Antifungal Effect of Chitosans and Chito-oligosaccharides against Early Blight of Tomato

Ramakrishna, A; Desai, Suseelendra; Devi, G. Uma; Maheswari, T. Uma

doi:10.20546/ijcmas.2018.707.007

Cited by 1 publication

(2 citation statements)

References 7 publications

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“…Two potential antagonists (Pseudomonas / Trichoderma) and two effective chitosans (Chitosan DA 10 and 134), identified after preliminary screening [10,11,12]. Further that evaluated either singly or in combinations for their efficacy against early blight of tomato under greenhouse conditions.…”

Section: Methodsmentioning

confidence: 99%

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Management of Early Blight of Tomato Caused by Alternaria solani by Using Bio-inoculants and Chitosans under Greenhouse Conditions

Ramakrishna,

Desai,

Devi

et al. 2024

J. Exp. Agric. Int.

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Tomato (Lycopersicon esculentum.L) is one of the most important economic vegetable crop cultivated in India. Among various diseases caused by fungal, bacterial and virus pathogens, early blight caused by Alternaria solani is a major concern for the farmers as it not only affects vegetative parts but also fruits. The study was aimed at developing eco-friendly alternatives for chemicals currently used for the management of A. solani by using biocontrol agents and chitosans with a spin-off benefit of plant growth promotion and activate innate defense mechanisms. The potential biocontrol agents identified in the previous experiments viz. Trichoderma (T4), Pseudomonas (P28) isolates and effective chitosans DA10, 134 were used either singly or in combinations for their efficacy against A. solani in vivo against Propiconazole @ 0.1% and water spray, as positive and negative controls treatments, respectively. Propiconazole @ 0.1% was highly effective in reducing the disease over other treatments. However, the treatments viz. seed coating with Trichoderma (T4) coupled with DA 10 chitosan (simultaneously applied) or DA 10 chitosan alone were also significantly effective and on par with the fungicide treatment indicating that alternatives to fungicides could be explored after field evaluation and large-scale demonstration of these treatments and their economic viability.

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Section: Methodsmentioning

confidence: 99%

“…The experiments were carried out to find the effect of potential biocontrol agents in combination with effective chitosans and to assess their ability to manage early blight pathogen. A total of 14 treatments were configured based on the results from preliminary screening [10,11,12].…”

Section: Evaluation Of Combination Of Biocontrol Agents and Chitosans...mentioning

confidence: 99%

Management of Early Blight of Tomato Caused by Alternaria solani by Using Bio-inoculants and Chitosans under Greenhouse Conditions

Ramakrishna,

Desai,

Devi

et al. 2024

J. Exp. Agric. Int.

View full text Add to dashboard Cite

show abstract

Antifungal Effect of Chitosans and Chito-oligosaccharides against Early Blight of Tomato

Cited by 1 publication

References 7 publications

Management of Early Blight of Tomato Caused by Alternaria solani by Using Bio-inoculants and Chitosans under Greenhouse Conditions

Management of Early Blight of Tomato Caused by Alternaria solani by Using Bio-inoculants and Chitosans under Greenhouse Conditions

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