EFFECT OF DIFFERENT CONCENTRATION LEVELS OF NPK ON GROWTH, FLOWERING AND YIELD OF TUBEROSE (Polianthes tuberosa L.) CV. SHRINGAR

BHARTI SAO¹*, PUSHPENDRA VERTY², DEVI SINGH^3
1Department of Horticulture, Floriculture and Landscaping, Sam Higginbottom Institute of Agriculture Technology & Sciences, Allahabad, 211007, Uttar Pradesh
²Department of Horticulture, Floriculture and Landscaping, Sam Higginbottom Institute of Agriculture Technology & Sciences, Allahabad, 211007, Uttar Pradesh
³Department of Horticulture, Floriculture and Landscaping, Sam Higginbottom Institute of Agriculture Technology & Sciences, Allahabad, 211007, Uttar Pradesh
* Corresponding Author : bhartipink62@gmail.com

Received : 03-11-2016     Accepted : 13-11-2016     Published : 24-11-2016
Volume : 8     Issue : 57       Pages : 3137 - 3140
Int J Agr Sci 8.57 (2016):3137-3140

Keywords : NPK, Tuberose (Polianthes tuberosa), Rechis, Spike
Academic Editor : Ashutosh Sharma
Conflict of Interest : None declared
Acknowledgements/Funding : The authors are highly acknowledged to Director Research Services, Director instruction, Head Department of Horticulture SHIATS & my advisor, Department of Horticulture SHIATS Allahabad (U.P.) for help in conducting the trial successfully and guidance & technical support during field investigation
Author Contribution : None declared

The experiment was conducted at the Department of Horticulture, Sam Higginbottom Institute of Agriculture Technology & Sciences, Allahabad, (U.P.) during the period from March to November (2013) to investigate the Effect of different concentration levels of NPK on growth, flowering and yield of tuberose (Polianthes tuberosa L.) cv. Shringar. Twelve treatments were included in the trial viz; T0 (Control), T1 (25:50:20), T2 (50:80:40), T3 (75:110:60), T4 (100:140:80), T5 (125:170:100), T6 (150:200:120), T7 (175:230:140), T8 (200:260:160), T9 (225:290:180), T10 (250:320:200) and T11 (275:350:220) N,P,K kg ha-1 were tested in three replication. The experimental design was Randomized Block Design. The results reveal that fertilizer treatments had significant response on all parameters. The maximum plant height (70.90 cm), number of leaves/plant (33.53), number of tillers/clump (3.40), number of spike/clump (5.67), yield of spike/ha (656.31), number of bulbs/clump(17.38 g), weight of largest bulb (77.74 g) and diameter of largest bulb (5.58 cm) were produced by the treatment (T9) of N:P:K in the ratio of 225:290:180 kg/ha. It was the best treatment for good vegetative as well as reproductive growth. Application of N, P2O5 and K2O at 225:290:180 kg/ha may be applied.