• R.Sendhilnathan
• K.Manivannan
• M.Rajkumar
• R.Sureshkumar

To study the influence of different graded levels of nitrogen and phosphorus on the growth and flower attributes of Tuberose (Polianthes tuberosa L.) cv. Single. The experiment was carried out at the Floriculture unit, Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalainagar. The effects of four levels of nitrogen viz., 0, 50, 100 and 150 kg ha-1 and four levels of phosphorus viz., 0, 40, 60 and 80 kg ha-1 with all possible combinations were investigated in the Factorial Randomized Block Design with 16 treatments, each replicated thrice. The growth parameters like plant height, number of leaves, leaf area, number of side shoots per clump and flowering parameters like number of days taken for flower spike emergence, length of spikes (cm), length of the rachis (cm), number of florets per spike were found to be favorably influenced by the application of higher levels of nitrogen and phosphorus. They were found to be maximum with application of nitrogen @ 150 kg ha-1 and phosphorus @ 80 kg ha-1. Considering the growth and flower attributes, application of 150 kg nitrogen and 80 kg phosphorus ha-1 combination was found to be the best for tuberose.

Studies on influence of different graded levels of nitrogen and phosphorus on growth and flower attributes of Tuberose (Polianthes tuberosa L.)

"Studies on influence of different graded levels of nitrogen and phosphorus on growth and flower attributes of Tuberose (Polianthes tuberosa L.) ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.194-200, June 2019, Available :http://www.jetir.org/papers/JETIR1906K17.pdf

"Studies on influence of different graded levels of nitrogen and phosphorus on growth and flower attributes of Tuberose (Polianthes tuberosa L.) ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp194-200, June 2019, Available at : http://www.jetir.org/papers/JETIR1906K17.pdf