Role of salicylic acid and sucrose in the elongation vase life of dianthus caryophyllus l.

Abstract EN

An experiment was carried out in Horticulture and landscape gardening department in Faculty of Agriculture in Kufa university at season 2014, The flowers were collected at 15th of April \2014 to test the addition of salicylic acid(SA) in different concentrations ( 25,50,100and150 mg.L-1) with sucrose at concentration7% or the using sucrose alone at a concentration of 7% compared with control treatment (distilled water).Results showed that the best treatment using 100mg.L-1of SA with 7% sucrose which gave the highest fresh weight(g) and the highest quantity of absorbed water 26.00 g and 11.79 cm3 respectively, compared with control treatment (distilled water) 22.75 g and 5.53 cm3 respectively ,while the treatment of 150 mg of SA with 7% sucrose gave the highest percent of sugars content 7.97 g in contrast with control treatment(4.72 g).The highest respiration rate 110.50 mg.Co2.kg-1.hr-1 when sucrose solution used alone in comparison with 50.10 mg.Co2.kg-1.hr-1 when 150g of SA and 7% sucrose was used.

This treatment increased the vase life of cut flowers to (8.95 days) compared with control (distilled water) (4.00 days).