Effect of organic manures on floral attributes of tuberose (Polianthes tuberosa L) cv Phule Rajani

A study was conducted to determine the effect of organic manures on floral attributes of tuberose (Polianthes tuberosa L cv Phule Rajani). The experiment was laid out in randomized block design with ten treatments and three replications. Bulbs of tuberose cv Phule Rajani were planted at a spacing of 30 x 30 cm in plots of size 1.5 x 1.5 m accommodating twenty five bulbs per plot. The different treatments were T₁ (Control), T₂ (Vermicompost 2 kg/m²), T³(Mustard oil cake 500 g/m²), T⁴(Karanja oil cake 500 g/m²), T⁵(Neem oil cake 500 g/m²), T⁶(Groundnut oil cake 500 g/m²), T₇ (Vermicompost 1 kg/m²+ mustard oil cake 250 g/m²), T₈(Vermicompost 1 kg/m²+ Karanja oil cake 250 g/m²), T₉(Vermicompost 1kg/m²+neemoil cake250g/m²) and T₁₀(Vermicompost 1kg/m² +groundnut oil cake 250g/m²). The results revealed that organic manures showed significant differences for floral attributes of the plant. Among all the organic manures and their combinations treatment T₃ (Mustard oil cake 500 g/m²) recorded significantly minimum days for the early opening of first flower from planting (149.88 days), spike length (97.36 cm), rachis length (26.52 cm) and diameter of spike (0.52 cm) compared to other treatments. Maximum number of spikes per plant (5.77), number of florets per spike (50.88), floret length (5.81 cm), floret diameter (3.70 cm), bloom life (22.22 days), vase life (15.77 days) and water uptake by cut spike in vase (51.3 ml) were recorded in treatment T₈ (Vermicompost 1 kg/m²+Karanja oil cake 250 g/m²) compared toother treatments. For getting better quality of spike under organic farming treatments T₃ (Mustard oil cake 500 g/m²) and T₈ (Vermicompost 1 kg/m² + Karanja oil cake 250 g/m²) are recommended in tuberose cv Phule Rajani.