In vitro sensitivity of antagonistic Trichoderma atroviride to herbicides
Braz. arch. biol. technol
;
57(2): 238-243, Mar.-Apr. 2014. tab
Article
in English
| LILACS
| ID: lil-705748
ABSTRACT
Trichoderma atroviride was tested in vitro for its sensitivity to different herbicides. The dosages tested were recommended dosage (RD), half dosage (½RD), and double dosage (2RD). Germination, colony-forming units (CFU), radial growth, and spore production were evaluated. Carfentrazone-ethyl and sulfentrazone inhibited the germination at RD and 2RD. A reduction in the CFU was observed for glufosinate-ammonium, atrazine, carfentrazone-ethyl, diuron + paraquat dichloride, imazapyr, oxyfluorfen, and sulfentrazone at each of the tested dosages. Radial growth was influenced by ametryn, atrazine, carfentrazone-ethyl, oxyfluorfen, and sulfentrazone herbicides, with an 80% reduction of the colonial area. Spore production was affected by carfentrazone-ethyl, oxyfluorfen, and sulfentrazone with colonial area reductions of over 70%. It was concluded that 2,4 D, clomazone, and imazapyr herbicides showed the least toxicity to T. atroviride and should be used in the crops where the fungus has been applied for phytopathogen control.
Full text:
Available
Index:
LILACS (Americas)
Type of study:
Diagnostic study
Language:
English
Journal:
Braz. arch. biol. technol
Journal subject:
Biology
Year:
2014
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Instituto Agronômico do Paraná/BR
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