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Stress induced ethylene production, ethylene binding, and the response to the ethylene action inhibitor 1-MCP in miniature roses.

Muller, R.; Sisler, E. C.; Serek, M.;

Scientia Horticulturae Year: 2000 Vol: 83 Issue: 1 Pages: 51-59 Ref: 13 ref.

2000

บทคัดย่อ

Stress induced ethylene production, ethylene binding, and the response to the ethylene action inhibitor 1-MCP in miniature roses.

In an interior environment, the display life of miniature potted roses (Rosa hybrida cv. Bronze) was 7 days, while that of cv. Vanilla was 23 days. Although there was a substantial difference in ethylene production between flowers from the cultivars, there was no difference in binding site activity (kd=0.14 nl litre-1). Pre-treatment with the ethylene action inhibitor 1-methylcyclopropene (1-MCP) did not have a clear effect on display life without preceding transport stress. When the plants were subjected to simulated transportation stress, postharvest life of both cultivars was reduced (to 6 days for Bronze, and to 17 days for Vanilla). In Bronze, the stress resulted in a modest increase in ethylene production, but in Vanilla, it had no effect on the low ethylene production by flowers. Nevertheless, pretreatment with 1-MCP before transport simulation improved display life of both cultivars.