The Effects of Different Floral Preservative Solutions on Peduncle Bending and Quality Attributes of Lisianthus Cut Flowers

摘要

A study was conducted to determine the effects of sucrose (at 0, 20, 40 and 60 g L~(-1)), citric acid (at 0 and 160 mg L~(-1)), aluminum sulphate, (at 0 and 160 mg L~(-1)) and silver nitrate (at 0 and 120 mg L~(-1)) on vase life and quality attributes of lisianthus cut flowers (cultivar 'Mariachi Blue Fonce'). Cut flowers were treated with the above mentioned compounds during 34 days storage at 20 ± 2°C and at the end of shelf life the amount of electrolyte leakage, relative water content and days to peduncle bending were determined. 60 g L~(-1) sucrose in combination with citric acid was the most effective treatment in increasing the vase life. Flowers treated with 60 g L~(-1) sucrose and aluminum sulphate had the highest relative water content. The lowest electrolyte leakage (29.84%) was recorded in flowers treated with 60 g L~(-1) sucrose and 120 mg L~(-1) silver nitrate. Treatment with the combination of 60 g L~(-1) sucrose, citric acid and silver nitrate was the most effective treatment in delaying the peduncle bending.