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Sanity and control of fungi in forage grass seeds

Authors

  • Gabriella Rayssa Antunes da Silva Oliveira Universidade Federal do Tocantins
  • Gil Rodrigues dos Santos Federal University of Tocantins

DOI:

https://doi.org/10.20873/2025_out_17691

Abstract

Sanitary analysis of forage grass seeds is not necessary when they are destined for the domestic market, only those destined for export. The association of pathogens with seeds represents negative impacts, such as, for example, low germination. Therefore, the objective of the work was to evaluate the health quality of the seeds of Bachiaria sp. and Panicum sp., as well as the use of essential oils to control the mycelial growth of potentially pathogenic fungi to grasses, the transmission of fungi via plant seed and the pathogenicity to these forage grasses. Essential oils of Noni and Rosemary pepper were tested to control the mycelial growth of Exserohilum sp. in concentrations: 0; 0.1; 0.5; 1.0; 1.5; and 2.0%. In the transmission and pathogenicity tests, isolated fungi were used in the health test. The genus with the highest incidence in Panicum sp. was Penicilium sp., in Brachiaria sp. the genus Rhizopus sp. For both essential oils the concentration of 2.0 was the most efficient. They were transmitted to Brachiaria cv. Marandu the genera Exserohilum sp.; Curvularia sp.; Myrothecium sp.; and Bipolaris sp., among which, only Myrothecium sp. has not been transmitted to Panicum cv. Masai. Only Curvularia sp. was pathogenic to Panicum sp.

Published

2025-10-20

Versions

How to Cite

Antunes da Silva Oliveira, G. R., & Rodrigues dos Santos, G. (2025). Sanity and control of fungi in forage grass seeds. DESAFIOS - Revista Interdisciplinar Da Universidade Federal Do Tocantins, 12(6), 215–229. https://doi.org/10.20873/2025_out_17691

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