Row spacing and seed physiological quality of Crotalaria species

Authors

  • Bruna Neves Pereira da Silva
  • Tathiana Elisa Masetto
  • Rodrigo Arroyo Garcia
  • Mariana Zampar Toledo

Abstract

Crotalaria crops have important uses, such as in green manuring, nematode control, biological nitrogen fixation and sugarcane reform in Savanna areas. Due to its strategic importance, knowledge about crotalaria seed production technology is a relevant factor to ensure the availability of high physiological quality seeds. This study aimed to assess the effect of two row spacings (20 and 40 cm) on the germination and vigor of Crotalaria ochroleuca and Crotalaria spectabilis seeds produced in two crop seasons (2018 and 2019). The experimental design was randomized blocks, with four replications, in a 2 x 2 factorial scheme (spacing x crop season), for each species. The climatic conditions during seed production significantly influenced the physiological quality of the crotalaria seeds. The 2018 harvest, with more abundant rainfall and milder temperatures during flowering, provided more vigorous seeds for both species. The 20 cm spacing was more efficient to produce C. ochroleuca seeds with high physiological performance. Notwithstanding, C. spectabilis seeds showed a higher physiological quality when produced under 40 cm spacing than when produced under denser cultivation.

KEYWORDS: Crotalaria ochroleuca, Crotalaria spectabilis, seed vigor.

Downloads

Download data is not yet available.

Downloads

Published

2022-09-13

How to Cite

SILVA, B. N. P. da; MASETTO, T. E.; GARCIA, R. A. .; TOLEDO, M. Z. . Row spacing and seed physiological quality of Crotalaria species. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 52, p. e72674, 2022. Disponível em: https://revistas.ufg.br/pat/article/view/72674. Acesso em: 23 nov. 2024.

Issue

Vol. 52 (2022)

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.