Department of Horticulture, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, District: Udhani Singh Nagar, Uttaranchal. e-mail: anilksingh_hort@rediffmail.com; aks234644@yahoo.co.in
Two years old plants of rose cv. Gruss-an-Teplitz having uniform growth were selected for the study. The treatments comprised of four levels of nitroge (200, 400, 600 and 800 kg/ha) and their four split doses (2, 3, 4 and 5). Number of second order lateral shoots/plant, dry weight of leaves, leaf area, average weight of flower and number of flpwers/m2/year significantly increased by application of 800 kg N/ha, which were at par with 600 kg N/ha. However, maximum fresh biomass was recorded with 600 kg N/ha. Maximum number of second order lateral shoots/plant was recorded by two split applications of nitrogen; whereas three split applications gave maximum leaf area, which was at par with two split applications. Split applications of nitrogen treatment did not show any conspicuous effect on various flowering attributes. This indicated that nitrogenous fertilizers can be applied in two split application in rose cultivation.
Rose, nitrogen, split application
