Department of Horticulture, College of Ariculture Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, District, Udham Singh Nagar, Uttaranchal, 263 145, e-mail: anilksingh_hort@rediffmail.com
An experiment was conducted at the Floriculture Section, Department of Horticulture, G.B.P.U. A.&T., Pantnagar, to evaluate the effect of nitrogen, Azotobacter and farmyard manure on growth and flowering in rose cv, Gruss-an-Teplitz. Treatments comprised three levels of nitrogen (200,400 and 600 kg/ha) and two levels each of Azotobacter (uninocukted and inoculated) and FYM (0 and 5 t/ha). Nitrogen levels significantly influenced all the growth and flowering parameters. Nitrogen at 600 kg/ha resulted in production of maximum number of leaves, leaf biomass and number of second order lateral shoots/plant, leaf area and length of first order lateral shoots. Number and weight of flowers/m2 during first and second flushes were also significantly higher with 600 kg N/ha. However, early bud appearance was recorded with 400 kg N/ha. Maximum leaf area, length of first order lateral shoots, number and weight of flowers/m2 during first and second flush were observed with inoculation of Azotobacter treatment Application of FYM (5 t/ha) resulted in production of maximum leaf area, length of first order lateral shoots, number of flowers/m2 during second flush and weight of flowers/m2 during first and second flushes.
Azotobacter, farmyard manure, nitrogen, rose
