Effect of Magnetized Nutrient Solution on Growth, Some Physiological Properties and Content of Mineral Elements of Two Rose Cultivars in Hydroponic Culture Conditions

This experiment was performed to investigate the effect of magnetized nutrient solution under four electromagnetic treatments (0, 20, 40 and 80 GAUSS) on growth, physiological properties and nutrient elements of two rose cultivars (Samurai and Luxor) in a factorial completely random design with three replications. In each experimental unit, four bushes were planted in PUMedia medium and were nourished with nutritional solution by digital timer in open system. The results showed that pH and electrical conductivity of the nutrient solution were slightly reduced in all treatments. Flowering stem high increased significantly in 40 GAUSS treatment for Samurai cultivar 23% and 20 GAUSS treatment for Luxor cultivar 16%. Stem diameter increased significantly in 40 GAUSS treatment for Samurai cultivar 22% and 20 GAUSS treatment for Luxor cultivar 10%. The leaf area increment of the two cultivars was significant and its amount in 40 GAUSS treatment was 68%. Phosphorous concentration of cultivars decreased significantly. Flower number, calcium and nitrogen concentration, as well as leaf chlorophyll and flower color indices weren't affected. Vase life changes in both cultivars were slight and insignificant in all treatments.