Effect of organic manures and bio-fertilizers on growth, flowering and bulb production in tuberose

An experiment on the effect of organic manures and bio-fertilizers on growth, flowering and bulb production in tuberose cv. Single was carried out during 2007-08. The experiment was laid out in a factorial randomized block design with 12 treatments, replicated thrice. Tuberose cultivar Single when grown with vermicompost and PSB @ 1 kg/m(2) and 2 g/bulb, respectively, produced highest spike length (77.70 and 77.86 cm, respectively), maximum number of spikes per plant (1.49 and 1.49, respectively), weight of bulbs per plant, i.e. clump weight (283.58 and 295.90 g, respectively) and longevity of spikes (15.69 and 15.80 days, respectively).