Selection strategies for grain quality in upland rice lines.
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
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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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 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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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1794503470446804992 |