BIOLOGICAL CONTROL OF BACTERIAL BLIGHT DISEASE OF POMEGRANATE USING SILVER: AN ECO-FRIENDLY APPROACH

Author (s) : Ms. M.Jasmine, Dr. S.Ambiga

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Abstract :
Bacterial blight disease caused by the pathogenic bacterium Xanthomonas citri subsp. punicae is a significant threat to pomegranate cultivation, leading to severe economic losses for farmers worldwide. Traditional control measures, such as chemical pesticides, have demonstrated limited efficacy and often raise concerns about environmental contamination and the development of resistant strains. Therefore, an urgent need exists for sustainable and eco-friendly alternatives to manage this devastating disease.. This study aimed to explore the potential of using silver nanoparticles (AgNPs) as a novel biological control agent against bacterial blight in pomegranate. AgNPs are known for their broad-spectrum antimicrobial properties and have shown promise in various agricultural applications. In this research, AgNPs were synthesized through a green, cost-effective, and environmentally friendly method using plant extracts. The synthesized AgNPs were characterized for size, shape, and stability using advanced analytical techniques. For in vivo trials, pomegranate plants were treated with AgNPs via foliar spray and root application. The results revealed a remarkable reduction in disease severity and lesion development in treated plants, leading to enhanced plant health and overall growth. Additionally, AgNPs-treated plants exhibited a significant increase in antioxidant enzyme activities, indicating improved defense mechanisms against bacterial stress. Overall, this research highlights the potential of silver nanoparticles as a sustainable and environmentally safe alternative for managing bacterial blight disease in pomegranate cultivation. The results indicate that AgNPs could serve as a viable tool in integrated pest management strategies, contributing to reduced reliance on chemical pesticides and promoting sustainable agriculture. Further research is warranted to optimize application methods and to assess the long-term effects of AgNPs on larger agricultural scales, ensuring their safe and effective implementation in pomegranate farming practices.

Keywords : AgNPs, Xanthomonas citri, phytotoxic, antioxidant enzyme, silver nanoparticles

Conference Date : 13/11/2020

Pages : 268

Paper ID : 20268