The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854

Detalhes bibliográficos
Autor(a) principal: Silva, Raphael Rossi
Data de Publicação: 2014
Outros Autores: Benin, Giovani, Marchese, José Abramo, Silva, Éder David Borges da, Marchioro, Volmir Sérgio
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854
Resumo: The potential yield of wheat is mainly determined by temperature, solar radiation and the photothermal quotient. The objective of this study was to determine the temporal and spatial variability of the photothermal quotient and the frost risk to identify suitable sowing dates for wheat in Parana State, Brazil. The results showed that the photothermal quotient has greater spatial variability than temporal variability. The sowing date affects crop conditions that can in turn affect yield. However, the photothermal quotient and frost risk fluctuate differently in different Value for Cultivation and Use (VCU) regions. The regions VCU 1 and VCU 2 showed greater temporal variability of the photothermal quotient. The photothermal quotient ranged from 1.5 to 2.0 MJ m-2 day ºC in VCU 1, from 1.1 to 1.5 MJ m-2 day ºC in VCU 2 and from 1.0 to 1.2 MJ m-2 day ºC in VCU 3. Sowing performed in June provided the greatest photothermal quotient in all VCU regions. However, June sowing increased the frost risk in VCU 1. Thus, the sowing date can be used as a management tool for the attainment of higher yield in wheat. 
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spelling The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854Triticum aestivum (L.)yield potentialsolar radiation5.01.03.00-8The potential yield of wheat is mainly determined by temperature, solar radiation and the photothermal quotient. The objective of this study was to determine the temporal and spatial variability of the photothermal quotient and the frost risk to identify suitable sowing dates for wheat in Parana State, Brazil. The results showed that the photothermal quotient has greater spatial variability than temporal variability. The sowing date affects crop conditions that can in turn affect yield. However, the photothermal quotient and frost risk fluctuate differently in different Value for Cultivation and Use (VCU) regions. The regions VCU 1 and VCU 2 showed greater temporal variability of the photothermal quotient. The photothermal quotient ranged from 1.5 to 2.0 MJ m-2 day ºC in VCU 1, from 1.1 to 1.5 MJ m-2 day ºC in VCU 2 and from 1.0 to 1.2 MJ m-2 day ºC in VCU 3. Sowing performed in June provided the greatest photothermal quotient in all VCU regions. However, June sowing increased the frost risk in VCU 1. Thus, the sowing date can be used as a management tool for the attainment of higher yield in wheat. Universidade Estadual de Maringá2014-01-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfapplication/mswordhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1485410.4025/actasciagron.v36i1.14854Acta Scientiarum. Agronomy; Vol 36 No 1 (2014); 99-110Acta Scientiarum. Agronomy; v. 36 n. 1 (2014); 99-1101807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854/pdf_1http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854/751375141211http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854/751375141447Silva, Raphael RossiBenin, GiovaniMarchese, José AbramoSilva, Éder David Borges daMarchioro, Volmir Sérgioinfo:eu-repo/semantics/openAccess2014-07-24T11:32:42Zoai:periodicos.uem.br/ojs:article/14854Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2014-07-24T11:32:42Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
title The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
spellingShingle The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
Silva, Raphael Rossi
Triticum aestivum (L.)
yield potential
solar radiation
5.01.03.00-8
title_short The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
title_full The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
title_fullStr The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
title_full_unstemmed The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
title_sort The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854
author Silva, Raphael Rossi
author_facet Silva, Raphael Rossi
Benin, Giovani
Marchese, José Abramo
Silva, Éder David Borges da
Marchioro, Volmir Sérgio
author_role author
author2 Benin, Giovani
Marchese, José Abramo
Silva, Éder David Borges da
Marchioro, Volmir Sérgio
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Silva, Raphael Rossi
Benin, Giovani
Marchese, José Abramo
Silva, Éder David Borges da
Marchioro, Volmir Sérgio
dc.subject.por.fl_str_mv Triticum aestivum (L.)
yield potential
solar radiation
5.01.03.00-8
topic Triticum aestivum (L.)
yield potential
solar radiation
5.01.03.00-8
description The potential yield of wheat is mainly determined by temperature, solar radiation and the photothermal quotient. The objective of this study was to determine the temporal and spatial variability of the photothermal quotient and the frost risk to identify suitable sowing dates for wheat in Parana State, Brazil. The results showed that the photothermal quotient has greater spatial variability than temporal variability. The sowing date affects crop conditions that can in turn affect yield. However, the photothermal quotient and frost risk fluctuate differently in different Value for Cultivation and Use (VCU) regions. The regions VCU 1 and VCU 2 showed greater temporal variability of the photothermal quotient. The photothermal quotient ranged from 1.5 to 2.0 MJ m-2 day ºC in VCU 1, from 1.1 to 1.5 MJ m-2 day ºC in VCU 2 and from 1.0 to 1.2 MJ m-2 day ºC in VCU 3. Sowing performed in June provided the greatest photothermal quotient in all VCU regions. However, June sowing increased the frost risk in VCU 1. Thus, the sowing date can be used as a management tool for the attainment of higher yield in wheat. 
publishDate 2014
dc.date.none.fl_str_mv 2014-01-07
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854
10.4025/actasciagron.v36i1.14854
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854
identifier_str_mv 10.4025/actasciagron.v36i1.14854
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854/pdf_1
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854/751375141211
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854/751375141447
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
application/msword
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 36 No 1 (2014); 99-110
Acta Scientiarum. Agronomy; v. 36 n. 1 (2014); 99-110
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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