Document Type : Full Paper
Authors
1
Department of Genetics and Plant Breeding, Faculty of Agriculture and Natural Resources, Imam Khomeini International University, Qazvin, Iran
2
Department of Genetics and Plant breeding, Faculty of Agriculture and Natural Resources, Imam Khomeini International University, Qazvin, Iran.
3
Department of Horticultural Sciences and Agronomy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Abstract
This research was conducted in order to investigate the effect of biotic and abiotic elicitors (control, seaweed extract calcium chelate silver nanoparticles to improve the physiological and biochemical characteristics effective in flowering life of cut-flowers in four Dutch roses cultivars using a factorial experiment based on completely randomized design with four replications. The analysis of variance results showed that the main effects of cultivars and elicitors as well as the interaction effect of cultivars and elicitors were significant at the probability level of P≤0.01 for all traits: carbohydrates content, proline, electrolyte leakage, transpiration, the amount of ethylene, bacterial population, and vase life. With the used elicitors, the amount of proline, carbohydrate, electrolyte leakage, transpiration, ethylene, and bacterial population showed a significant decrease, and the maximum vase life observed with 10 mgl-1 silver nanoparticles. The lowest proline content and electrolyte leakage (18.68%) was observed in Samurai cultivar with the consumption of 3.5 grl-1 of calcium chelate, and 10 mgl-1 of silver nanoparticles, respectively. The lowest transpiration was related to the treatment of 2.5 mgl-1 silver nanoparticles compared to the control treatment. The lowest bacterial population was obtained in the Samurai cultivar with the treatment of 10 mgl-1 silver nanoparticles. The longest and lowest vase life was observed in Samurai cultivar with 10 mgl-1 silver nanoparticles (15.75 days) and in Delsoita (6.82 days) with the control treatment, respectively. Finally, 10 mgl-1 of silver nanoparticles were introduced as a suitable elicitor to increase the vase life of rose cut flowers
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