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Postharvest life of Rosa hybrids L. ‘Elegance Parade’ was increased by 0.2 mM silver thiosulfate and decreased by ethephon at 500 µl·liter-1. In contrast, spraying the plants with various polyamine (PA) concentrations (spermine, spermidine, or putrescine) or the PA-synthesis inhibitor methylglyoxal-guanylhydrazone did not affect postharvest life. Investigation of PA-uptake patterns showed that the compounds were entering the petal tissue.
Published in HortScience 29(3), 1994, pp. 196-198
