Antifungal activity of plants extracts against Alternaria solani, the causal agent of early blight of tomato

Ravikumar, M. C. and Garampalli, Rajkumar H. (2013) Antifungal activity of plants extracts against Alternaria solani, the causal agent of early blight of tomato. Archives of Phytopathology and Plant Protection, 46 (16). pp. 1897-1903. ISSN 1477-290

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Abstract

Aqueous extracts of 39 plants selected from local flora were evaluated for antifungal potential against Alternaria solani, causing early blight of tomato, at 4% concentration in Potato Dextrose Agar by poison food technique. Out of these, 13 plant extracts significantly reduced the mycelial growth of the pathogen, according to ANOVA, Tukey's post-test. Inhibition rate of above 20% was shown by seven plant extracts namely Crotalaria trichotoma (36.6%), Citrus aurantifolia (27.3%), Azadirachta indica (23.7%), Polyalthia longifolia (23.3%), Datura metel (21.3%), Muntingia calabura (20.09%) and Oxalis latifolia (20.09%). At 2% concentration, six extracts showed significant growth inhibition namely, C. trichotoma (16.6%), A. indica (10%), Capsicum annum (7.1%), D. metel (6.6%), P. longifolia (6.3%) and C. aurantifolia (5.5%). The plant extracts shortlisted for pathogen inhibition have potential to be developed as potent fungicides in organic farming.

Item Type:	Article
Uncontrolled Keywords:	Azadirachta indica, Polyalthia longifolia, Alternaria, Capsicum annuum, Lycopersicon esculentum, Alternaria solani, Citrus aurantiifolia, Crotalaria, Datura metel, Muntingia calabura, Oxalis, Oxalis latifolia, Solanum tuberosum
Subjects:	B Life Science > Botany
Divisions:	Department of > Botany
Depositing User:	Arshiya Kousar Library Assistant
Date Deposited:	26 Nov 2019 06:14
Last Modified:	16 Jul 2022 10:01
URI:	http://eprints.uni-mysore.ac.in/id/eprint/9547

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