In vitro characterization of Trichoderma spp., and mathematical model of its antagonism in the presence of Moniliophthora perniciosa

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Johan Párraga Vélez
Álvaro Cañadas López
Piero Fajardo Navarrete
Diana Rade Loor
Joffre Andrade Candell

Abstract

To optimization of practical use of the biological control agent is fundamental the understanding of how they were affected by the physics conditions, the survivor capacities, growths and reproduction systems. Trichoderma has been described as an efficient biological control agent. The aim of this research have been the in vitro characterization, determination of the growth of native strains of Trichoderma spp., from Ecuador and the esta-blishment of the antagonistic capacity of this isolates against M. perniciosa through the application of mathematical models. The research experiment was carried out in the Portoviejo Research Station (EEP) of Agricultural and Cattle National Research Institute (INIAP). Consequently, 12 isolates of Trichoderma spp., were identified based on charac-teristics of aroma, color and morphology. The isolated A1, which showed a strong smell of coconut, presented initial high growth ranges in pure culture and a flat morphology; was the most effective in the inhibition of M. perniciosadevelopment. The mathematical models determination describing the mycelial growth of M. perniciosa to the presen-ce of antagonistic isolates of Trichoderma spp., could allow a rapid characterization of Trichoderma spp., isolates in the praxis.

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1.
Párraga Vélez J, Cañadas López Álvaro, Fajardo Navarrete P, Rade Loor D, Andrade Candell J. In vitro characterization of Trichoderma spp., and mathematical model of its antagonism in the presence of Moniliophthora perniciosa. REMCB [Internet]. 2017May30 [cited 2024Jul.3];38(1):25-4. Available from: https://remcb-puce.edu.ec/remcb/article/view/18
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Artículos Científicos

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