TY - GEN
T1 - Responses to treatments with ethylene and 1-methyl cyclopropene in apricot var. 'Mauricio'
AU - Valdenegro, M.
AU - Sánchez-Bel, P.
AU - Romojaro, F.
AU - Martínez-Madrid, M. C.
AU - Egea, M. I.
PY - 2006/9
Y1 - 2006/9
N2 - The aim of this work was to evaluate the effect of 1-methylcyclopropene (1-MCP), following application of ethylene at different doses, on the post-harvest conduct of apricot van 'Mauricio'. The 1-MCP caused a delay in ripening when compared to the control fruits. Accumulation of the ethylene biosynthetic enzymes ACC oxidase and ACC synthase was delayed and inhibited by 1-MCP. This fact may indicate a lower production of ACC together with a decrease in ethylene transformation. All the treatments with 1-MCP reduced the ethylene production and the respiratory rate. Regarding the reversibility of the action of 1-MCP, the effect of the ethylene application after applying 1-MCP was dose-dependent only up to 5 ppm; for higher concentrations, no differences were found. On the basis of these results, we can conclude that the slowdown effect on the ethylene emission in all treatments with 1-MCP depended on the storage period. 1-MCP will protect apricot fruits of var. 'Mauricio' from exogenous sources of ethylene up to doses of 5 ppm.
AB - The aim of this work was to evaluate the effect of 1-methylcyclopropene (1-MCP), following application of ethylene at different doses, on the post-harvest conduct of apricot van 'Mauricio'. The 1-MCP caused a delay in ripening when compared to the control fruits. Accumulation of the ethylene biosynthetic enzymes ACC oxidase and ACC synthase was delayed and inhibited by 1-MCP. This fact may indicate a lower production of ACC together with a decrease in ethylene transformation. All the treatments with 1-MCP reduced the ethylene production and the respiratory rate. Regarding the reversibility of the action of 1-MCP, the effect of the ethylene application after applying 1-MCP was dose-dependent only up to 5 ppm; for higher concentrations, no differences were found. On the basis of these results, we can conclude that the slowdown effect on the ethylene emission in all treatments with 1-MCP depended on the storage period. 1-MCP will protect apricot fruits of var. 'Mauricio' from exogenous sources of ethylene up to doses of 5 ppm.
UR - http://www.scopus.com/inward/record.url?scp=37849186810&partnerID=8YFLogxK
U2 - 10.17660/ActaHortic.2006.717.71
DO - 10.17660/ActaHortic.2006.717.71
M3 - Conference contribution
AN - SCOPUS:37849186810
SN - 9066055995
SN - 9789066055995
T3 - Acta Horticulturae
SP - 355
EP - 358
BT - Proceedings of the XIIIth International Symposium on Apricot Breedin and Culture
PB - International Society for Horticultural Science
ER -