Inbreeding in sugarcane varieties

Detalhes bibliográficos
Autor(a) principal: Silva,Marcelo de Almeida
Data de Publicação: 2011
Outros Autores: Gonçalves,Paulo de Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Rural
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000400005
Resumo: Sugarcane species are allogamous, i.e. selfing is expected to reduce plant vigor. This study was undertaken to obtain and evaluate first-generation inbred lines that may be used for further crosses and determine the extent of inbreeding depression in sugarcane. In this research, 26 parental varieties were self-pollinated to obtain about 19,000 seedlings. Results showed that it is possible to segregate different traits in a given variety and find lines with promising outcome for all assessed characteristics. The soluble solids segregation observed in low and even high-Brix varieties increases the possibility of quick improvement in this trait. Self-pollination did not produce a general loss in yield traits such as soluble solids, stalk number and stalk diameter in any of the 26 varieties, but both stalk height and stalk weight showed strong inbreeding depression. Selfing-derived clones can be used to produce hybrid vigor in crossings.
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spelling Inbreeding in sugarcane varietiesSaccharum spp.endogamyhybridspollinationsoluble solidsSugarcane species are allogamous, i.e. selfing is expected to reduce plant vigor. This study was undertaken to obtain and evaluate first-generation inbred lines that may be used for further crosses and determine the extent of inbreeding depression in sugarcane. In this research, 26 parental varieties were self-pollinated to obtain about 19,000 seedlings. Results showed that it is possible to segregate different traits in a given variety and find lines with promising outcome for all assessed characteristics. The soluble solids segregation observed in low and even high-Brix varieties increases the possibility of quick improvement in this trait. Self-pollination did not produce a general loss in yield traits such as soluble solids, stalk number and stalk diameter in any of the 26 varieties, but both stalk height and stalk weight showed strong inbreeding depression. Selfing-derived clones can be used to produce hybrid vigor in crossings.Universidade Federal de Santa Maria2011-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000400005Ciência Rural v.41 n.4 2011reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/S0103-84782011005000028info:eu-repo/semantics/openAccessSilva,Marcelo de AlmeidaGonçalves,Paulo de Souzaeng2011-10-13T00:00:00ZRevista
dc.title.none.fl_str_mv Inbreeding in sugarcane varieties
title Inbreeding in sugarcane varieties
spellingShingle Inbreeding in sugarcane varieties
Silva,Marcelo de Almeida
Saccharum spp.
endogamy
hybrids
pollination
soluble solids
title_short Inbreeding in sugarcane varieties
title_full Inbreeding in sugarcane varieties
title_fullStr Inbreeding in sugarcane varieties
title_full_unstemmed Inbreeding in sugarcane varieties
title_sort Inbreeding in sugarcane varieties
author Silva,Marcelo de Almeida
author_facet Silva,Marcelo de Almeida
Gonçalves,Paulo de Souza
author_role author
author2 Gonçalves,Paulo de Souza
author2_role author
dc.contributor.author.fl_str_mv Silva,Marcelo de Almeida
Gonçalves,Paulo de Souza
dc.subject.por.fl_str_mv Saccharum spp.
endogamy
hybrids
pollination
soluble solids
topic Saccharum spp.
endogamy
hybrids
pollination
soluble solids
description Sugarcane species are allogamous, i.e. selfing is expected to reduce plant vigor. This study was undertaken to obtain and evaluate first-generation inbred lines that may be used for further crosses and determine the extent of inbreeding depression in sugarcane. In this research, 26 parental varieties were self-pollinated to obtain about 19,000 seedlings. Results showed that it is possible to segregate different traits in a given variety and find lines with promising outcome for all assessed characteristics. The soluble solids segregation observed in low and even high-Brix varieties increases the possibility of quick improvement in this trait. Self-pollination did not produce a general loss in yield traits such as soluble solids, stalk number and stalk diameter in any of the 26 varieties, but both stalk height and stalk weight showed strong inbreeding depression. Selfing-derived clones can be used to produce hybrid vigor in crossings.
publishDate 2011
dc.date.none.fl_str_mv 2011-04-01
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=S0103-84782011000400005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000400005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-84782011005000028
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 Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural v.41 n.4 2011
reponame:Ciência Rural
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Rural
collection Ciência Rural
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1749140539728461824

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