EXPRESSION OF SEED VIGOR AND INITIAL GROWTH OF RED CLOVER UNDER FUNGICIDE INFLUENCE

  • Carolina Cipriano Pinto Universidade Federal de Pelotas
  • Lucian Alex dos Santos Universidade Federal de Pelotas
  • Eduardo Gonçalves Borges Universidade Federal de Pelotas
  • Carina Oliveira e Oliveira Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz USP/ESALQ. Departamento de Fitotecnia e área Sementes.
  • Carlos Eduardo da Silva Pedroso Universidade Federal de Pelotas
  • Tiago Zanatta Aumonde Universidade Federal de Pelotas
Palavras-chave: initial performance, forage, seeds, treatment, Trifolium pratense L.

Resumo

The objective of this study was to evaluate the expression of seeds vigor and physiological performance of initial growth of red clover plants under the influence of fungicide doses of carboxin + thiram. Three lots of seeds were used (high; medium and low vigor) treated with 0; 150; 250 fungicide doses and 350 mL i.a./100 kg of seeds. Germination, first count, emergence and speed index of seedling emergence, length and dry matter of shoot and root, leaf area and shoot/root ratio were evaluated. The experimental design was completely randomized in a factorial 3 x 3 (three lots - high, medium and low vigor x three fungicide doses of carboxin + thiram). Data were submitted to analysis of variance and if significant at 5% probability, adjusted for orthogonal polynomials. According to the data observed in Figures 1, 2 and 3, it was possible to observe that there were significant differences for the means of the variables germination, first germination count, emergency, emergency speed index, shoot length, root length, aerial part dry mass, root dry mass, leaf area, leaf area ratio and shoot and root ratio. The fungicide doses of 150 mL to 350 mL i.a./100 kg of seeds result in greater seedling emergence, higher leaf area ratio and increased shoot/root ratio in plants from lots of medium vigor seeds. The fungicide consisted of carboxin + thiram enhances the expression of seed vigor and physiological performance of plant growth derived from lots of medium vigor seeds.

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Biografia do Autor

Carolina Cipriano Pinto, Universidade Federal de Pelotas
Eng.ª Agrônoma, mestre em Ciência e Tecnologia de Sementes.
Lucian Alex dos Santos, Universidade Federal de Pelotas
Eng. Agrônomo, mestre em Ciência e tecnologia de Sementes, doutorando em Ciência e tecnologia de Sementes.
Eduardo Gonçalves Borges, Universidade Federal de Pelotas
Graduando em Agronomia.
Carina Oliveira e Oliveira, Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz USP/ESALQ. Departamento de Fitotecnia e área Sementes.
Eng.ª Agrônoma, mestre.
Carlos Eduardo da Silva Pedroso, Universidade Federal de Pelotas
Professor Adjunto na Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel - UFPel/FAEM. Departamento de Fitotecnia e área de Ciencia e Tecnología de Sementes..
Tiago Zanatta Aumonde, Universidade Federal de Pelotas
Professor Adjunto na Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel - UFPel/FAEM. Departamento de Fitotecnia e área de Ciencia e Tecnología de Sementes.
Publicado
2019-04-24
Como Citar
Pinto, C., dos Santos, L., Borges, E., e Oliveira, C., Pedroso, C., & Aumonde, T. (2019). EXPRESSION OF SEED VIGOR AND INITIAL GROWTH OF RED CLOVER UNDER FUNGICIDE INFLUENCE. Colloquium Agrariae. ISSN: 1809-8215, 15(2), 84-91. Recuperado de http://revistas.unoeste.br/index.php/ca/article/view/2363