Row spacing, plant density, sowing and harvest times for sweet sorghum

Authors

  • Josefa Maria Francieli da Silva UNIVERSIDADE FEDERAL DO CEARÁ
  • Alek Sandro Dutra UNIVERSIDADE FEDERAL DO CEARÁ
  • Felipe Thomaz da Camara UNIVERSIDADE FEDERAL DO CARIRI
  • Antônio Alves Pinto UNIVERSIDADE FEDERAL DO CARIRI
  • Francisco Edson da Silva UNIVERSIDADE FEDERAL DO CARIRI

Keywords:

Sorghum bicolor, plant spatial arrangement, planting density.

Abstract

Along with sugarcane, which is the main crop used for ethanol production, the sweet sorghum is a promising agronomic and industrial alternative for cultivation in water-stress regions. This study aimed at assessing the row spacing (0.70 m, 0.80 m and 0.90 m) and plant density (80,000 plants ha-1; 100,000 plants ha-1; 120,000 plants ha-1; and 140,000 plants ha-1) for the BRS 511 sorghum cultivar, combined with sowing and harvest times. A split-plot experimental design, in complete randomized blocks, with four replications, was used. The analyzed variables were plant height, stem diameter, shoot fresh and dry matter, broth volume and total soluble solids (ºBrix). The results showed isolated effects of plant density on plant height and stem diameter, as well as effects of row spacing on total fresh mass and broth volume. The most efficient productive effect for the sweet sorghum was observed in populations lower than 120,000 plants ha-1 and row spacing inferior to 0.80 m, associated with harvest at 120 days after sowing.

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Author Biographies

Josefa Maria Francieli da Silva, UNIVERSIDADE FEDERAL DO CEARÁ

MESTRE EM AGRONOMIA/FITOTECNIA

ESPECIALISTA EM EDUCAÇÃO AMBIENTAL

Alek Sandro Dutra, UNIVERSIDADE FEDERAL DO CEARÁ

PROFESSOR DA POS-GRADUAÇÃO EM AGRONOMIA/FITOTECNIA DA UNIVERSIDADE FEDERAL DO CEARÁ

Felipe Thomaz da Camara, UNIVERSIDADE FEDERAL DO CARIRI

PROFESSOR DO AGRONOMIA DA UNIVERSIDADE FEDERAL DO CARIRI

Antônio Alves Pinto, UNIVERSIDADE FEDERAL DO CARIRI

ESTUDANTE DE AGRONOMIA DA UNIVERSIDADE FEDERAL DO CARIRI

Francisco Edson da Silva, UNIVERSIDADE FEDERAL DO CARIRI

ESTUDANTE DE AGRONOMIA DA UNIVERSIDADE FEDERAL DO CARIRI

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Published

2017-12-19

How to Cite

DA SILVA, J. M. F.; DUTRA, A. S.; DA CAMARA, F. T.; PINTO, A. A.; DA SILVA, F. E. Row spacing, plant density, sowing and harvest times for sweet sorghum. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 47, n. 4, p. 408–415, 2017. Disponível em: https://revistas.ufg.br/pat/article/view/48585. Acesso em: 30 jun. 2024.

Issue

v. 47, n. 4, Oct./Dec. 2017

Section

Research Article

License

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