Influence of Bio-Stimulants on Flowering, Yield and Disease Incidence in Chrysanthemum (Dendranthema grandiflora T.) cv. Local Yellow

Author: Sivalakshmi B., Madhavan S., Sirisha T., Sai Mohan A., Raju D.V.S., Dorajee Rao A.V.D. and Ravindra Kumar K.

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Abstract

The present experiment was conducted to study the influence of bio-stimulants on flowering, yield and disease incidence in chrysanthemum cv. Local yellow. Different bio-stimulant formulations such as Trichoderma viride (9, 18 and 36 g per plant), Pseudomonas fluorescens (9, 18 and 36 g per plant) and Arbuscular Mycorrhizal Fungi (9, 18 and 36 g per plant) were applied to soil. Significant variations in flowering and wilt disease incidence were noticed with application of bio-stimulants. The plants treated with T. viride (18 g per plant) recorded earlier days to flower bud formation (62.66 days) and flowering (82.20 days), maximum duration of flowering (54.55 days), highest catalase activity (0.85 units/mg protein/min), peroxidase activity (0.99 units/mg protein/min) and lowest disease incidence (18.00 %) and percent disease index (16.66 %). Arbuscular Mycorrhizal Fungi (18 g per plant) recorded maximum shelf life (5.10 days), capitulum diameter (6.21 cm), flower yield per plot (14.14 kg) and number of pickings (10.12). Bio-stimulants in horticulture has been the focus of scientific interest for quite some time now. As the need for sustainable, eco-friendly and innovative horticulture solutions grows, more and more studies are being done on the efficacy of bio-stimulants.

Keywords

Trichoderma viride, Pseudomonas fluorescens, Arbuscular Mycorrhizal Fungi, Flowering and Fusarium wilt

Conclusion

Application of Trichoderma viride @ 18 g per plant was found to be best for early flowering, duration of flowering, induction of catalase and peroxidase activity and reduce wilt incidence. Arbuscular Mycorrhizal Fungi @ 18 g per plant was the best treatment with respect to shelf life of flowers, capitulum diameter, higher number of flower pickings and highest flower yield per plot.

References

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How to cite this article

Sivalakshmi B., Madhavan S., Sirisha T., Sai Mohan A., Raju D.V.S., Dorajee Rao A.V.D. and Ravindra Kumar K. (2023). Influence of Bio-Stimulants on Flowering, Yield and Disease Incidence in Chrysanthemum (Dendranthema grandiflora T.) cv. Local YellowBiological Forum – An International Journal, 15(10): 1375-1379.