Heterosis and combining ability in crosses between two groups of open-pollinated maize populations

Detalhes bibliográficos
Autor(a) principal: Mendes,Udenys Cabral
Data de Publicação: 2015
Outros Autores: Filho,José Branco de Miranda, Oliveira,Aurilene Santos, Reis,Edésio Fialho dos
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=S1984-70332015000400235
Resumo: Abstract The rapid expansion of corn in Brazil indicates the need to explore new sources of germplasm. Thus, the wider use of local germplasm, and the introduction of exotic ones seem to be an advisable strategy to achieve higher levels of yield and adaptability. The objective of this work was to generate information about the potential of two groups of populations (NAP - exotic; HG - local) and their heterotic pattern in hybrid combinations for the synthesis of new populations. Populations and hybrids were evaluated in complete randomized block designs with four replications, in two locations, and three yield traits were studied (GY - grain yield, EY - ear yield, SW - specific weight). The basic strategy was the selection of one HG population as base for the incorporation of each exotic population. The expected yield gain of the best combinations varied from 1 to 22%. Average heterosis for grain yield was 34.5%.
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spelling Heterosis and combining ability in crosses between two groups of open-pollinated maize populationsExotic germplasmsynthesis of populationincorporationpredictionAbstract The rapid expansion of corn in Brazil indicates the need to explore new sources of germplasm. Thus, the wider use of local germplasm, and the introduction of exotic ones seem to be an advisable strategy to achieve higher levels of yield and adaptability. The objective of this work was to generate information about the potential of two groups of populations (NAP - exotic; HG - local) and their heterotic pattern in hybrid combinations for the synthesis of new populations. Populations and hybrids were evaluated in complete randomized block designs with four replications, in two locations, and three yield traits were studied (GY - grain yield, EY - ear yield, SW - specific weight). The basic strategy was the selection of one HG population as base for the incorporation of each exotic population. The expected yield gain of the best combinations varied from 1 to 22%. Average heterosis for grain yield was 34.5%.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=S1984-70332015000400235Crop Breeding and Applied Biotechnology v.15 n.4 2015reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332015v15n4a40info:eu-repo/semantics/openAccessMendes,Udenys CabralFilho,José Branco de MirandaOliveira,Aurilene SantosReis,Edésio Fialho doseng2016-01-13T00:00:00Zoai:scielo:S1984-70332015000400235Revistahttps://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 Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
title Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
spellingShingle Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
Mendes,Udenys Cabral
Exotic germplasm
synthesis of population
incorporation
prediction
title_short Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
title_full Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
title_fullStr Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
title_full_unstemmed Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
title_sort Heterosis and combining ability in crosses between two groups of open-pollinated maize populations
author Mendes,Udenys Cabral
author_facet Mendes,Udenys Cabral
Filho,José Branco de Miranda
Oliveira,Aurilene Santos
Reis,Edésio Fialho dos
author_role author
author2 Filho,José Branco de Miranda
Oliveira,Aurilene Santos
Reis,Edésio Fialho dos
author2_role author
author
author
dc.contributor.author.fl_str_mv Mendes,Udenys Cabral
Filho,José Branco de Miranda
Oliveira,Aurilene Santos
Reis,Edésio Fialho dos
dc.subject.por.fl_str_mv Exotic germplasm
synthesis of population
incorporation
prediction
topic Exotic germplasm
synthesis of population
incorporation
prediction
description Abstract The rapid expansion of corn in Brazil indicates the need to explore new sources of germplasm. Thus, the wider use of local germplasm, and the introduction of exotic ones seem to be an advisable strategy to achieve higher levels of yield and adaptability. The objective of this work was to generate information about the potential of two groups of populations (NAP - exotic; HG - local) and their heterotic pattern in hybrid combinations for the synthesis of new populations. Populations and hybrids were evaluated in complete randomized block designs with four replications, in two locations, and three yield traits were studied (GY - grain yield, EY - ear yield, SW - specific weight). The basic strategy was the selection of one HG population as base for the incorporation of each exotic population. The expected yield gain of the best combinations varied from 1 to 22%. Average heterosis for grain yield was 34.5%.
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=S1984-70332015000400235
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000400235
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332015v15n4a40
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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