Evaluation of organic inputs on growthdynamics and yield of spray chrysanthemum (Chrysanthemum morifolium Ramat) cv. Katinka

The study aimed to assess the impact of different eco-friendly inputs on the performance of spray Chrysanthemum (Chrysanthemum morifoliumRamat) cv. Katinka. The investigation was done in the year 2022 at the Experimentalcum-Research Farm, Department of Horticulture, School of Agricultural Sciences, Nagaland University, Nagaland. Randomized Block Design (RBD) with 10 distinct treatments and replicated thrice to examine various vegetative and flowering parameters and yield. The vegetative parameters were observed superior in the plants applied withAzotobacterand phosphotika (T₆) where maximum plant height (46.50 cm), plant spread (27.07 cm), plant base girth (2.01cm) and number of primary branches (11.13 Nos) were observed. Flowering parameters were also superior in the plants applied with Azotobacter + Phosphotika (T₆). Minimum days to bud initiation (41.47 days), days to bud burst (74.60 days), days to full bloom (82.47 days), maximum flowering duration (65.67 days) and highest number of flowers (38.00 Nos.) were observed with the sametreatment . Flower diameter and weight of single flower was found superior in T₁₀(Azotobacter+ Phosphotika + green leaf manure) (5.90cm) and (2.02g) respectively. Maximum vase life was observed in the flowers of T₆(Azotobacter + Phosphotika) and T₈(Jeevamrutha + green leaf manure) (22-days). Yield of the flowers was also found to be maximum in the plants of T₆(Azotobacter + Phosphotika) (43.73 qha^-1).