1,0 g m-3 de Ethylbloc prolonga a vida de vaso das rosas cv. Osiana armazenadas a temperatura ambiente com as hastes em água mesmo na presença de etileno exógeno. Palavras-chave: etileno; inibidores; pós-colheita; respiração; rosa x hibrida Publicação online; 12 ref.; 4 illus; Summaries (En, Pt) ROSA PÓS-COLHEITA ARMAZENAMENTO ETILENO TEMPERATURA CONSERVAÇÃO Recife-PE Universidade Federal Rural de Pernambuco 2006 2026-1686 1981-1160 BR2026000152 v. 15(1) p. 1-4; (2020) http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i1a6546/v15i1a6546 http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v15i1a6546/v15i1a6546 BR-BrBNA 260422 20260422112355.0 eng