Vol. 11 No. SP
Effect of bulb splitting on tuber production of Tuberose (Polianthes tuberosa L.) cv. Prajwal in the plains of West Bengal
Abstract: To study the methods of bulb production of tuberose cv. Prajwal, an experiment was conducted at the Horticultural Research Farm, Mondouri, Bidhan Chandra Krishi Viswavidyalaya during the year 2009 – 2011 with five bulb size of tuberose - Whole bulb, ½ bulb, 1/4th bulb, 1/6th bulb and 1/8th bulb. Each bulb size (treatment) was replicated four times in Randomized Block Design. Planting was done in April 2009, at a spacing of 30 cm X 30 cm. Highest number of bulbs per clump (large, medium and small) per plot was recorded in whole bulb (4.22, 9 and 30.33 nos.) followed by ½ bulb (3.44, 6.77 and 15.33 nos.) and maximum weight of bulbs per clump (large, medium, small) was produced by whole bulb (192.44, 95.33, 55.55) followed by ½ bulb (185.22, 92.50, 34.99). The maximum (Size) diameter of bulbs per clump(large, medium and small) was produced by whole bulb (4.32cm, 1.86 cm, 0.92 cm) followed by ½ bulb (4.27 cm, 1.64 cm, 0.92 cm). Dry matter percentage of bulb was highest in whole bulb (35.72%) followed by ½ bulb (35.51%). The interpretation of the analyzed data reveals that whole bulb and ½ bulb performed comparatively better than other bulb sizes in respect to good quality bulb production. Therefore along with the whole bulbs farmers can use the ½ bulb size with a portion of the disc plate intact for propagation and bulb production of Prajwal under the Gangetic plains of West Bengal.
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