The Effect of Different Concentrations of Fertilizer Hydroflex F and Calcium Nitrate on Characteristics the 'High Magic' of Hybrid Rose Cv. 'High Magic' In Soilless Culture

Rose flower (Rosa hybrid, L.), play an important role in floriculture industry in Iran. Since long, feeding in Hydroponic has been considered as a most limiting factor that adversely affects the growth and development of many crops in the world. This experience was to evaluate the effect of different amounts of special fertilizer for cut flowers and calcium nitrate on quantitative and qualitative characteristics of hybrid rose cv. 'High magic' in Hydroponic. This research was conducted at shahrekord University in the greenhouse in October 2011. The plants were fed with hydroflex F fertilizer at levels of 500, 900 and 1300 mg.L -1 and calcium nitrate at concentration, 500, 700, 900 and 1100 mg.L -1 . The experiment was carried out in a completely randomized design with three replications. The measured traits were including, stem length, stem diameter, stem fresh and dry weight, cut flowers fresh weight, bud diameter, flowering time, number of cut flower, vase life, total chlorophyll. Results showed that increase in concentrations of hydroflex F fertilizer had significant effecter stem diameter, stem fresh and dry weight, cut flowers fresh weight, number of cut flowers, flowering time, and vase life. Calcium nitrate treatment factors also increased the stem length, stem diameter, stem fresh and dry weight, cut flowers fresh weight, bud diameter, number of cut flowers and vase life. Interactions between treatments were also significantly increased content total chlorophyll. In this study, both treatments were improvements in most indicators of development. Index Terms — Rose hybrid, Hydroflex F, calcium nitrate