Action of trichodermaspp. in the control of fungi that cause diseases in plants of the cerrado of tocantins Biome, Northern Brazil
International Journal of Development Research
Action of trichodermaspp. in the control of fungi that cause diseases in plants of the cerrado of tocantins Biome, Northern Brazil
Received 20th March, 2018; Received in revised form 18th April, 2018; Accepted 21st May, 2018; Published online 28th June, 2018
Copyright © 2018, Aloisio Freitas Chagas Junior et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fungi of the genus Trichoderma are able to act as agents to control the growth of pathogenic fungi that cause diseases in several cultivated plants. Therefore, this work aimed to select and test Trichodermaisolates capable of inhibiting, in vitro, the mycelial growth of soil pathogens. 50 isolates of Trichoderma spp. were tested against the pathogenic fungi Sclerotiumrolfsii, Rhizoctoniasolani and Fusariumsp. The in vitro culture pairing technique was used, with scores on grades according to the criteria proposed by Bell and percentage of colonization. In the percentage of inhibition of the growth of the pathogen, 23 isolates with more than 60% inhibition were more efficient for S. rolfssi, five with 100% inhibition for R. solani and 32 isolates with more than 70% for Fusariumsp.
