Comparative Performance of Planting Materials and Standardization of Nutrient Requirement for High Yield, Quality and Early Spike Development in Tuberose (Agave amica Medik.) cv. Arka Prajwal

The study was carried out at Vegetable Research Station, TNAU, Palur, Tamil Nadu during 2021to2022. experiment laid in Factorial Randomized Block Design (FRBD) with eight treatments and three replications. Planting materials used for the were bulbs bulblets. nutrient combinations tried foliar application of micronutrient like zinc sulphate (0.2%), Ferrous (0.5%), Copper (0.4%) Boric acid (0.2%) on 30, 60 90 DAP, individually combination 25 t ha-1 FYM recommended dose fertilizer (200:200:200 kg NPK). control maintained RDF. Various biometric observations growth flowering attributes tuberose observed all different stages. result present investigation revealed that among interaction effects,B1N8[RDF + ALL 19 (NPK) GA3@ 200 ppm (2 spray 30 days intervals) ZnSO4 FeSO4 (0.5%) H3BO3 (0.2 %) CuSO4 (0.4 %)] recorded highest plant height (95.12 cm), leaf length (51.85 width (2.4 number leaves per plants (42.67), rachis (34.87cm), floret/spikes (46.66), flower duration (18.12 days), floret (6.92 cm) diameter (4.39cm) followed by treatment B2N8 which (90.44 (48.48 (2.2 (39.78), (30.42 (44.95), (19.93days), (6.45cm) (4.21cm). From effect, combinationB2N1 [control (RDF) 200:200:200 NPK] lowest (72.36 (42.81 (1.12 (43.00), (25.11cm), (37.00), (15.23days), (5.04 (3.02 cm).