Determination of optimum concentration and treatment time of 1-MCP (1-methylcyclopropene) on vase life of cut carnation 'Tempo'
D. Hashemabadi, Y. Mostofi
ISHS Acta Horticulturae 755:197-204. 2007.
2007
บทคัดย่อ
1-MCP, as an ethylene action inhibitor, significantly delayed the wilting of the cut carnation (Dianthus caryophyllus L.). This study was carried out to determine the optimum concentration and duration of 1-MCP application on vaselife of cut carnation ‘Tempo’. In this experiment 6 levels of 1-MCP concentrations (0, 20, 40, 60, 80 or 100 nl L-1) as well as three levels of time durations (3, 6 or 9 h) were applied in a factorial randomized complete block design with 3 replications on vaselife, ethylene production, dry matter and flower opening index. 324 cut carnations were kept in postharvest room where the temperature was 20±2°C, 60-70% relative humidity, 15-20 µmol s-1 m-2 light intensity and 12 hours photoperiod. The results showed that difference between treatments according to vaselife, ethylene production and flower opening index at P≥0.01 and in dry matter at P≥0.05 were significant. The treatment of 60 nl L-1 1-MCP with 15.49 days vaselife, 0.34 nl L-1 h-1 g-1 ethylene production and 19.75% dry matter, was better compared with control plants.