INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/4790 |
Resumo: | This study assessed the effect of different irrigation levels and plant densities on maize crops cultivated during the second season in the Western Border region of the State of Rio Grande do Sul. This work was conducted at the Federal Institute of Farroupilha – Alegrete Campus/RS – between January and June 2014. Treatments were arranged in a completely randomized 5 × 4 factorial design, with 3 replicates each. Irrigation of fixed amounts of water that were based on the evapotranspiration of the culture (Etc): 0, 50, 75, 100, and 125% of Etc were applied at 5-day intervals. Four densities of plants were defined (4, 7, 10, and 13 plants m-2). We assessed number of maize ears per plant, number of grains per ear, aboveground dry matter, mass of 100 grains, harvest index, and grain productivity. The number of grains per ear, mass of 100 grains, and grain yield were influenced by irrigation levels. Plant density and water depth influenced the number of grains per ear, the mass of 100 grains, and grain productivity. The highest yield of winter maize grain was achieved with a combination of 13 plants per m-2 and an irrigation level of 100% of Etc. Specific densities of plants maximized the yield of maize at each irrigation level, demonstrating that choice of plant density is a critical variable in the second crop of maize, and significantly influences the components of production. |
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INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZEINFLUÊNCIA DE LÂMINAS DE IRRIGAÇÃO E DENSIDADE DE PLANTAS NO MILHO “SAFRINHA”Zea mays L.. Irrigation management. Yield components.Zea mays L. Manejo de irrigação. Componentes de produção.This study assessed the effect of different irrigation levels and plant densities on maize crops cultivated during the second season in the Western Border region of the State of Rio Grande do Sul. This work was conducted at the Federal Institute of Farroupilha – Alegrete Campus/RS – between January and June 2014. Treatments were arranged in a completely randomized 5 × 4 factorial design, with 3 replicates each. Irrigation of fixed amounts of water that were based on the evapotranspiration of the culture (Etc): 0, 50, 75, 100, and 125% of Etc were applied at 5-day intervals. Four densities of plants were defined (4, 7, 10, and 13 plants m-2). We assessed number of maize ears per plant, number of grains per ear, aboveground dry matter, mass of 100 grains, harvest index, and grain productivity. The number of grains per ear, mass of 100 grains, and grain yield were influenced by irrigation levels. Plant density and water depth influenced the number of grains per ear, the mass of 100 grains, and grain productivity. The highest yield of winter maize grain was achieved with a combination of 13 plants per m-2 and an irrigation level of 100% of Etc. Specific densities of plants maximized the yield of maize at each irrigation level, demonstrating that choice of plant density is a critical variable in the second crop of maize, and significantly influences the components of production.O objetivo do presente estudo foi avaliar o efeito de diferentes lâminas de irrigação e densidades de plantas sobre o milho safrinha na região Fronteira Oeste do Estado do RS. O trabalho foi conduzido no Instituto Federal Farroupilha – Campus de Alegrete/RS, no período de janeiro a junho de 2014. Os tratamentos foram dispostos em um delineamento Inteiramente casualizado, fatorial 5 x 4 com 3 repetições. As irrigações foram realizadas em turno de rega fixo de cinco dias e a lâmina aplicada, com base na evapotranspiração da cultura (Etc). Os tratamentos foram 0, 50, 75, 100 e 125% da Etc. Foi definido quatro densidades de plantas (4; 7; 10 e 13 plantas m-2). Avaliou-se: número de espigas por planta, número de grãos por espiga, matéria seca da parte aérea, massa de cem grãos, índice de colheita e produtividade de grãos. O número de grãos por espiga, a massa de cem grãos e a produtividade de grãos são influenciados pelas lâminas de irrigação. A densidade de plantas e a lâmina de irrigação influenciaram no número de grãos por espiga, massa seca da parte aérea e produtividade de grãos. A maior produtividade de grãos do milho safrinha foi encontrada na combinação de 13 plantas m-2 com a lâmina de irrigação de 100% da Etc. Existe