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

Detalhes bibliográficos
Autor(a) principal: Loureiro, Danilo Roberto
Data de Publicação: 2012
Outros Autores: Fernandes, Haroldo Carlos, Teixeira, Mauri Martins, Leite, Daniel Mariano, Fernandes, Lara Santana
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7276
Resumo: 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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spelling Losses in germination mechanized harvest of corn grown in small spacing and conventionalPerdas germinativas na colheita mecanizada do milho cultivado em espaçamentos reduzido e convencionalGerminationAgricultural machineryHarvestZea mays L.Ciências AgráriasGerminaçãoMáquinas agrícolasColheitaZea mays L.Ciências AgráriasThe 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.Objetivou-se com este trabalho, avaliar as perdas no potencial germinativo de sementes em função da colheita mecanizada do milho cultivado com espaçamentos entre linhas de semeadura convencional (0,90 m) e reduzido (0,45 m), submetida a diferentes velocidades de deslocamento da colhedora e aberturas do sistema debulhador. O cultivar de milho utilizado foi o DKB 747. O delineamento experimental foi o de blocos casualizados em esquema fatorial 2 x 3 x 3 com três repetições. Os tratamentos foram constituídos por dois espaçamentos entre linhas da cultura (0,45 e 0,90 m), três velocidades de deslocamento da colhedora (1,8; 3,5 e 4,1 km h-1) e três aberturas entre o côncavo e o cilindro debulhador (25, 30 e 35 mm). A germinação média das sementes debulhadas manualmente, cultivadas com espaçamento entre linhas de semeadura de 0,45 e 0,90 m, foi de 78,45 e 74,12%, respectivamente. A germinação das sementes de milho não é influenciada pelos diferentes espaçamentos entre linhas de semeaduras. A menor abertura entre o cilindro debulhador e o côncavo resulta nos menores valores de germinação. A velocidade de deslocamento da colhedora de 1,8 km h-1 utilizada no espaçamento entre linhas de semeadura de 0,9 m resulta em menores valores de germinação das sementes de milho.UEL2012-08-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/727610.5433/1679-0359.2012v33n4p1251Semina: Ciências Agrárias; Vol. 33 No. 4 (2012); 1251-1358Semina: Ciências Agrárias; v. 33 n. 4 (2012); 1251-13581679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7276/11234Loureiro, Danilo RobertoFernandes, Haroldo CarlosTeixeira, Mauri MartinsLeite, Daniel MarianoFernandes, Lara Santanainfo:eu-repo/semantics/openAccess2015-11-19T18:37:26Zoai:ojs.pkp.sfu.ca:article/7276Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:26Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Losses in germination mechanized harvest of corn grown in small spacing and conventional
Perdas germinativas na colheita mecanizada do milho cultivado em espaçamentos reduzido e convencional
title Losses in germination mechanized harvest of corn grown in small spacing and conventional
spellingShingle Losses in germination mechanized harvest of corn grown in small spacing and conventional
Loureiro, Danilo Roberto
Germination
Agricultural machinery
Harvest
Zea mays L.
Ciências Agrárias
Germinação
Máquinas agrícolas
Colheita
Zea mays L.
Ciências Agrárias
title_short Losses in germination mechanized harvest of corn grown in small spacing and conventional
title_full Losses in germination mechanized harvest of corn grown in small spacing and conventional
title_fullStr Losses in germination mechanized harvest of corn grown in small spacing and conventional
title_full_unstemmed Losses in germination mechanized harvest of corn grown in small spacing and conventional
title_sort Losses in germination mechanized harvest of corn grown in small spacing and conventional
author Loureiro, Danilo Roberto
author_facet Loureiro, Danilo Roberto
Fernandes, Haroldo Carlos
Teixeira, Mauri Martins
Leite, Daniel Mariano
Fernandes, Lara Santana
author_role author
author2 Fernandes, Haroldo Carlos
Teixeira, Mauri Martins
Leite, Daniel Mariano
Fernandes, Lara Santana
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Loureiro, Danilo Roberto
Fernandes, Haroldo Carlos
Teixeira, Mauri Martins
Leite, Daniel Mariano
Fernandes, Lara Santana
dc.subject.por.fl_str_mv Germination
Agricultural machinery
Harvest
Zea mays L.
Ciências Agrárias
Germinação
Máquinas agrícolas
Colheita
Zea mays L.
Ciências Agrárias
topic Germination
Agricultural machinery
Harvest
Zea mays L.
Ciências Agrárias
Germinação
Máquinas agrícolas
Colheita
Zea mays L.
Ciências Agrárias
description 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.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7276
10.5433/1679-0359.2012v33n4p1251
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7276
identifier_str_mv 10.5433/1679-0359.2012v33n4p1251
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7276/11234
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 33 No. 4 (2012); 1251-1358
Semina: Ciências Agrárias; v. 33 n. 4 (2012); 1251-1358
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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