Effect of garden fertilizer on growth and flower production of various rose cultivars

The research project was carried out to find out the effect of different garden fertilizers with different NPK ratios on growth development and flower production of various rose cultivars. The study was done at Floriculture area, University of Agriculture, Faisalabad during the year 2001. The experiment was laid out according to RCBD in split plot arrangement with three replications. The fertilizer replications were To = Control T1 = 15 + 30 gm/pt Ammonium Phosphate + 15 gm muriate of potash T2 = 60 gm/pt Urea + 30 gm/pt Triple Super Phosphate + 20 gm/pt Muriate of Potash Varieties Were Elina Yellow, Doris Tysterman and John watrer. The fertilizer treatments and varieties were kept in main plot and sub plots respectively. In T1 the whole garden fertilizer was applied with the ratio of 15:30:.15 in three split doses. In T2 urea was applied in three equal split doses 15, 30 and 45 days of plantation. A single dose of phosphate and potash was applied after 15 days of plantation plant to plant distance and row to row distance was kept 3 ft. All other agronomic practices were kept constant, throughout the experiment. The results obtained can be summarized as under. Increasing plant height varietal difference showed the highly significant result whereas different doses of fertilizer also shows highly significantly results both alter 45 and 90, days. Variety V2 showed best results with treatment T2 90 days. For number of leaves per plant treatment T2 and variety 3 showed good results after both 45 and 90 days. For number of branches per plant the varietial difference showed highly significant results after 90 days. Variety V3 showed maximum number of branches both after 45 and 90 days with treatment T2. For size of flower both varieties and interaction between fertilizer and varieties showed significant results but different doses of fertilizer showed non significant results. Variety V2 with treatment T1 showed maximum size of flower both after 45 and 90 days. For number of flowers the interaction of varieties with different doses of fertilizers were found highly significant both after 45 and 90 days. Variety V3 showed maximum number of flowers with treatment T1 for both 45 and 91 days. Quality of flowers was improved by treatment T1. For longevity of flowers variety V1 John Watrer showed maximum longevity both for 45 and 90 days. Number of petals per flower the effect of different doses of fertilizer was found non significant both after 45 and 90 days. So after the results we can conclude that T1(15:30:15) showed best results its compared to T2 and To. Whereas variety John watrer showed best results as compared to V2 Doris Tysterman and V1 Elina Yellow.