HUMIC ACID ON GERMINATION AND VIGOR OF CORN SEEDS

Authors

  • Lennis Afraire Rodrigues UFMS - Universidade Federal de Mato Grosso do Sul
  • Charline Zaratin Alves UFMS - Universidade Federal de Mato Grosso do Sul
  • Carlos Henrique Queiroz Rego UFMS - Universidade Federal de Mato Grosso do Sul
  • Tiago Roque Benetoli da Silva UEM - Universidade Estadual de Maringá
  • Josué Bispo da Silva UFAC - Universidade Federal do Acre

DOI:

https://doi.org/10.1590/1983-21252017v30n116rc

Keywords:

Organic acids. Biostimulants. Physiological quality. Zea mays L..

Abstract

The development of technologies to increase stand establishment efficiency and seed vigor, as well as to maximize profits, is of fundamental importance for the sustainability of agriculture. Products based on humic substances, such as humic acids, have been recently used in Brazilian agriculture to produce seedlings with high vigor, which positively influences the establishment of the initial stand. Thus, this study aimed to evaluate the effect of treatment of corn seeds with a commercial humic acid-based product, Humykos® (18% of humic acid content), on germination and seedling vigor. The treatments consisted of six doses (0, 100, 200, 300, 400, and 500 mL 100 kg-1 seed) of Humykos®, and the treated seeds were analyzed for germination and vigor (first count, emergence, emergence speed index, length, and dry mass of shoots and roots). Our results show that humic acid promotes greater seedling growth and increased shoot dry mass in corn; in addition, it has a positive influence on the emergence speed index up to a dose 158 mL 100 kg-1 seeds.

Author Biographies

  • Lennis Afraire Rodrigues, UFMS - Universidade Federal de Mato Grosso do Sul
    Aluna de pós-graduação do curso de Agronomia da UFMS
  • Charline Zaratin Alves, UFMS - Universidade Federal de Mato Grosso do Sul
    Docente da área de produção e tecnologia de sementes
  • Carlos Henrique Queiroz Rego, UFMS - Universidade Federal de Mato Grosso do Sul
    Aluno do curso de graduação em Agronomia da UFMS
  • Tiago Roque Benetoli da Silva, UEM - Universidade Estadual de Maringá
    Docente da área de fitotecnia
  • Josué Bispo da Silva, UFAC - Universidade Federal do Acre
    Docente da área de fisiologia de sementes

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Published

02-12-2016

Issue

Section

Agronomy