African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6169

Full Length Research Paper

Inoculation with entomopathogenic fungi reduces seed contamination, improves seed germination and growth of chilli seedlings

Emmanuel Ortiz Espinoza
  • Emmanuel Ortiz Espinoza
  • Faculty of Agronomy and Veterinary Medicine, Autonomous University of San Luis Potosí, Highway San Luis Potosí, Matehuala, Km 14.5, P. O. Box 78321. Soledad de Graciano Sánchez, S.L.P., México.
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Fabiola Villegas Rodríguez
  • Fabiola Villegas Rodríguez
  • Faculty of Agronomy and Veterinary Medicine, Autonomous University of San Luis Potosí, Highway San Luis Potosí, Matehuala, Km 14.5, P. O. Box 78321. Soledad de Graciano Sánchez, S.L.P., México.
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Pablo Delgado Sánchez
  • Pablo Delgado Sánchez
  • Faculty of Agronomy and Veterinary Medicine, Autonomous University of San Luis Potosí, Highway San Luis Potosí, Matehuala, Km 14.5, P. O. Box 78321. Soledad de Graciano Sánchez, S.L.P., México.
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Luisa Eugenia del Socorro Hernández Arteaga
  • Luisa Eugenia del Socorro Hernández Arteaga
  • Faculty of Agronomy and Veterinary Medicine, Autonomous University of San Luis Potosí, Highway San Luis Potosí, Matehuala, Km 14.5, P. O. Box 78321. Soledad de Graciano Sánchez, S.L.P., México.
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José Marín Sánchez
  • José Marín Sánchez
  • Faculty of Agronomy and Veterinary Medicine, Autonomous University of San Luis Potosí, Highway San Luis Potosí, Matehuala, Km 14.5, P. O. Box 78321. Soledad de Graciano Sánchez, S.L.P., México.
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Hugo Magdaleno Ramírez Tobías
  • Hugo Magdaleno Ramírez Tobías
  • Faculty of Agronomy and Veterinary Medicine, Autonomous University of San Luis Potosí, Highway San Luis Potosí, Matehuala, Km 14.5, P. O. Box 78321. Soledad de Graciano Sánchez, S.L.P., México.
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and Francisco Villarreal Guerrero
  • and Francisco Villarreal Guerrero
  • Faculty of Zootechnics and Ecology, Autonomous University of Chihuahua, Chihuahua 31110, México.
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  •  Received: 27 March 2019
  •  Accepted: 16 May 2019
  •  Published: 30 September 2019

Abstract

The use of entomopathogenic fungi is a common practice for integrated pest management. It has recently been observed that they also play a role as growth promoters and plant disease antagonism. In this study, the effect of inoculation with two strains of Beauveria bassiana [(Bals.-Criv.) Vuill. 1912] (strains BB42 and BB09) and two strains of Metarhizium anisopliae [(Metschn.) Sorokīn 1883] (strains MA25 and MA28) on the percentage of seed germination and development of chilli seedling (Capsicum annuum L.) was evaluated. In the in vitro test, we did not find significant differences between percentages of germination, but in the in vivo test, differences were significant, where sMA28 and BB09 strains obtained the highest germination percentage (85%). It was also found that seedlings inoculated with entomopathogenic fungi generate longer roots and produced more biomass in both tests, as well as lower percentages of contaminated seeds in in vitro and in vivo tests. All strains evaluated had inhibitory effects against two seed borne fungi isolated from contaminated seed, belong to genus Alternaria sp.

Key words: Germination, antagonims, entomopathogenic fungi.