Selection strategies for grain quality in upland rice lines.

Detalhes bibliográficos
Autor(a) principal: NETO, A. R.
Data de Publicação: 2019
Outros Autores: CASTRO, D. G., SILVA, C. S. da, TOMÉ, L. M., BASSINELLO, P. Z., BOTELHO, F. B. S.
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/1105023
Resumo: The grain quality in rice is extremely important for breeding programs, in order to select lines that meet the standards demanded by the market. The quality attribute is composed by several characteristics, which can make difficult the work for breeder. Thus, the objective in this study was to verify the efficiency of the selection indexes in order to select upland rice lines that meet the grain quality standards. Fourteen lines of the Cultivation and Use Value test (CUV) of the upland rice breeding program of the Federal University of Lavras were evaluated. The experiments were conducted in the municipalities of Lavras-MG and Lambari-MG in the seasons of 2015/2016 and 2016/2017. The experimental was a randomized block design with three replications. The following characteristics were evaluated to compose the indexes: grain yield, minimum cooking time, water absorption index, grain chalkiness, integer grain percentage, grain length and width, apparent amylose content and gelatinization temperature. The following selection indexes were compared: Base index of Willians, Sum of “Ranks” of Mulamb and Mock, and Index Sum of Standardized Variables (Z Index) and also was held direct selection through grain yield. It was observed that the Base index obtained good gains with the selection for grain yield, but it was inefficient for the quality characteristics, results when used direct selection. The Ranks and Z index obtained superior and balanced gains for the characteristics, showing up more efficient in the selection of upland rice lines aiming at the quality of grains.
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spelling Selection strategies for grain quality in upland rice lines.ArrozOryza SativaMelhoramento Genético VegetalQualidadeGrãoRicePlant breedingMultiple trait selectionThe grain quality in rice is extremely important for breeding programs, in order to select lines that meet the standards demanded by the market. The quality attribute is composed by several characteristics, which can make difficult the work for breeder. Thus, the objective in this study was to verify the efficiency of the selection indexes in order to select upland rice lines that meet the grain quality standards. Fourteen lines of the Cultivation and Use Value test (CUV) of the upland rice breeding program of the Federal University of Lavras were evaluated. The experiments were conducted in the municipalities of Lavras-MG and Lambari-MG in the seasons of 2015/2016 and 2016/2017. The experimental was a randomized block design with three replications. The following characteristics were evaluated to compose the indexes: grain yield, minimum cooking time, water absorption index, grain chalkiness, integer grain percentage, grain length and width, apparent amylose content and gelatinization temperature. The following selection indexes were compared: Base index of Willians, Sum of “Ranks” of Mulamb and Mock, and Index Sum of Standardized Variables (Z Index) and also was held direct selection through grain yield. It was observed that the Base index obtained good gains with the selection for grain yield, but it was inefficient for the quality characteristics, results when used direct selection. The Ranks and Z index obtained superior and balanced gains for the characteristics, showing up more efficient in the selection of upland rice lines aiming at the quality of grains.ANTONIO R. NETO, UFLA; DOUGLAS G. CASTRO, UFLA; CAMILA S. C. DA SILVA, UFLA; LAIS M. TOME, UFLA; PRISCILA ZACZUK BASSINELLO, CNPAF; FLAVIA B. S. BOTELHO, UFLA.NETO, A. R.CASTRO, D. G.SILVA, C. S. daTOMÉ, L. M.BASSINELLO, P. Z.BOTELHO, F. B. S.2019-01-31T23:43:20Z2019-01-31T23:43:20Z2019-01-2920192020-02-12T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of Agricultural Science, v. 11, n. 3, 2019.1916-9760http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105023enginfo: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:EMBRAPA2019-01-31T23:43:26Zoai:www.alice.cnptia.embrapa.br:doc/1105023Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542019-01-31T23:43:26falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542019-01-31T23:43:26Repositório 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 Selection strategies for grain quality in upland rice lines.
title Selection strategies for grain quality in upland rice lines.
spellingShingle Selection strategies for grain quality in upland rice lines.
NETO, A. R.
Arroz
Oryza Sativa
Melhoramento Genético Vegetal
Qualidade
Grão
Rice
Plant breeding
Multiple trait selection
title_short Selection strategies for grain quality in upland rice lines.
title_full Selection strategies for grain quality in upland rice lines.
title_fullStr Selection strategies for grain quality in upland rice lines.
title_full_unstemmed Selection strategies for grain quality in upland rice lines.
title_sort Selection strategies for grain quality in upland rice lines.
author NETO, A. R.
author_facet NETO, A. R.
CASTRO, D. G.
SILVA, C. S. da
TOMÉ, L. M.
BASSINELLO, P. Z.
BOTELHO, F. B. S.
author_role author
author2 CASTRO, D. G.
SILVA, C. S. da
TOMÉ, L. M.
BASSINELLO, P. Z.
BOTELHO, F. B. S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv ANTONIO R. NETO, UFLA; DOUGLAS G. CASTRO, UFLA; CAMILA S. C. DA SILVA, UFLA; LAIS M. TOME, UFLA; PRISCILA ZACZUK BASSINELLO, CNPAF; FLAVIA B. S. BOTELHO, UFLA.
dc.contributor.author.fl_str_mv NETO, A. R.
CASTRO, D. G.
SILVA, C. S. da
TOMÉ, L. M.
BASSINELLO, P. Z.
BOTELHO, F. B. S.
dc.subject.por.fl_str_mv Arroz
Oryza Sativa
Melhoramento Genético Vegetal
Qualidade
Grão
Rice
Plant breeding
Multiple trait selection
topic Arroz
Oryza Sativa
Melhoramento Genético Vegetal
Qualidade
Grão
Rice
Plant breeding
Multiple trait selection
description The grain quality in rice is extremely important for breeding programs, in order to select lines that meet the standards demanded by the market. The quality attribute is composed by several characteristics, which can make difficult the work for breeder. Thus, the objective in this study was to verify the efficiency of the selection indexes in order to select upland rice lines that meet the grain quality standards. Fourteen lines of the Cultivation and Use Value test (CUV) of the upland rice breeding program of the Federal University of Lavras were evaluated. The experiments were conducted in the municipalities of Lavras-MG and Lambari-MG in the seasons of 2015/2016 and 2016/2017. The experimental was a randomized block design with three replications. The following characteristics were evaluated to compose the indexes: grain yield, minimum cooking time, water absorption index, grain chalkiness, integer grain percentage, grain length and width, apparent amylose content and gelatinization temperature. The following selection indexes were compared: Base index of Willians, Sum of “Ranks” of Mulamb and Mock, and Index Sum of Standardized Variables (Z Index) and also was held direct selection through grain yield. It was observed that the Base index obtained good gains with the selection for grain yield, but it was inefficient for the quality characteristics, results when used direct selection. The Ranks and Z index obtained superior and balanced gains for the characteristics, showing up more efficient in the selection of upland rice lines aiming at the quality of grains.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-31T23:43:20Z
2019-01-31T23:43:20Z
2019-01-29
2019
2020-02-12T11:11:11Z
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 Journal of Agricultural Science, v. 11, n. 3, 2019.
1916-9760
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105023
identifier_str_mv Journal of Agricultural Science, v. 11, n. 3, 2019.
1916-9760
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105023
dc.language.iso.fl_str_mv eng
language eng
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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)
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reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
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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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