Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/40941 |
Resumo: | Maize breeding programs conduct multi-environment trials every year to assess the performance of new cultivars in pre-releasing tests. The data are combined across sites and seasons to perform a joint analysis in order to obtain information that will help breeders to select the best cultivars for different environments. Beyond this, it is essential to understand the different factors that can hamper the selection and genetic progress (i.e., genetic variability, selection intensity and genotype-by-environment interactions). In this study, the genetic progress (GP) was estimated and the adaptability and stability of 81 maize genotypes were evaluated in a series of trials for the value of cultivation and use (VCU) between the 2010/11 and 2014/15 growing seasons. The genotypes were composed of open-pollinated varieties, topcross hybrids, intervarietal hybrids, and single, double and three-way cross hybrids and were assessed in 117 environments in the central region of Brazil, from which 22 presented environmental stresses. For grain yield, an annual GP of 331.5 kg ha-1 was observed, thus showing efficiency in the selection of superior cultivars. Additionally, it was observed that some low-cost seed cultivars showed yield potential, adaptability and stability estimates that were compatible with commercial hybrids, thus making them quite attractive for cultivation in environments with or without abiotic stresses. |
id |
UFLA_42a2778efb8024d3d29a16bd1d8d694f |
---|---|
oai_identifier_str |
oai:localhost:1/40941 |
network_acronym_str |
UFLA |
network_name_str |
Repositório Institucional da UFLA |
repository_id_str |
|
spelling |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trialsMixed modelGenetic gainBiplotModelo mistoGanho genéticoMaize breeding programs conduct multi-environment trials every year to assess the performance of new cultivars in pre-releasing tests. The data are combined across sites and seasons to perform a joint analysis in order to obtain information that will help breeders to select the best cultivars for different environments. Beyond this, it is essential to understand the different factors that can hamper the selection and genetic progress (i.e., genetic variability, selection intensity and genotype-by-environment interactions). In this study, the genetic progress (GP) was estimated and the adaptability and stability of 81 maize genotypes were evaluated in a series of trials for the value of cultivation and use (VCU) between the 2010/11 and 2014/15 growing seasons. The genotypes were composed of open-pollinated varieties, topcross hybrids, intervarietal hybrids, and single, double and three-way cross hybrids and were assessed in 117 environments in the central region of Brazil, from which 22 presented environmental stresses. For grain yield, an annual GP of 331.5 kg ha-1 was observed, thus showing efficiency in the selection of superior cultivars. Additionally, it was observed that some low-cost seed cultivars showed yield potential, adaptability and stability estimates that were compatible with commercial hybrids, thus making them quite attractive for cultivation in environments with or without abiotic stresses.Universidade Estadual de Maringá2020-05-15T17:44:11Z2020-05-15T17:44:11Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfUATE, J. V. et al. Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials. Acta Scientiarum. Agronomy, Maringá, v. 41, 2019. DOI: 10.4025/actasciagron.v41i1.42624http://repositorio.ufla.br/jspui/handle/1/40941Acta Scientiarum. Agronomyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessUate, Joaquim VicenteNuvunga, Joel JorgeSilva, Carlos Pereira daGuimarães, Lauro José MoreiraVon Pinho, Renzo GarciaBalestre, Marcioeng2020-05-15T17:49:55Zoai:localhost:1/40941Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-05-15T17:49:55Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
title |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
spellingShingle |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials Uate, Joaquim Vicente Mixed model Genetic gain Biplot Modelo misto Ganho genético |
title_short |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
title_full |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
title_fullStr |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
title_full_unstemmed |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
title_sort |
Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials |
author |
Uate, Joaquim Vicente |
author_facet |
Uate, Joaquim Vicente Nuvunga, Joel Jorge Silva, Carlos Pereira da Guimarães, Lauro José Moreira Von Pinho, Renzo Garcia Balestre, Marcio |
author_role |
author |
author2 |
Nuvunga, Joel Jorge Silva, Carlos Pereira da Guimarães, Lauro José Moreira Von Pinho, Renzo Garcia Balestre, Marcio |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Uate, Joaquim Vicente Nuvunga, Joel Jorge Silva, Carlos Pereira da Guimarães, Lauro José Moreira Von Pinho, Renzo Garcia Balestre, Marcio |
dc.subject.por.fl_str_mv |
Mixed model Genetic gain Biplot Modelo misto Ganho genético |
topic |
Mixed model Genetic gain Biplot Modelo misto Ganho genético |
description |
Maize breeding programs conduct multi-environment trials every year to assess the performance of new cultivars in pre-releasing tests. The data are combined across sites and seasons to perform a joint analysis in order to obtain information that will help breeders to select the best cultivars for different environments. Beyond this, it is essential to understand the different factors that can hamper the selection and genetic progress (i.e., genetic variability, selection intensity and genotype-by-environment interactions). In this study, the genetic progress (GP) was estimated and the adaptability and stability of 81 maize genotypes were evaluated in a series of trials for the value of cultivation and use (VCU) between the 2010/11 and 2014/15 growing seasons. The genotypes were composed of open-pollinated varieties, topcross hybrids, intervarietal hybrids, and single, double and three-way cross hybrids and were assessed in 117 environments in the central region of Brazil, from which 22 presented environmental stresses. For grain yield, an annual GP of 331.5 kg ha-1 was observed, thus showing efficiency in the selection of superior cultivars. Additionally, it was observed that some low-cost seed cultivars showed yield potential, adaptability and stability estimates that were compatible with commercial hybrids, thus making them quite attractive for cultivation in environments with or without abiotic stresses. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2020-05-15T17:44:11Z 2020-05-15T17:44:11Z |
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 |
UATE, J. V. et al. Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials. Acta Scientiarum. Agronomy, Maringá, v. 41, 2019. DOI: 10.4025/actasciagron.v41i1.42624 http://repositorio.ufla.br/jspui/handle/1/40941 |
identifier_str_mv |
UATE, J. V. et al. Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials. Acta Scientiarum. Agronomy, Maringá, v. 41, 2019. DOI: 10.4025/actasciagron.v41i1.42624 |
url |
http://repositorio.ufla.br/jspui/handle/1/40941 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
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 |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy 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_ |
1784549998282670080 |