Author: Rahim Naghshiband Hassani and Hero Karimi
This study examined the effect of pulsing salicylic acid and calcium chloride and then sucrose holding of cut rose flower cv. Velvet, on its vase life and water balance. Flowers were placed in the pulsing solution containing salicylic acid (0, 1 and 2mM), calcium chloride (0, 2.5 and 5mM) and their combinations for 24 hours. All cut stems then transferred to the holding solution with sucrose (0 and 2%) and 8-HQS (250mg.L-1) for all treatment combinations. The most effective treatment in increasing vase life (22 days) observed in the combination treatment of salicylic acid at concentration of 2mM with calcium chloride treatment of 5mM. Water uptake increased significantly by salicylic acid 2mM and sucrose 2% holding as it reached to the highest level (4.5 g. stem. day) in comparison with control. The relative fresh weight of cut stems increased significantly by salicylic acid pulsing 2mM alone and calcium chloride pulsing 5mM alone with sucrose 2% holding. The highest value of petal
Cut rose flower, anti-senescence agents, water balance, carbohydrate supply.
Pulsing with salicylic acid and CaCl2 alone and their combinations extended the vase life of cut rose flower cv. Velvet. The most effective concentrations of salicylic acid and CaCl2 in improving vase life and water balance of cut stem as well as better flower opening during vase period obtained at 2mM and 5mM, respectively. While about their effect on improving the membrane stability index of petal cells of studied cultivar, the concentrations of 1 and 2.5 mM of salicylic acid and CaCl2 were more beneficial. Their improving effects on the qualitative and quantitative attributes of cut rose stem cv. Velvet increased by the existence of sucrose in the vase solution. According to the results of this experiment, it seems that the application of salicylic acid and CaCl2 as natural, cheap, safe, and biodegradable compounds can be suitable alternative chemical treatments in order to prolong vase life of cut rose flower.
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Rahim Naghshiband Hassani and Hero Karimi (2016). The Interrelationship between Calcium and Salicylic Acid Pulsing on Vase Life and Flower Opening of Cut Rose Flower , Biological Forum – An International Journal 8(2): 397-404.