Losses in germination mechanized harvest of corn grown in small spacing and conventional

Authors

  • Danilo Roberto Loureiro Universidade Federal de Viçosa
  • Haroldo Carlos Fernandes Universidade Federal de Viçosa
  • Mauri Martins Teixeira Universidade Federal de Viçosa
  • Daniel Mariano Leite Universidade Federal de Viçosa
  • Lara Santana Fernandes Universidade Federal de Viçosa

DOI:

https://doi.org/10.5433/1679-0359.2012v33n4p1251

Keywords:

Germination, Agricultural machinery, Harvest, Zea mays L.

Abstract

The objective of this study was to evaluate the germination potential losses due to the mechanized harvest of corn grown with row spacing of conventional seeding (0.90 m) and low (0.45m) under different travel speeds of harvester thresher and openings in the system. The cultivar used was the DKB 747. The experimental design was randomized blocks in scheme 2 x 3 x 3 with three replications. The treatments were two row spacing of culture (0.45 and 0.90 m), three harvester travel speeds (1.8, 3.5 and 4.1km h-1) and three openings between the concave and threshing drum (25, 30 and 35 mm). The average germination of threshed manually planted with planting spacing of 0.45 and 0.90 m, was 78.45 and 74.12% respectively. The germination of corn seeds is not influenced by different row spacing plantings. The smallest gap between the cylinder and concave thresher results in lower levels of germination. The speed of the harvester 1.8 km h-1 used in planting spacing of 0.9 m resulting in lower germination of corn.

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Author Biographies

Danilo Roberto Loureiro, Universidade Federal de Viçosa

Engº Agrícola e Ambiental, Doutorando em Engenharia Agrícola, Deptº. de Engenharia Agrícola, Universidade Federal de Viçosa, UFV, Viçosa, MG.

Haroldo Carlos Fernandes, Universidade Federal de Viçosa

Engº Agrícola, Prof. Associado, Deptº. de Engenharia Agrícola, UFV, Viçosa, MG.

Mauri Martins Teixeira, Universidade Federal de Viçosa

Engº Agrº, Prof. Associado, Deptº. de Engenharia Agrícola, UFV, Viçosa, MG.

Daniel Mariano Leite, Universidade Federal de Viçosa

Lic. em Ciências Agrícolas, Doutorando em Engenharia Agrícola, Deptº. de Engenharia Agrícola, UFV, Viçosa, MG.

Lara Santana Fernandes, Universidade Federal de Viçosa

Engª de Alimentos, Mestranda em Engenharia Agrícola, Deptº. de Engenharia Agrícola, UFV, Viçosa, MG.

Published

2012-08-28

How to Cite

Loureiro, D. R., Fernandes, H. C., Teixeira, M. M., Leite, D. M., & Fernandes, L. S. (2012). Losses in germination mechanized harvest of corn grown in small spacing and conventional. Semina: Ciências Agrárias, 33(4), 1251–1358. https://doi.org/10.5433/1679-0359.2012v33n4p1251

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Articles