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Effect of chemicals agents on postharvest conservation of Alpinia purpurata (Vieill) K. Schum inflorescences.

Alpinia purpurata is a tropical flower largely used as cut flower due to the beauty and durability of the inflorescences. The experiment was conducted to verify the effects of inhibitors of ethylene and bactericides, on conservation of red ginger cut flowers. The following treatments were used: 1) distilled water, 2) 500 ppb 1-methylcyclopropene (1-MCP), 3) 1000 ppb 1-MCP, 4) 0,35 mL.L-1 quaternary ammonium, 5) 1 mM silver thiosulphate. The qualitative aspects: color, turgor, browning and inflorescences curvature were evaluated. The 1-MCP treatment was the most promising for preservation of red ginger cut inflorescences during 12 days of vase-life. Red gingers inflorescences were very sensitive to STS (1 mM) and lost quality after two days of vase-life.

ISSN: 2447-536X

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