In vitro Antifungal Activity of Various Local Plant Extracts in the Control of Phoma sorghina (Sacc.) Boerema et al. and Colletotrichum graminicola (Ces.) Wilson, as Sorghum Seed Mold Pathogen in Burkina Faso

Bonzi, S. and Somda, I. and Zida, E.P. and Sérémé, P. (2012) In vitro Antifungal Activity of Various Local Plant Extracts in the Control of Phoma sorghina (Sacc.) Boerema et al. and Colletotrichum graminicola (Ces.) Wilson, as Sorghum Seed Mold Pathogen in Burkina Faso. Tropicultura , 30 (2). pp. 103-106.

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Abstract

The use of phytosanitary products is becoming increasingly restricted, due to their high cost, as well as the unavailability of certain products on the local market and their damaging effects on the environment and health. These different reasons motivated the search for alternative solutions to the use of synthetic pesticides. On this basis, we took on the task of evaluating the anti-fungal effectiveness of aqueous plant extracts from Balanites aegyptiaca, Cymbopogon citratus, Cassia occidentalis and Portulaca oleracea. These extracts, at 30% concentration, were obtained after different maceration periods (6, 12, 24 and 48 hours) and tested in vitro against Colletotrichum graminicola and Phoma sorghina. The effect of the extracts on the mycelium growth of various fungi, when evaluated 10 days after incubation (DAI), shows that extracts of C. citratus, B. aegyptiaca, P. oleracea and C. occidentalis inhibit the growth of C. graminicola by 100%, 65%, 43% and 38%, respectively. The extract of C. citratus prevents the development of C. graminicola, regardless of the maceration period. This extract produces a greater inhibitory effect than the fungicide Calthio DS (20% Lindane and 25% Thirame). Compared to P. sorghina, inhibition percentages of 100, 72 and 16 were recorded for extracts of C. citratus, P. oleracea and C. occidentalis. However, extracts of C. citratus (macerated for 24 and 48 hours) and extract of P. oleracea (macerated for 48 hours) were more effective than the other extracts.

Item Type: Article
Uncontrolled Keywords: Aqueous extract- Colletotrichum graminicola- Phoma sorghina- Mycelium growth- Inhibition percentage- Burkina Faso
Author Affiliation: Institute of Rural Development, 01 BP. 1091, Bobo-Dioulasso 01, Burkina Faso, Institute of the Environment and Agricultural Research, CRREAF de Kamboinsé, BP. 476, Ouagadougou, Burkina Faso
Subjects: Plant Protection
Crop Improvement
Divisions: Sorghum
Depositing User: Mr. SanatKumar Behera
Date Deposited: 28 Nov 2012 03:49
Last Modified: 28 Nov 2012 03:49
URI: http://eprints.icrisat.ac.in/id/eprint/8906

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