STUDIES ON EFFECTS OF DIFFERENT SOURCES AND LEVELS OF CALCIUM ON GROWTH, FLOWERING, QUALITY AND YIELD IN ASIATIC LILY (Lilium spp.)

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Date
2023-12-18
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College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga
Abstract
An experiment entitled “Studies on effects of different sources and levels of calcium on growth, flowering, quality and yield in Asiatic lily (Lilium spp.)” was conducted at the experimental block (under naturally ventilated polyhouse) of the Department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere, under Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Iruvakki, Shivamogga during 2022-2023. The experiment was laid out in Randomized Complete Block Design (RCBD) consisting of thirteen treatments viz., T1 (control), T2 (30 g/m2 calcium ammonium nitrate), T3 (40 g/m2 calcium ammonium nitrate), T4 (50 g/m2 calcium ammonium nitrate), T5 (30 g/m2 calcium nitrate), T6 (40 g/m2 calcium nitrate), T7 (50 g/m2 calcium nitrate), T8 (100 g/m2 calcium oxide), T9 (200 g/m2 calcium oxide), T10 (300 g/m2 calcium oxide), T11 (20 g/m2 dolomite), T12 (30 g/m2 dolomite) and T13 (40 g/m2 dolomite) replicated thrice. The application of dolomite at 40 g/m2 (T13) recorded minimum days for bulb sprouting (3.73), maximum plant height (73.49 cm), number of leaves (60.47), leaf length (11.64 cm), leaf breadth (1.81 cm), leaf area (852.50 cm2), leaf area index (4.26), minimum days taken for flower bud initiation (29.80), first floret opening (54.53), 50 per cent flowering (61.33), maximum duration of flowering (17.33), maximum number of buds per spike (3.60), bud length (8.53 cm), bud diameter (21.64 mm), petal length (11.37 cm), petal breadth (4.37 cm), length of the flower stalk (71.85 cm), girth of the flower stalk (6.76 mm), weight of the flower stalk (68.82 g), vase life of flowers with and without anthers (8.17 and 9.55 days, respectively), number of bulbs per plant (3.26), weight of bulb per plant (64.40 g), diameter of bulb (8.60 cm) and number of bulblets per plant (5.80) with maximum B:C ratio of 2.76 compared to control. Hence, the application of dolomite at 40 g/m2 may be recommended for commercial cultivation of Asiatic lily.
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