Ecology, Environment and Conservation Paper

BULB PRODUCTION OF TUBEROSE (POLIANTHES TUBEROSA LINN.) CV. PRAJWAL AS INFLUENCED BY NPK, FYM, AND VERMICOMPOST

Tadar Jamja, David Siangshai, Shaik Faheem Akhtar and Ruthy Tabing

Abstract

Commercial bulb production is an important aspect in the floriculture industry for ornamental Plants propagated through bulbs, asexually. Production of optimum bulb size is crucial in tuberose, as it influences the plant characteristics, flowering and yield parameters. The present study investigated the response of tuberose (Polianthes tuberosa Lin.) to organic amendments (FYM, vermicompost) and recommended dose of NPK in terms of bulb production. The experiment consisted of 11 treatments and was replicated 3 times. The treatment combinations were T1 (Control), T2 (Recommended dose of NPK/60:30:45 kg/ha), T3 (FYM @25 tons/ha), T4 (FYM @50 tons/ha), T5 (FYM @75 tons/ha), T6 (Vermicompost @10 tons/ha), T7 (Vermicompost @20 tons/ha), T8 (Vermicompost @30 tons/ha), T9 (FYM + Vermicompost @25 tons/ha + 10 tons/ha), T10 (FYM + Vermicompost @50 tons/ha + 20 tons/ha) and T11 (FYM + Vermicompost @75 tons/ ha + 30 tons/ha). Treatment T11 had the highest bulblet the world diameter, mother bulb diameter (4.69 cm), bulblet weight (7.34 g), mother bulb weight (69.02 g), maximum number of bulbs/clump (29.10), clump weight (214.44 g) and 1.50 kg bulb yield/unit area. Thus, treatment T11 was found to be the best treatment combination among all the treatments in terms of bulb production.