Evaluating early selection in perennial tropical forages
Autor(a) principal: | |
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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/1/40587 |
Resumo: | Perennial grass hybrids of Urochloa are evaluated for at least two years during the screening stage trials (SS) and advanced trials (AD) in breeding programs, an expensive and time-consuming process. In this study, we aimed to evaluate the potential for early selection of cultivars in this breeding scheme. We used multiple measurements of agronomic and nutritive value traits of Urochloa humidicola and Urochloa decumbens in the SS, and Urochloa ssp. in the AD. Repeatability coefficient, genetic correlation, selection efficiency (SE), and Spearman correlations were estimated. The results indicated that reliable early selection could be applied, decreasing the evaluation period to one year and a half for SS, and to one year for AD. These results were confirmed by high genetic and rank correlations, and overall SE above 50%. This proposed change in the breeding scheme could save considerable time, labor, and resources and accelerate the release of improved cultivars. |
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Evaluating early selection in perennial tropical foragesUrochloa sppRepeatability coefficientForage breedingRank correlationForrageiras tropicaisSeleção precoceCoeficiente de repetibilidadeCoeficiente de correlaçãoPlantas forrageiras - Melhoramento genéticoPerennial grass hybrids of Urochloa are evaluated for at least two years during the screening stage trials (SS) and advanced trials (AD) in breeding programs, an expensive and time-consuming process. In this study, we aimed to evaluate the potential for early selection of cultivars in this breeding scheme. We used multiple measurements of agronomic and nutritive value traits of Urochloa humidicola and Urochloa decumbens in the SS, and Urochloa ssp. in the AD. Repeatability coefficient, genetic correlation, selection efficiency (SE), and Spearman correlations were estimated. The results indicated that reliable early selection could be applied, decreasing the evaluation period to one year and a half for SS, and to one year for AD. These results were confirmed by high genetic and rank correlations, and overall SE above 50%. This proposed change in the breeding scheme could save considerable time, labor, and resources and accelerate the release of improved cultivars.Brazilian Society of Plant Breeding2020-05-05T17:26:42Z2020-05-05T17:26:42Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFIGUEIREDO, U. J. de et al. Evaluating early selection in perennial tropical forages. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 19, n. 3, p. 291-299, jul./set. 2019.http://repositorio.ufla.br/jspui/handle/1/40587Crop Breeding and Applied Biotechnologyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessFigueiredo, Ulisses José deBerchembrock, Yasmin VasquesValle, Cacilda Borges doBarrios, Sanzio Carvalho LimaQuesenberry, Kenneth H.Muñoz, Patrício RicardoNunes, José Airton Rodrigueseng2020-05-05T17:27:06Zoai:localhost:1/40587Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-05-05T17:27:06Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Evaluating early selection in perennial tropical forages |
title |
Evaluating early selection in perennial tropical forages |
spellingShingle |
Evaluating early selection in perennial tropical forages Figueiredo, Ulisses José de Urochloa spp Repeatability coefficient Forage breeding Rank correlation Forrageiras tropicais Seleção precoce Coeficiente de repetibilidade Coeficiente de correlação Plantas forrageiras - Melhoramento genético |
title_short |
Evaluating early selection in perennial tropical forages |
title_full |
Evaluating early selection in perennial tropical forages |
title_fullStr |
Evaluating early selection in perennial tropical forages |
title_full_unstemmed |
Evaluating early selection in perennial tropical forages |
title_sort |
Evaluating early selection in perennial tropical forages |
author |
Figueiredo, Ulisses José de |
author_facet |
Figueiredo, Ulisses José de Berchembrock, Yasmin Vasques Valle, Cacilda Borges do Barrios, Sanzio Carvalho Lima Quesenberry, Kenneth H. Muñoz, Patrício Ricardo Nunes, José Airton Rodrigues |
author_role |
author |
author2 |
Berchembrock, Yasmin Vasques Valle, Cacilda Borges do Barrios, Sanzio Carvalho Lima Quesenberry, Kenneth H. Muñoz, Patrício Ricardo Nunes, José Airton Rodrigues |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Figueiredo, Ulisses José de Berchembrock, Yasmin Vasques Valle, Cacilda Borges do Barrios, Sanzio Carvalho Lima Quesenberry, Kenneth H. Muñoz, Patrício Ricardo Nunes, José Airton Rodrigues |
dc.subject.por.fl_str_mv |
Urochloa spp Repeatability coefficient Forage breeding Rank correlation Forrageiras tropicais Seleção precoce Coeficiente de repetibilidade Coeficiente de correlação Plantas forrageiras - Melhoramento genético |
topic |
Urochloa spp Repeatability coefficient Forage breeding Rank correlation Forrageiras tropicais Seleção precoce Coeficiente de repetibilidade Coeficiente de correlação Plantas forrageiras - Melhoramento genético |
description |
Perennial grass hybrids of Urochloa are evaluated for at least two years during the screening stage trials (SS) and advanced trials (AD) in breeding programs, an expensive and time-consuming process. In this study, we aimed to evaluate the potential for early selection of cultivars in this breeding scheme. We used multiple measurements of agronomic and nutritive value traits of Urochloa humidicola and Urochloa decumbens in the SS, and Urochloa ssp. in the AD. Repeatability coefficient, genetic correlation, selection efficiency (SE), and Spearman correlations were estimated. The results indicated that reliable early selection could be applied, decreasing the evaluation period to one year and a half for SS, and to one year for AD. These results were confirmed by high genetic and rank correlations, and overall SE above 50%. This proposed change in the breeding scheme could save considerable time, labor, and resources and accelerate the release of improved cultivars. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2020-05-05T17:26:42Z 2020-05-05T17:26:42Z |
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 |
FIGUEIREDO, U. J. de et al. Evaluating early selection in perennial tropical forages. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 19, n. 3, p. 291-299, jul./set. 2019. http://repositorio.ufla.br/jspui/handle/1/40587 |
identifier_str_mv |
FIGUEIREDO, U. J. de et al. Evaluating early selection in perennial tropical forages. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 19, n. 3, p. 291-299, jul./set. 2019. |
url |
http://repositorio.ufla.br/jspui/handle/1/40587 |
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 |
Brazilian Society of Plant Breeding |
publisher.none.fl_str_mv |
Brazilian Society of Plant Breeding |
dc.source.none.fl_str_mv |
Crop Breeding and Applied Biotechnology 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_ |
1807835141062524928 |