Effect of Spacing on Yield of Tuberose at Farmers Field in Karnataka

A field experiment was conducted to study the effects of spacing on growth, flowering and spike yield in Tuberose (Polianthes tuberose L). The experiment consisted of three different plant spacing viz., S₁-45x30 cm, S₂-30x30 cm and S₃-30x15 cm with seven replications under CRBD. The result revealed that the significant effect on growth, flowering and spike yield was observed by spacing. The spacing of 30 x 30cm were found to be optimum for better growth and recorded significant plant height (53.6 cm) at 180d after planting, maximum number of leaves/plant (111.8) and number of side shoots/pant (21.1) at 360d after planting, which was at par with 45 x 30 cm spacing. Flower characters such as early flowering and duration of flowering were not significantly influenced by spacing, but maximum length of floret (5.7 cm), diameter of floret (2.9 cm) and weight of 100 florets (110.4 g) were found to be optimum as compared to closer spacing of 30x15 cm. Spike characters like early spike emergence (59.2d) with maximum spike girth (2.3 cm), weight of spike (118.3 g), number of florets per spike (51.2) and cumulative spike (4.4 spike/plant/year) were significantly higher with spacing of 45 x 30 cm and was statistically at par with spacing 30 x 30 cm. Planting of tuberose bulbs could be recommended at 30 x 30 cm spacing to obtain higher productivity of superior quality flowers and spike yield.