Studies on the Effect of Biostimulants on Quality of Cut Flower of Chrysanthemum (Dendranthema grandiflora) cv. Denjigar Whitec

The aim of this study was to investigate the effect of biostimulants on quality of cut flower of Chrysanthemum (Dendranthema grandiflora) cv. Denjigar White”. It was carried out at naturally ventilated polyhouse at Ammapuram, village of Thorrur mandal, Mahabubabad district near JVR Horticulture Research Station, Malyal, Mahabubabad district during 2020- 2021. The treatments used were Ascophyllum nodosum (2.5, 5ml L-1), Rhodophyte extract (0.2, 0.4g L-1), Potassium humate (1.5, 3g L-1), Fulvic acid 10% + Seaweed 8% + Spirulina 6 % (2, 4 g L-1) and control (Water spray) in Randomized Block Design (RBD) with nine treatments and each treatment was replicated thrice. Among the treatments, the treatment T2 (Ascophyllum nodosum @ 5 ml L-1) recorded maximum flower diameter (7.48 cm), individual flower weight (6.55 g), stem length (72.10 cm), vase life (21.60 days) and shelf life (5.84 days), gross returns (₹ 76,93,200), net returns (₹ 59,82,204) and best benefit cost ratio (3.50). However, control recorded minimum in all the parameters.