Biocontrol of Damping off and promotion of vegetative growth in plants of Capsicum chinense (Jacq) with Trichoderma spp.

Authors

  • Edgar Javier Larios Larios Facultad de Ciencias Biológicas y Agropecuarias-Universidad de Colima
  • José de Jesús Wilmer Valdovinos Nava Facultad de Ciencias Biológicas y Agropecuarias-Universidad de Colima
  • Wilberth Chan Cupul Facultad de Ciencias Biológicas y Agropecuarias-Universidad de Colima
  • Felipe Alejandro García López Facultad de Ciencias Biológicas y Agropecuarias-Universidad de Colima
  • Gilberto Manzo Sánchez Facultad de Ciencias Biológicas y Agropecuarias-Universidad de Colima
  • Marco Tulio Buenrostro Nava Facultad de Ciencias Biológicas y Agropecuarias-Universidad de Colima

DOI:

https://doi.org/10.29312/remexca.v10i3.332

Keywords:

biological fungicide, chlorophyll index, habanero pepper, incidence

Abstract

The objective of the study was to determine the effectiveness of Trichoderma spp. in the reduction of the incidence of Damping off and promotion of vegetative growth of Capsicum chinense (Jacq.) var. ‘Chichen Itza’. The foliar application was evaluated, through a complete randomized design, of two native strains of Trichoderma sp. (SP6 and Clombta), the co-application of both, a commercial product (Tri-HB®: Trichoderma harzianum and Bacillus subtilis) and a chemical fungicide (Captan®). During the study period, plants treated with Trichoderma sp. Clombta and with the co-inoculation of Trichoderma sp. Clombta + Trichoderma sp. SP6 showed no symptoms of Damping off. In contrast, plants treated with Captan® and Tri-HB® showed the highest cumulative incidence percentages with 5 and 4.5%, respectively. Also, at 28 days after germination, plants treated with Trichoderma sp. Clombta had a higher height (11 cm), stem diameter (2.6 mm), aerial biomass (fresh= 0.8 g plant-1 and dry= 0.13 g plant-1) and root volume (fresh= 0.13 g plant-1 and dry= 0.04 g plant-1), in comparison to the rest of the treatments evaluated. For the formation of leaves (9.1 leaves plant-1), leaf area (10.2 cm2) and chlorophyll index (Clombta= 209.9) the application of Trichoderma sp. Clombta stood out again with the highest values (p< 0.05), with respect to the applications of Captan® and Tri-HB®. According to the results obtained, it was determined that the strain of Trichoderma sp. Clombta at a concentration of 1x1013 conidia mL-1 was effective for the management of Damping off and promotion of vegetative growth of C. chinense var. ‘Chichen Itza’.

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Vol. 10 Núm. 3

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Published

2019-05-13

How to Cite

Larios Larios, Edgar Javier, José de Jesús Wilmer Valdovinos Nava, Wilberth Chan Cupul, Felipe Alejandro García López, Gilberto Manzo Sánchez, and Marco Tulio Buenrostro Nava. 2019. “Biocontrol of Damping off and Promotion of Vegetative Growth in Plants of Capsicum Chinense (Jacq) With Trichoderma Spp”. Revista Mexicana De Ciencias Agrícolas 10 (3). México, ME:471-83. https://doi.org/10.29312/remexca.v10i3.332.

Issue

Vol. 10 No. 3 (2019)

Section

Articles

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