Vol. 11, Issue 7 (2022)

Author(s):
K Karthik M Ganga, M Visalakshi and T Chitdeshwari

Abstract:
The present field experiment was conducted at the Department of Floriculture and Landscape Architecture, Horticultural College and Research Institute, TNAU, Coimbatore to investigate the response of Ixora (Ixora spp.) to foliar application of zinc, iron and boric acid on the vegetative growth parameters. The experiment was laid out in FRBD (Factorial Randomized Block Design) with two replications. Four varieties of Ixora spp. namely, Red (V₁), Pink (V₂), Orange (V₃) and Yellow (V₄) were used and tested with three micronutrients viz., FeSO₄, ZnSO₄ and Boric acid applied in various concentrations. Different combinations of these micronutrients were applied as foliar spray at monthly intervals. The results revealed that foliar spraying of 0.5% ZnSO₄ + 0.5% FeSO₄ + 0.2% Boric acid recorded the maximum values for all the vegetative growth parameters as well as leaf area and chlorophyll content, indicating the importance of micronutrients. Among the varieties, Orange (V₃) followed by Red (V₁) had recorded maximum values for the vegetative growth parameters.