Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Relatório |
Idioma: | eng |
Título da fonte: | Journal of Seed Science |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372016000100062 |
Resumo: | Abstract: Brachiaria decumbens has great importance in the national beef cattle scenario due to its high forage yield potential and high adaptability to acid soils and low fertility. In order to obtain new cultivars, intraspecific hybrids, previously selected by the Brachiaria breeding program, were evaluated in 2013 and 2014 for phenological characteristics and seed production potential through their production components, aiming to obtain cultivars with satisfactory production agronomic characteristics and forage yield, resistant to 'cigarrinhas-das-pastagens'(Tomaspia sp.) and good seed production. Estimates of phenotypic correlation and analysis of variance were performed using the SAS 9.3 software. From the results obtained in both consecutive years, it was observed that there was a correlation between the reproductive tiller number (RT) and the pure seeds (PS) weight in the seedbeds of the second year of production around 70% (p < 0.01), which can be considered as a parameter to estimate the production of pure seeds before the start of flowering. |
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Brachiaria decumbens intraspecific hybrids: characterization and selection for seed productionphenologyapomixisgenotypesforage improvementAbstract: Brachiaria decumbens has great importance in the national beef cattle scenario due to its high forage yield potential and high adaptability to acid soils and low fertility. In order to obtain new cultivars, intraspecific hybrids, previously selected by the Brachiaria breeding program, were evaluated in 2013 and 2014 for phenological characteristics and seed production potential through their production components, aiming to obtain cultivars with satisfactory production agronomic characteristics and forage yield, resistant to 'cigarrinhas-das-pastagens'(Tomaspia sp.) and good seed production. Estimates of phenotypic correlation and analysis of variance were performed using the SAS 9.3 software. From the results obtained in both consecutive years, it was observed that there was a correlation between the reproductive tiller number (RT) and the pure seeds (PS) weight in the seedbeds of the second year of production around 70% (p < 0.01), which can be considered as a parameter to estimate the production of pure seeds before the start of flowering.ABRATES - Associação Brasileira de Tecnologia de Sementes2016-03-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372016000100062Journal of Seed Science v.38 n.1 2016reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/2317-1545v38n1152223info:eu-repo/semantics/openAccessMonteiro,Lenise CastilhoVerzignassi,Jaqueline RosemeireBarrios,Sanzio Carvalho LimaValle,Cacilda BorgesFernandes,Celso DornelasBenteo,Gleiciane LimaLibório,Cláudia Barrioseng2016-04-01T00:00:00Zoai:scielo:S2317-15372016000100062Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2016-04-01T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false |
dc.title.none.fl_str_mv |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
title |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
spellingShingle |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production Monteiro,Lenise Castilho phenology apomixis genotypes forage improvement |
title_short |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
title_full |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
title_fullStr |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
title_full_unstemmed |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
title_sort |
Brachiaria decumbens intraspecific hybrids: characterization and selection for seed production |
author |
Monteiro,Lenise Castilho |
author_facet |
Monteiro,Lenise Castilho Verzignassi,Jaqueline Rosemeire Barrios,Sanzio Carvalho Lima Valle,Cacilda Borges Fernandes,Celso Dornelas Benteo,Gleiciane Lima Libório,Cláudia Barrios |
author_role |
author |
author2 |
Verzignassi,Jaqueline Rosemeire Barrios,Sanzio Carvalho Lima Valle,Cacilda Borges Fernandes,Celso Dornelas Benteo,Gleiciane Lima Libório,Cláudia Barrios |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Monteiro,Lenise Castilho Verzignassi,Jaqueline Rosemeire Barrios,Sanzio Carvalho Lima Valle,Cacilda Borges Fernandes,Celso Dornelas Benteo,Gleiciane Lima Libório,Cláudia Barrios |
dc.subject.por.fl_str_mv |
phenology apomixis genotypes forage improvement |
topic |
phenology apomixis genotypes forage improvement |
description |
Abstract: Brachiaria decumbens has great importance in the national beef cattle scenario due to its high forage yield potential and high adaptability to acid soils and low fertility. In order to obtain new cultivars, intraspecific hybrids, previously selected by the Brachiaria breeding program, were evaluated in 2013 and 2014 for phenological characteristics and seed production potential through their production components, aiming to obtain cultivars with satisfactory production agronomic characteristics and forage yield, resistant to 'cigarrinhas-das-pastagens'(Tomaspia sp.) and good seed production. Estimates of phenotypic correlation and analysis of variance were performed using the SAS 9.3 software. From the results obtained in both consecutive years, it was observed that there was a correlation between the reproductive tiller number (RT) and the pure seeds (PS) weight in the seedbeds of the second year of production around 70% (p < 0.01), which can be considered as a parameter to estimate the production of pure seeds before the start of flowering. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/report |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
report |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372016000100062 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372016000100062 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2317-1545v38n1152223 |
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 |
ABRATES - Associação Brasileira de Tecnologia de Sementes |
publisher.none.fl_str_mv |
ABRATES - Associação Brasileira de Tecnologia de Sementes |
dc.source.none.fl_str_mv |
Journal of Seed Science v.38 n.1 2016 reponame:Journal of Seed Science instname:Associação Brasileira de Tecnologia de Sementes (ABRATES) instacron:ABRATES |
instname_str |
Associação Brasileira de Tecnologia de Sementes (ABRATES) |
instacron_str |
ABRATES |
institution |
ABRATES |
reponame_str |
Journal of Seed Science |
collection |
Journal of Seed Science |
repository.name.fl_str_mv |
Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES) |
repository.mail.fl_str_mv |
||abrates@abrates.org.br |
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1754212982105047040 |