Work

Antagonistic microorganisms and nitrogen fertilization in control of tomato southern blight

Year: 2021

Type: article

Abstract: The present study assessed the efficacy of formulated biocontrol agents and nitrogen fertilization on southern blight control. Antagonism test in vitro was performed to assess the inhibitory activity of Bacillus methylotrophicus and Trichoderma asperellum against the growth of Sclerotium rolfsii. Tomato seedlings were transplanted into the substrate added with ammonium nitrate doses and inoculated with the formulated biocontrol agents Ônix (B. methylotrophicus) or Quality (T. asperellum). Subsequently, seedlings were inoculated with S. rolfsii. Plant mortality, shoot and root weight were assessed 11 days after the last inoculation. Agents had effective inhibitory activity against S. rolfsii; thus, they could reduce southern blight severity when combined with ammonium nitrate. However, plant mortality was not reduced by them.

Source: Arquivos do Instituto Biológico

DOI: 10.1590/1808-1657000502019

Authors: Neder Henrique Martinez Blanco, Danilo Ferreira Ramirez Barbosa, Felipe André Sganzerla Graichen

Institution: Universidade Estadual de Mato Grosso do Sul

Language: English

Topic: Plant Disease Management Techniques

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $152