Uptake and exportation of micronutrients by transgenic cultivars

Detalhes bibliográficos
Autor(a) principal: Martinez Gutierrez, Aaron
Data de Publicação: 2018
Outros Autores: Resende, Álvaro Vilela de, Silva, Carine Gregorio Machado, Martins, Denize Carvalho, Simão, Eduardo de Paula, Moreira, Silvino Guimarães, Ferreira, Jose Paulo da Costa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/34832
Resumo: Introducing cultivars of high productive potential with adequate agronomic management has contributed to the increase of maize yield in Brazil. This study aimed to characterize the extraction and exportation of micronutrients by modern maize hybrids grown in no-tillage system in the Cerrado region (Brazilian Savannah) with two fertilization levels. We established two crop environments with differentiated levels of soil fertilization, use of products for seed treatment and leaf fertilization, in which four transgenic hybrids were grown. For each environment, we used an experimental design of randomized blocks with four replicates. There were eleven plant samplings during the crop cycle to quantify dry mass production and Cu, Fe, Mn and Zn extraction. Micronutrient uptake is increased when a hybrid with higher potential for biomass production grows in an environment with greater supply of nutrients. Uptake persists throughout the maize cycle, including during the final stages of the reproductive phase, showing late demand for the crop. On average, after tasseling, about 39, 50, 42, and 49% of the total Cu, Fe, Mn and Zn absorption still occurs, respectively. Total uptake of Cu, Fe, Mn and Zn are, respectively, around 8, 199, 58 and 40 g to produce a tonne of grain, from which 23, 5, 8, and 42% are exported by the harvest. Micronutrient uptake and exportation rates for the studied transgenic hybrids are lower than the ones previously reported in Brazil and in works abroad.
id UFLA_4a8f94f3e6533618696ad03378b53688
oai_identifier_str oai:localhost:1/34832
network_acronym_str UFLA
network_name_str Repositório Institucional da UFLA
repository_id_str
spelling Uptake and exportation of micronutrients by transgenic cultivarsAbsorption marchHigh yieldNutritional requirementsZea mays L.Introducing cultivars of high productive potential with adequate agronomic management has contributed to the increase of maize yield in Brazil. This study aimed to characterize the extraction and exportation of micronutrients by modern maize hybrids grown in no-tillage system in the Cerrado region (Brazilian Savannah) with two fertilization levels. We established two crop environments with differentiated levels of soil fertilization, use of products for seed treatment and leaf fertilization, in which four transgenic hybrids were grown. For each environment, we used an experimental design of randomized blocks with four replicates. There were eleven plant samplings during the crop cycle to quantify dry mass production and Cu, Fe, Mn and Zn extraction. Micronutrient uptake is increased when a hybrid with higher potential for biomass production grows in an environment with greater supply of nutrients. Uptake persists throughout the maize cycle, including during the final stages of the reproductive phase, showing late demand for the crop. On average, after tasseling, about 39, 50, 42, and 49% of the total Cu, Fe, Mn and Zn absorption still occurs, respectively. Total uptake of Cu, Fe, Mn and Zn are, respectively, around 8, 199, 58 and 40 g to produce a tonne of grain, from which 23, 5, 8, and 42% are exported by the harvest. Micronutrient uptake and exportation rates for the studied transgenic hybrids are lower than the ones previously reported in Brazil and in works abroad.Canadian Center of Science and Education (CCSE)2019-06-19T17:13:34Z2019-06-19T17:13:34Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMARTINEZ GUTIERREZ, A. et al. Uptake and exportation of micronutrients by transgenic cultivars of maize under no-tillage in the brazilian cerrado. Journal of Agricultural Science, [S.l.], v. 10, n. 9, p. 304-314, 2018. DOI: 10.5539/jas.v10n9p304.http://repositorio.ufla.br/jspui/handle/1/34832Journal of Agricultural Science (JAS)reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessMartinez Gutierrez, AaronResende, Álvaro Vilela deSilva, Carine Gregorio MachadoMartins, Denize CarvalhoSimão, Eduardo de PaulaMoreira, Silvino GuimarãesFerreira, Jose Paulo da Costaeng2019-06-19T17:13:35Zoai:localhost:1/34832Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-06-19T17:13:35Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Uptake and exportation of micronutrients by transgenic cultivars
title Uptake and exportation of micronutrients by transgenic cultivars
spellingShingle Uptake and exportation of micronutrients by transgenic cultivars
Martinez Gutierrez, Aaron
Absorption march
High yield
Nutritional requirements
Zea mays L.
