Vase life and quality of torch ginger (Etlingera elatior) inflorescences treated with 6-benzyladenine
The postharvest quality and vase life of torch ginger (Etlingera elatior) inflorescences treated with 6-benzyladenine (BA) under ambient conditions of 23-25°C and 89-91% RH were evaluated. In separate experiments, newly harvested inflorescences at 75% maturity were either mist-sprayed to dripping or dipped for 30 min in different BA concentrations (0, 50, 100, 150 and 200 mg L-1). Initial days to bract browning, glossiness, visual quality, water uptake, weight change and vase life of the inflorescences were evaluated regularly. Of the two methods of BA application, dipping yielded better results compared with spraying. BA as dip at 200 mg L-1 resulted in delayed bract browning, longer retention of inflorescence gloss, better visual quality and 1.6-fold-extended vase life. Water uptake and inflorescence weights generally declined during holding. In another set-up, 200 mg L-1 BA was compared with 200 mg L-1 8-hydroxyquinoline citrate (8-HQC), 150 mg L-1 citric acid (CA) and 5% sucrose. Electrolyte leakage increased with holding. On day 6, electrolyte leakage was lower in inflorescences dipped in the preservative mixture compared with those sprayed with or dipped in 200 mg L-1 BA. However, visual quality and vase life were similar in samples treated with BA alone or dipped in the preservative mixture.
Bayogan, E.V. and Bajade, V.K.H. (2017). Vase life and quality of torch ginger (Etlingera elatior) inflorescences treated with 6-benzyladenine. Acta Hortic. 1179, 165-172
Etlingera elatior, visual quality, bract browning, glossiness