Ciência Rural | |
Longevity of Oncidium varicosum (Orchidaceae) inflorescences treated with 1-methylciclopropene | |
Claudia Fabrino Machado Mattiuz2  Ben-hur Mattiuz2  Teresinha De Jesus Deléo Rodrigues1  Júlia De Pietro2  Ramilo Nogueira Martins2  Selma De Fátima Grossi2  | |
[1] ,Universidade Estadual de São Paulo (UNESP)Jaboticabal SP ,Brasil | |
关键词: postharvest; orchids; cut flowers; 1-MCP; ethylene; fisiologia; pós-colheita; orquídeas; flores de corte; etileno; | |
DOI : 10.1590/S0103-84782012005000028 | |
来源: SciELO | |
【 摘 要 】
Oncidium varicosum belongs to Orchidaceae family and nowadays it is commercialized on large scale due to its potential as cut flower. The species distinguishes decoratively in function of the high number of flowers golden yellow that compose its great and delicate inflorescence. The hormone ethylene performs an important function in the processes related with the senescence of cut flowers, and especially in relation to orchids anti-ethylene treatments are recommended to extend the vase life. Among chemicals used today for the postharvest treatment of flowers the 1-methylciclopropene (1-MCP) is an efficient inhibitor of autocatalytic production of ethylene. This research aimed to evaluate the effect of different concentrations of 1-methylciclopropene (Control and 1-MCP: 250ppb, 500ppb, 1000ppb) upon physiological aspects of cut inflorescences of Oncidium varicosum. The best treatment was 1-MCP 1000ppb and the flowers presented larger values of water content, soluble carbohydrates, reducing sugars, carotenoids and the respiration rates were lower. These results contributed to higher quality and longer life of inflorescences.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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