title_short Uptake and exportation of micronutrients by transgenic cultivars
title_full Uptake and exportation of micronutrients by transgenic cultivars
title_fullStr Uptake and exportation of micronutrients by transgenic cultivars
title_full_unstemmed Uptake and exportation of micronutrients by transgenic cultivars
title_sort Uptake and exportation of micronutrients by transgenic cultivars
author Martinez Gutierrez, Aaron
author_facet Martinez Gutierrez, Aaron
Resende, Álvaro Vilela de
Silva, Carine Gregorio Machado
Martins, Denize Carvalho
Simão, Eduardo de Paula
Moreira, Silvino Guimarães
Ferreira, Jose Paulo da Costa
author_role author
author2 Resende, Álvaro Vilela de
Silva, Carine Gregorio Machado
Martins, Denize Carvalho
Simão, Eduardo de Paula
Moreira, Silvino Guimarães
Ferreira, Jose Paulo da Costa
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Martinez Gutierrez, Aaron
Resende, Álvaro Vilela de
Silva, Carine Gregorio Machado
Martins, Denize Carvalho
Simão, Eduardo de Paula
Moreira, Silvino Guimarães
Ferreira, Jose Paulo da Costa
dc.subject.por.fl_str_mv Absorption march
High yield
Nutritional requirements
Zea mays L.
topic Absorption march
High yield
Nutritional requirements
Zea mays L.
description Introducing cultivars of high productive potential with adequate agronomic management has contributed to the increase of maize yield in Brazil. This study aimed to characterize the extraction and exportation of micronutrients by modern maize hybrids grown in no-tillage system in the Cerrado region (Brazilian Savannah) with two fertilization levels. We established two crop environments with differentiated levels of soil fertilization, use of products for seed treatment and leaf fertilization, in which four transgenic hybrids were grown. For each environment, we used an experimental design of randomized blocks with four replicates. There were eleven plant samplings during the crop cycle to quantify dry mass production and Cu, Fe, Mn and Zn extraction. Micronutrient uptake is increased when a hybrid with higher potential for biomass production grows in an environment with greater supply of nutrients. Uptake persists throughout the maize cycle, including during the final stages of the reproductive phase, showing late demand for the crop. On average, after tasseling, about 39, 50, 42, and 49% of the total Cu, Fe, Mn and Zn absorption still occurs, respectively. Total uptake of Cu, Fe, Mn and Zn are, respectively, around 8, 199, 58 and 40 g to produce a tonne of grain, from which 23, 5, 8, and 42% are exported by the harvest. Micronutrient uptake and exportation rates for the studied transgenic hybrids are lower than the ones previously reported in Brazil and in works abroad.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-06-19T17:13:34Z
2019-06-19T17:13:34Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv MARTINEZ GUTIERREZ, A. et al. Uptake and exportation of micronutrients by transgenic cultivars of maize under no-tillage in the brazilian cerrado. Journal of Agricultural Science, [S.l.], v. 10, n. 9, p. 304-314, 2018. DOI: 10.5539/jas.v10n9p304.
http://repositorio.ufla.br/jspui/handle/1/34832
identifier_str_mv MARTINEZ GUTIERREZ, A. et al. Uptake and exportation of micronutrients by transgenic cultivars of maize under no-tillage in the brazilian cerrado. Journal of Agricultural Science, [S.l.], v. 10, n. 9, p. 304-314, 2018. DOI: 10.5539/jas.v10n9p304.
url http://repositorio.ufla.br/jspui/handle/1/34832
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Canadian Center of Science and Education (CCSE)
publisher.none.fl_str_mv Canadian Center of Science and Education (CCSE)
dc.source.none.fl_str_mv Journal of Agricultural Science (JAS)
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439022327070720