Quality of corn seed industrial seed treatment (IST) and on-farm treatment (OFT) in Brazilian agribusiness
Seed treatment is important for protecting seed and seedling from pests and/or pathogens. Seed treatment can be performed generally in two ways: industrial seed treatment (IST), performed by seed companies, or on-farm treatment (OFT). These treatment technologies will affect the final quality of the...
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Published in: | Journal of seed science Vol. 45 |
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Main Authors: | , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
ABRATES - Associação Brasileira de Tecnologia de Sementes
01-01-2023
Associação Brasileira de Tecnologia de Sementes |
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Online Access: | Get full text |
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Summary: | Seed treatment is important for protecting seed and seedling from pests and/or pathogens. Seed treatment can be performed generally in two ways: industrial seed treatment (IST), performed by seed companies, or on-farm treatment (OFT). These treatment technologies will affect the final quality of the process. Therefore, the objective of this study was to characterize the seed quality profile of ISTs and OFTs in Brazilian agribusiness in terms of functional quality and dose application effectiveness (DAE). Seed samples treated by both processes were collected in 6 producing states of Brazil, Mato Grosso, Goiás, Paraná, Minas Gerais, São Paulo, and Santa Catarina. To evaluate the functional quality of the treatments, the coating percentage was determined by high-resolution image analysis with GroundEye® equipment, and the insecticide active ingredient DAE amount was determined with high-performance liquid chromatography (HPLC). Image analysis proved to be a promising technique to evaluate seed coating, in addition, samples treated with “on farm” technology had greater variation and heterogeneity in coating and active ingredient dose, while samples treated industrially showed greater homogeneity, uniformity, effectiveness of applied products. There was a strong positive correlation between coating with phytosanitary products and DAE in treated corn seeds, important parameters in the evaluation of the quality of the treatment.
Resumo: O tratamento de semente é importante para a proteção de sementes e plântulas contra pragas e ou patógenos. Podendo ser realizado basicamente via tratamento de sementes industrial (TSI) ou na própria fazenda “on farm” (TOF). Essas tecnologias de tratamento vão afetar a qualidade final do processo. Assim, o objetivo no trabalho foi realizar a caracterização do perfil da qualidade do TSI e TOF no agronegócio brasileiro, quanto à qualidade funcional e eficácia de aplicação de dose (EAD). Sementes tratadas em ambos os processos foram coletadas em 6 estados produtores do Brasil e avaliadas quanto à porcentagem de recobrimento por meio da análise de imagens com o equipamento GroundEye® e EAD do ingrediente ativo inseticida por meio de Cromatografia Líquida de Alta Eficiência (CLAE). A análise de imagem mostrou-se uma técnica promissora para avaliar o recobrimento de sementes, além disso, as amostras tratadas com a tecnologia “on farm” apresentaram maior variação e heterogeneidade do revestimento e da dose do ingrediente ativo, enquanto as amostras tratadas industrialmente houve maior homogeneidade, uniformidade, assertividade dos produtos aplicados. Existe forte correlação positiva entre recobrimento por produto fitossanitário e EAD em sementes tratadas de milho, parâmetros importantes na avaliação da qualidade do tratamento. |
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ISSN: | 2317-1537 2317-1545 2317-1545 |
DOI: | 10.1590/2317-1545v45268856 |