Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.

Detalhes bibliográficos
Autor(a) principal: MATEUS, R. G.
Data de Publicação: 2015
Outros Autores: BARRIOS, S. C. L., VALLE, C. B. do, VALERIO, J. R., TORRES, F. Z. V., MARTINS, L. B., AMARAL, P. N. C. do
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088131
Resumo: The objective of this work was to estimate genetic parameters for agronomic traits and resistance to spittlebugs in B. decumbens hybrids and to select the ones with best performance. For that, 324 hybrids were evaluated in field plots for agronomic traits and in the greenhouse for resistance to spittlebugs. Genetic variability amongst the hybrids was observed for all traits analyzed. The heritability estimates between genotypes means were higher than 0.52 for all agronomic traits and 0.98 and 0.99 for nymphal survival and nymphal period duration respectively. Hybrids with better performance than cultivar Basilisk for each individual trait were identified and also through a selection index combining all traits. Assigning weights to the different traits in the selection index did not significantly alter the rank for superior hybrids. Those were selected to continue on to the next phases of the breeding program.
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spelling Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.SpittlebugsCigarrinhaGenótipoHíbridoBrachiaria decumbensApomixisGenotypeHybridsAgronomic traitsThe objective of this work was to estimate genetic parameters for agronomic traits and resistance to spittlebugs in B. decumbens hybrids and to select the ones with best performance. For that, 324 hybrids were evaluated in field plots for agronomic traits and in the greenhouse for resistance to spittlebugs. Genetic variability amongst the hybrids was observed for all traits analyzed. The heritability estimates between genotypes means were higher than 0.52 for all agronomic traits and 0.98 and 0.99 for nymphal survival and nymphal period duration respectively. Hybrids with better performance than cultivar Basilisk for each individual trait were identified and also through a selection index combining all traits. Assigning weights to the different traits in the selection index did not significantly alter the rank for superior hybrids. Those were selected to continue on to the next phases of the breeding program.ROGÉRIO GONÇALVES MATEUS, Universidade Estadual de Mato Grosso do Sul - Aquidauana; SANZIO CARVALHO LIMA BARRIOS, CNPGC; CACILDA BORGES DO VALLE, CNPGC; JOSE RAUL VALERIO, CNPGC; FABRICIA ZIMERMANN VILELA TORRES, CNPGC; LUCAS BEARARI MARTINS, Universidade Estadual de Mato Grosso do Sul - Aquidauana; PEDRO NELSON CESAR do AMARAL, Universidade Estadual de Mato Grosso do Sul - Aquidauana.MATEUS, R. G.BARRIOS, S. C. L.VALLE, C. B. doVALERIO, J. R.TORRES, F. Z. V.MARTINS, L. B.AMARAL, P. N. C. do2018-02-27T00:40:22Z2018-02-27T00:40:22Z2018-02-2620152018-05-11T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCrop Breeding and Applied Biotechnology, v. 15. n. 4, p. 227-234, oct./dez. 2015.http://www.alice.cnptia.embrapa.br/alice/handle/doc/108813110.1590/1984-70332015v15n4a39enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-02-27T00:40:30Zoai:www.alice.cnptia.embrapa.br:doc/1088131Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-02-27T00:40:30falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-02-27T00:40:30Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
title Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
spellingShingle Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
MATEUS, R. G.
Spittlebugs
Cigarrinha
Genótipo
Híbrido
Brachiaria decumbens
Apomixis
Genotype
Hybrids
Agronomic traits
title_short Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
title_full Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
title_fullStr Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
title_full_unstemmed Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
title_sort Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
author MATEUS, R. G.
author_facet MATEUS, R. G.
BARRIOS, S. C. L.
VALLE, C. B. do
VALERIO, J. R.
TORRES, F. Z. V.
MARTINS, L. B.
AMARAL, P. N. C. do
author_role author
author2 BARRIOS, S. C. L.
VALLE, C. B. do
VALERIO, J. R.
TORRES, F. Z. V.
MARTINS, L. B.
AMARAL, P. N. C. do
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv ROGÉRIO GONÇALVES MATEUS, Universidade Estadual de Mato Grosso do Sul - Aquidauana; SANZIO CARVALHO LIMA BARRIOS, CNPGC; CACILDA BORGES DO VALLE, CNPGC; JOSE RAUL VALERIO, CNPGC; FABRICIA ZIMERMANN VILELA TORRES, CNPGC; LUCAS BEARARI MARTINS, Universidade Estadual de Mato Grosso do Sul - Aquidauana; PEDRO NELSON CESAR do AMARAL, Universidade Estadual de Mato Grosso do Sul - Aquidauana.
dc.contributor.author.fl_str_mv MATEUS, R. G.
BARRIOS, S. C. L.
VALLE, C. B. do
VALERIO, J. R.
TORRES, F. Z. V.
MARTINS, L. B.
AMARAL, P. N. C. do
dc.subject.por.fl_str_mv Spittlebugs
Cigarrinha
Genótipo
Híbrido
Brachiaria decumbens
Apomixis
Genotype
Hybrids
Agronomic traits
topic Spittlebugs
Cigarrinha
Genótipo
Híbrido
Brachiaria decumbens
Apomixis
Genotype
Hybrids
Agronomic traits
description The objective of this work was to estimate genetic parameters for agronomic traits and resistance to spittlebugs in B. decumbens hybrids and to select the ones with best performance. For that, 324 hybrids were evaluated in field plots for agronomic traits and in the greenhouse for resistance to spittlebugs. Genetic variability amongst the hybrids was observed for all traits analyzed. The heritability estimates between genotypes means were higher than 0.52 for all agronomic traits and 0.98 and 0.99 for nymphal survival and nymphal period duration respectively. Hybrids with better performance than cultivar Basilisk for each individual trait were identified and also through a selection index combining all traits. Assigning weights to the different traits in the selection index did not significantly alter the rank for superior hybrids. Those were selected to continue on to the next phases of the breeding program.
publishDate 2015
dc.date.none.fl_str_mv 2015
2018-02-27T00:40:22Z
2018-02-27T00:40:22Z
2018-02-26
2018-05-11T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Crop Breeding and Applied Biotechnology, v. 15. n. 4, p. 227-234, oct./dez. 2015.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088131
10.1590/1984-70332015v15n4a39
identifier_str_mv Crop Breeding and Applied Biotechnology, v. 15. n. 4, p. 227-234, oct./dez. 2015.
10.1590/1984-70332015v15n4a39
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088131
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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