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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 3
First page : (222) Last page : (226)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6677

Influence of Paclobutrazol as Foliar Spray on Flowering parameters of Tuberose (Polianthes tuberosa L.) var. Prajwal

Vinod Kumar Nellipalli* and Arun Kumar Pal
Department of Floriculture and Landscape Architecture,
Bidhan Chandra Krishi Vishwavidyalaya, Mohanpur, Nadia, W.B, India – 741252
*Corresponding Author E-mail: vinod.nvk007@gmail.com
Received: 19.05.2018 | Revised: 22.06.2018 | Accepted: 27.06.2018  

 

 ABSTRACT

The field experiment was conducted in Horticulture Research Farm, Bidhan Chandra Krishi Vishwavidyalaya, Mohanpur, to study the effect of paclobutrazol as foliar spray at different dates, on growth, flowering and bulb yield of tuberose (Polianthes tuberosa L.) var. Prajwal. The experiment was carried out during the year 2016 - 2018 (March - March) to find out the suitable dose of paclobutrazol and amicable time of its spraying, to get maximum flower production. The experiment was laid out in augmented factorial randomized block design with three replications. The first factor contains three different doses of Paclobutrazol application P1 (100 ppm), P2 (200 ppm), P3 (300 ppm) as foliar spray and the second factor is with three different times of Paclobutrazol application i.e., S1 (45 DAP), S2 (65 DAP), S3 (85 DAP). A control plot is made without any application of paclobutrazol for assessing the performance of the paclobutrazol.  Combining the two year data, the pooled data reveals that, the number of days taken for first floret opening was obtained earlier, and the spike diameter was maximum with the application of P2 (200 ppm) at S1 (45 DAP) respectively. While the spike length was observed maximum with the application of P2 (200 ppm) at S3 (85 DAP). The rachis length was found maximum with the application of paclobutrazol P1 (100 ppm) at S3 (85 DAP). Whereas all the flowering parameters  were found minimum in the control treatment. It can be concluded that, the flowering parameters of tuberose var. Prajwal can be improved with the application of paclobutrazol @ 200 ppm at 85 days after transplanting (DAP).

Key words: Tuberose, Paclobutrazol, Spraying time, Flowering and Days after planting

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Nellipalli, V.K. and Pal, A.K., Influence of Paclobutrazol as Foliar Spray on Flowering parameters of Tuberose (Polianthes tuberosa L.) var. Prajwal, Int. J. Pure App. Biosci.6(3): 222-226 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6677