PLANT GEOMETRY AND FERTIGATION STUDIES IN FLORIBUNDA ROSE CV. CHARISMA
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Date
2015-07
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K.R.C. COLLEGE OF HORTICULTURE, ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
An experiment was conducted to find out the optimum plant geometry, nutrient levels and method of application of nutrients on growth, yield and quality of rose cv. Charisma during 2014-15 at University of Horticultural Sciences, Bagalkot.
The experiment was laid out in three Factorial Randomized Complete Block Design with 12 treatment combinations comprising of two different plant density viz., S1 (0.9 x 0.9 m) and S2 (1.50 x 0.75 x 0.60 m) and three levels of nutrient viz., F1 (7.5:7.5:11.25 g NPK/plant/year),F2 (10:10:15 g NPK/plant/year) and F3 (12.5:12.5:18.75 g NPK/plant/year) and two methods of nutrient applications viz., M1 (fertigation) and M2 (soil application).
The study revealed that there was a variable response with respect to growth, yield and quality parameters of rose cv. Charisma for different plant density, nutrient levels and method of nutrient application. Based on the results of the study, it is concluded that, the maximum number of branches (7.60), number of leaves (268.33), North to South plant spread (45.33 cm), East to West plant spread (47.33 cm), leaf area (1127.00 cm2) and total chlorophyll content (0.963 mg/g) were recorded in S1M1F2 and S2M2F1 recorded minimum days to 50 per cent flowering and days to first harvest (49.00 and 64.00 days, respectively). Where as, non significant results were observed with respect to plant height, shelf life and flower diameter.
The highest number of flowers (238 flowers/m2/year) and flower yield (4.76 t/ha) were observed in S2M1F2. Whereas, S2M1F1 obtained higher net returns (` 113651.7) and benefit cost ratio (1.94) compared to other treatments.
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TH525
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