Effects of ethylene on carnation flowers dianthus caryophyllus cut at different stages of development

Camprubi, P.; Nichols, R.

Journal of Horticultural Science 53(1): 17-22

1978


DOI: 10.1080/00221589.1978.11514788
Accession: 005302897

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Abstract
Carnation flowers cut at various stages of development became increasingly sensitive to ethylene as they aged. Ethylene (e.g., 1 vpm for 24 h) caused irreversible wilting of open flowers, but had little or no effect on the youngest flowers (buds), provided they were opened in a sucrose-germicide solution. The tolerance of flowers to exogenous ethylene or propylene was inversely related to their capacity to produce endogenous ethylene. Ethylene at 10 vpm for 24 h induced elongation and often an increase in the fresh wt of the petals of the youngest flowers, and, after 8 days, there was enlargement of the gynoecium; older buds failed to open and mature flowers wilted.