Assessment of paclobutrazol effect as foliar spray on spike yield parameters of tuberose (Polianthes tuberosa. L) var. Prajwal
Vinod Kumar Nellipalli and Arun Kumar Pal
A field experiment was carried out 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 suitable 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 to observe the difference in the treatment effect. The results reveal that, foliar application of 200 ppm of Paclobutrazol (P2) on the tuberose plants had given the maximum spike yield per plot, spike yield per hectare, number of flowers per spike and the weight of 10 florets. With respect to different spraying times foliar application of paclobutrazol at 65 DAP (S2) on the tuberose plants had given the maximum spike yield per plot, spike yield per hectare, number of flowers per spike and the weight of 10 florets. Significantly maximum number of spikes per plot, spikes per hectare, number of florets per spike and weight of 10 florets were observed with the treatment combination P2S2 (200 ppm PBZ and 65 DAP).
How to cite this article:
Vinod Kumar Nellipalli, Arun Kumar Pal. Assessment of paclobutrazol effect as foliar spray on spike yield parameters of tuberose (<em>Polianthes tuberosa</em>. L) var. Prajwal. Pharma Innovation 2018;7(12):37-39.