• R.Sendhilnathan
• P.Manimaran
• R.Suresh kumar
• M.Rajkumar
• T.R.Bharatkumar

An experiment was carried out to study the influence of bulb size and Gibberlic acid on sprouting of Tuberose (Polianthes tuberosa L.) cv. Single in floriculture unit, Department of Horticulture, Faculty of Agriculture at Annamalainagar. The design of the experiment was Completely Randomized Block Design with 10 treatments combination and replicates three times. Three different sizes of bulbs of small size (1 - 2 cm), medium size (2.5 - 3 cm) and large size (3 - 4.5 cm) treated with three doses of Gibberllic acid (GA3 @ 200, 300 and 500 ppm). Among the treatments, it can be concluded that bulb with medium size (2.5 - 3 cm) along with application of Gibberllic acid @ 500 ppm was found most effective in minimizing the days taken for sprouting (14.28 days ) by increasing sprouting percentage (99.33), plant height (68.75 cm), number of leaves (38.34 plant-1) and leaf area (39.78 cm2 ) and dry matter production (17.48 g plant-1). The sprouting and growth parameters of Tuberose were minimum in control. Thus the present investigation clearly indicate that medium size bulb (2.5 - 3 cm) treated with application of Gibberllic acid GA3 @ 500 ppm could adjudged as the best treatment in sprouting and growth of Tuberose.

Tuberose , Gibberllic acid, sprouting

"Influence of bulb size and Gibberlic acid on sprouting and growth of Tuberose (Polianthes tuberosa L.) cv. Single", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.585-588, February-2019, Available :http://www.jetir.org/papers/JETIR1902973.pdf

"Influence of bulb size and Gibberlic acid on sprouting and growth of Tuberose (Polianthes tuberosa L.) cv. Single", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp585-588, February-2019, Available at : http://www.jetir.org/papers/JETIR1902973.pdf