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

Detalhes bibliográficos
Autor(a) principal: Mateus,Rogério Gonçalves
Data de Publicação: 2015
Outros Autores: Barrios,Sanzio Carvalho Lima, Valle,Cacilda Borges do, Valério,José Raul, Torres,Fabrícia Zimermann Vilela, Martins,Lucas Bearari, Amaral,Pedro Nelson Cesar do
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Crop Breeding and Applied Biotechnology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000400227
Resumo: Abstract 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 spittlebugsApomixisforage breedingrecurrent selectionselection indexAbstract 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.Crop Breeding and Applied Biotechnology2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000400227Crop Breeding and Applied Biotechnology v.15 n.4 2015reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332015v15n4a39info:eu-repo/semantics/openAccessMateus,Rogério GonçalvesBarrios,Sanzio Carvalho LimaValle,Cacilda Borges doValério,José RaulTorres,Fabrícia Zimermann VilelaMartins,Lucas BearariAmaral,Pedro Nelson Cesar doeng2016-01-13T00:00:00Zoai:scielo:S1984-70332015000400227Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2016-01-13T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
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,Rogério Gonçalves
Apomixis
forage breeding
recurrent selection
selection index
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,Rogério Gonçalves
author_facet Mateus,Rogério Gonçalves
Barrios,Sanzio Carvalho Lima
Valle,Cacilda Borges do
Valério,José Raul
Torres,Fabrícia Zimermann Vilela
Martins,Lucas Bearari
Amaral,Pedro Nelson Cesar do
author_role author
author2 Barrios,Sanzio Carvalho Lima
Valle,Cacilda Borges do
Valério,José Raul
Torres,Fabrícia Zimermann Vilela
Martins,Lucas Bearari
Amaral,Pedro Nelson Cesar do
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Mateus,Rogério Gonçalves
Barrios,Sanzio Carvalho Lima
Valle,Cacilda Borges do
Valério,José Raul
Torres,Fabrícia Zimermann Vilela
Martins,Lucas Bearari
Amaral,Pedro Nelson Cesar do
dc.subject.por.fl_str_mv Apomixis
forage breeding
recurrent selection
selection index
topic Apomixis
forage breeding
recurrent selection
selection index
description Abstract 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 2015-12-01
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=S1984-70332015000400227
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000400227
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332015v15n4a39
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 Crop Breeding and Applied Biotechnology
publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
dc.source.none.fl_str_mv Crop Breeding and Applied Biotechnology v.15 n.4 2015
reponame:Crop Breeding and Applied Biotechnology
instname:Sociedade Brasileira de Melhoramento de Plantas
instacron:CBAB
instname_str Sociedade Brasileira de Melhoramento de Plantas
instacron_str CBAB
institution CBAB
reponame_str Crop Breeding and Applied Biotechnology
collection Crop Breeding and Applied Biotechnology
repository.name.fl_str_mv Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantas
repository.mail.fl_str_mv cbabjournal@gmail.com||cbab@ufv.br
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