Estimating the development of landrace and improved maize cultivars as a function of air temperature
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001737 |
Resumo: | ABSTRACT: The objective of this study was to determine the maximum development rates for the phases of emergence, vegetative and reproductive, and to test the performance of the Wang and Engel (WE) model for simulating the development of landrace and improved maize cultivars sown on different dates. Model calibration was with data collected from a field experiment with a sowing date on December 13, 2014, and the model was tested with independent data from experiments with five sowing dates (August 20 and November 4, 2013, February 3 and August 15, 2014, and January 7, 2015) in Santa Maria, RS. The experiment was a complete randomized block design with four replicates. The dates of emergence (EM), silking (R1), and physiological maturity (R6) of two landraces ('Cinquentinha' and 'Bico de ouro') and two improved maize cultivars ('BRS Planalto' and 'AS 1573PRO') were recorded. Maximum daily developmental rates varied among cultivars from 0.2400 to 0.3411 d-1 for the emergence phase, from 0.0213 to 0.0234 d-1 for the vegetative phase, and from 0.0254 to 0.0298 d-1 for the reproductive phase. The WE model adequately estimated the developmental stages of landraces and improved maize cultivars with a mean error of 3.7 days. The cardinal temperatures used in the WE model were appropriate to estimate the developmental stages of landraces and improved maize cultivars. |
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Estimating the development of landrace and improved maize cultivars as a function of air temperature Zea mays Lmodelingphenologydevelopmental stagesABSTRACT: The objective of this study was to determine the maximum development rates for the phases of emergence, vegetative and reproductive, and to test the performance of the Wang and Engel (WE) model for simulating the development of landrace and improved maize cultivars sown on different dates. Model calibration was with data collected from a field experiment with a sowing date on December 13, 2014, and the model was tested with independent data from experiments with five sowing dates (August 20 and November 4, 2013, February 3 and August 15, 2014, and January 7, 2015) in Santa Maria, RS. The experiment was a complete randomized block design with four replicates. The dates of emergence (EM), silking (R1), and physiological maturity (R6) of two landraces ('Cinquentinha' and 'Bico de ouro') and two improved maize cultivars ('BRS Planalto' and 'AS 1573PRO') were recorded. Maximum daily developmental rates varied among cultivars from 0.2400 to 0.3411 d-1 for the emergence phase, from 0.0213 to 0.0234 d-1 for the vegetative phase, and from 0.0254 to 0.0298 d-1 for the reproductive phase. The WE model adequately estimated the developmental stages of landraces and improved maize cultivars with a mean error of 3.7 days. The cardinal temperatures used in the WE model were appropriate to estimate the developmental stages of landraces and improved maize cultivars.Universidade Federal de Santa Maria2016-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001737Ciência Rural v.46 n.10 2016reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20151236info:eu-repo/semantics/openAccessLangner,Josana AndreiaStreck,Nereu AugustoDalmago,Genei AntonioReiniger,Lia Rejane SilveiraDurigon,AngelicaSilva,Stefanía Dalmolin daLago,IsabelScheffel,Lúcio GabrielPoersch,Anderson Haaseng2016-10-20T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
title |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
spellingShingle |
Estimating the development of landrace and improved maize cultivars as a function of air temperature Langner,Josana Andreia Zea mays L modeling phenology developmental stages |
title_short |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
title_full |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
title_fullStr |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
title_full_unstemmed |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
title_sort |
Estimating the development of landrace and improved maize cultivars as a function of air temperature |
author |
Langner,Josana Andreia |
author_facet |
Langner,Josana Andreia Streck,Nereu Augusto Dalmago,Genei Antonio Reiniger,Lia Rejane Silveira Durigon,Angelica Silva,Stefanía Dalmolin da Lago,Isabel Scheffel,Lúcio Gabriel Poersch,Anderson Haas |
author_role |
author |
author2 |
Streck,Nereu Augusto Dalmago,Genei Antonio Reiniger,Lia Rejane Silveira Durigon,Angelica Silva,Stefanía Dalmolin da Lago,Isabel Scheffel,Lúcio Gabriel Poersch,Anderson Haas |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Langner,Josana Andreia Streck,Nereu Augusto Dalmago,Genei Antonio Reiniger,Lia Rejane Silveira Durigon,Angelica Silva,Stefanía Dalmolin da Lago,Isabel Scheffel,Lúcio Gabriel Poersch,Anderson Haas |
dc.subject.por.fl_str_mv |
Zea mays L modeling phenology developmental stages |
topic |
Zea mays L modeling phenology developmental stages |
description |
ABSTRACT: The objective of this study was to determine the maximum development rates for the phases of emergence, vegetative and reproductive, and to test the performance of the Wang and Engel (WE) model for simulating the development of landrace and improved maize cultivars sown on different dates. Model calibration was with data collected from a field experiment with a sowing date on December 13, 2014, and the model was tested with independent data from experiments with five sowing dates (August 20 and November 4, 2013, February 3 and August 15, 2014, and January 7, 2015) in Santa Maria, RS. The experiment was a complete randomized block design with four replicates. The dates of emergence (EM), silking (R1), and physiological maturity (R6) of two landraces ('Cinquentinha' and 'Bico de ouro') and two improved maize cultivars ('BRS Planalto' and 'AS 1573PRO') were recorded. Maximum daily developmental rates varied among cultivars from 0.2400 to 0.3411 d-1 for the emergence phase, from 0.0213 to 0.0234 d-1 for the vegetative phase, and from 0.0254 to 0.0298 d-1 for the reproductive phase. The WE model adequately estimated the developmental stages of landraces and improved maize cultivars with a mean error of 3.7 days. The cardinal temperatures used in the WE model were appropriate to estimate the developmental stages of landraces and improved maize cultivars. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001737 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001737 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20151236 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.46 n.10 2016 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140549841977344 |