The present investigation “Studies on the effect of integrated nutrient management on growth, flowering and yield of Italian aster (Aster amellus L.) cv. ‘Purple Multipetal’” was carried out at the Floricultural Research Station, (Agricultural Research Institute) Rajendranagar, Sri Konda Laxman Telangana State Horticultural University, Hyderabad during September 2017 to January 2018. The experiment was conducted in a Randomized Block Design with three replications and eight treatments. Among all treatments application of RDF 50% + RDF 50% through Vermicompost + Azospirillum + PSB (T7) was found maximum plant height at 30 (18.36 cm), 60 (32.20 cm), 90 (52.16 cm) and 120 (64.25 cm) DAP, plant spread E-W (17.23, 28.36, 30.52 and 34.30 cm), N-S (14.33, 26.63, 29.46 and 33.4 cm), number of leaves per plant (15.20, 45.06, 81.02 and 198.06) at 30, 60, 90 and 120 DAP respectively and number of suckers per plant (6.33, 10.16 and 15.46) at 60, 90 and 120 DAP respectively. Respect to flowering and yield parameters minimum number of days (69.66 days) taken to flower bud initiation and 50 percent flowering (81.73 days), maximum number of flowers per plant (300.33), number of flowers per spike (181.00) number of spikelets per spike (35.20), number of flower spikes per plant (4.20), number of flower spikes per plot (105.00), number of flower spikes per ha. (4.66 lakhs) was recorded in T7 (RDF 50% + RDF 50% through VC + Azo + PSB).

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