uma densidade de plantas que maximiza o rendimento de grãos de milho para cada lâmina de irrigação adotada. A escolha da densidade de plantas é uma variável decisiva no cultivo de milho safrinha, influenciando significativamente nos componentes de produção.Universidade Federal Rural do Semi-Árido2016-07-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/479010.1590/1983-21252016v29n317rcREVISTA CAATINGA; Vol. 29 No. 3 (2016); 665-676Revista Caatinga; v. 29 n. 3 (2016); 665-6761983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/4790/pdf_406Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessBen, Luis Humberto BahúPeiter, Marcia XavierRobaina, Adroaldo DiasParizi, Ana Rita CostenaroSilva, Gideon Ujacov da2023-07-19T18:24:50Zoai:ojs.periodicos.ufersa.edu.br:article/4790Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:18.946758Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE INFLUÊNCIA DE LÂMINAS DE IRRIGAÇÃO E DENSIDADE DE PLANTAS NO MILHO “SAFRINHA” |
title |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE |
spellingShingle |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE Ben, Luis Humberto Bahú Zea mays L.. Irrigation management. Yield components. Zea mays L. Manejo de irrigação. Componentes de produção. |
title_short |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE |
title_full |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE |
title_fullStr |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE |
title_full_unstemmed |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE |
title_sort |
INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON” MAIZE |
author |
Ben, Luis Humberto Bahú |
author_facet |
Ben, Luis Humberto Bahú Peiter, Marcia Xavier Robaina, Adroaldo Dias Parizi, Ana Rita Costenaro Silva, Gideon Ujacov da |
author_role |
author |
author2 |
Peiter, Marcia Xavier Robaina, Adroaldo Dias Parizi, Ana Rita Costenaro Silva, Gideon Ujacov da |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Ben, Luis Humberto Bahú Peiter, Marcia Xavier Robaina, Adroaldo Dias Parizi, Ana Rita Costenaro Silva, Gideon Ujacov da |
dc.subject.por.fl_str_mv |
Zea mays L.. Irrigation management. Yield components. Zea mays L. Manejo de irrigação. Componentes de produção. |
topic |
Zea mays L.. Irrigation management. Yield components. Zea mays L. Manejo de irrigação. Componentes de produção. |
description |
This study assessed the effect of different irrigation levels and plant densities on maize crops cultivated during the second season in the Western Border region of the State of Rio Grande do Sul. This work was conducted at the Federal Institute of Farroupilha – Alegrete Campus/RS – between January and June 2014. Treatments were arranged in a completely randomized 5 × 4 factorial design, with 3 replicates each. Irrigation of fixed amounts of water that were based on the evapotranspiration of the culture (Etc): 0, 50, 75, 100, and 125% of Etc were applied at 5-day intervals. Four densities of plants were defined (4, 7, 10, and 13 plants m-2). We assessed number of maize ears per plant, number of grains per ear, aboveground dry matter, mass of 100 grains, harvest index, and grain productivity. The number of grains per ear, mass of 100 grains, and grain yield were influenced by irrigation levels. Plant density and water depth influenced the number of grains per ear, the mass of 100 grains, and grain productivity. The highest yield of winter maize grain was achieved with a combination of 13 plants per m-2 and an irrigation level of 100% of Etc. Specific densities of plants maximized the yield of maize at each irrigation level, demonstrating that choice of plant density is a critical variable in the second crop of maize, and significantly influences the components of production. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-07-20 |
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://periodicos.ufersa.edu.br/caatinga/article/view/4790 10.1590/1983-21252016v29n317rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/4790 |
identifier_str_mv |
10.1590/1983-21252016v29n317rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/4790/pdf_406 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 29 No. 3 (2016); 665-676 Revista Caatinga; v. 29 n. 3 (2016); 665-676 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
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1797674025539862528 |