Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem

Detalhes bibliográficos
Autor(a) principal: Chaves, Luciana Gonçalves
Data de Publicação: 2009
Tipo de documento: Dissertação
Idioma: por
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://locus.ufv.br/handle/123456789/4694
Resumo: Aimed to with this work to avaluate of parents in the commercial germplasm and identify the genetic control in advanced generations of forage maize hybrids with high nutritional value. Plants of the F1 and F2 generations of ten commercial maize hybrids recommended for silage production were crossed in a Diallel without reciprocals and obtained 90 hybrid combinations. According to the generation, 45 hybrid combinations and four witnesses were evaluated in two experiments conducted simultaneously. The design was a 7 x 7 lattice with two replications and the plot consists of two lines of four meters. Plants in each plot were harvested when the stage got grain mass / hard and ensiled for later determination of their characteristics bromatological., The data were subjected to analysis of variance and Diallel analysis as model 1, method 4 of Griffing (1956). Was established for the combined analysis of variance, the interaction hybrid combinations x generations showed no significant differences (P <0.05) to obtain the characteristics of green and dry matter, in vitro digestibility of dry matter, which indicates that the performance of hybrid combinations was consistent across two generations for this characteristics. However, there was a significant difference between the generations in some hybrid combinations of characteristics of plants and ear height, dry matter, crude protein and neutral and acid detergent fiber. In Diallel analysis was evident lack of genetic variability for yield of green and dry matter in the F1 generation and greater importance of additive effects for these traits in the F2 generation and showed for bromatological characteristics there was predominance of non additive effects of variance in both generations. The genitor BRS3003 and his F2 had the highest estimates of GCA for the characteristics of productivity and silage quality. Highlights are the hybrid combinations P30F90 x BRS3003, CD307 x Pointer, BRS3003 x 2B619, BRS3003-F1 x AG1051-F1, P30F90-F1 x BRS3003-F1, Valent-F1 x DKB466-F1 and Pointer-F1 x BRS3003-F1, as presented to the average productivity of dry matter (PDM) from 11.21 to 15.18 t / ha, the crude protein content (CP) from 7.86 to 11.01% and the best quality fiber, with an average high in vivo digestibility of dry matter (IVDMD, 62.65 to 73.73%) and low averages for the characteristics in neutral detergent fiber (NDF, 45.0 to 54.08%) and acid detergent fiber (ADF, 19.42 to 24.91%). It is a hybrid combination P30F90 x BRS3003 showed that the best means and ability to show the characteristics of interest and the performance of both generations, and 13.72 t / ha of PDM, 7.86% of CD, 73.73% of IVDMD, 45% of NDF and 19.99% of AFD in F1and 11.21 t / ha of PDM, 7.7% of CP, 71.36% of IVDMD, 48.35% of NDF and 20.36% of ADF in F2. This work demonstrates the commercial potential of germplasm for selection of parents for forage maize obtained from populations of advanced generation hybrids and the importance of not additive effects for bromatological characteristics.
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spelling Chaves, Luciana Gonçalveshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4268215U3Galvão, João Carlos Cardosohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784805H4Pereira, Odilon Gomeshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790978J6Miranda, Glauco Vieirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782667H6Rodrigues, José Avelino Santoshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782796A4Tadin, Flavio Dessaunehttp://lattes.cnpq.br/86917576155477972015-03-26T13:42:08Z2009-07-282015-03-26T13:42:08Z2009-02-27CHAVES, Luciana Gonçalves. Selection of commercial genitors and genetic control of agronomic and nutritional traits of maize plant for silage. 2009. 73 f. Dissertação (Mestrado em Genética animal; Genética molecular e de microrganismos; Genética quantitativa; Genética vegetal; Me) - Universidade Federal de Viçosa, Viçosa, 2009.http://locus.ufv.br/handle/123456789/4694Aimed to with this work to avaluate of parents in the commercial germplasm and identify the genetic control in advanced generations of forage maize hybrids with high nutritional value. Plants of the F1 and F2 generations of ten commercial maize hybrids recommended for silage production were crossed in a Diallel without reciprocals and obtained 90 hybrid combinations. According to the generation, 45 hybrid combinations and four witnesses were evaluated in two experiments conducted simultaneously. The design was a 7 x 7 lattice with two replications and the plot consists of two lines of four meters. Plants in each plot were harvested when the stage got grain mass / hard and ensiled for later determination of their characteristics bromatological., The data were subjected to analysis of variance and Diallel analysis as model 1, method 4 of Griffing (1956). Was established for the combined analysis of variance, the interaction hybrid combinations x generations showed no significant differences (P <0.05) to obtain the characteristics of green and dry matter, in vitro digestibility of dry matter, which indicates that the performance of hybrid combinations was consistent across two generations for this characteristics. However, there was a significant difference between the generations in some hybrid combinations of characteristics of plants and ear height, dry matter, crude protein and neutral and acid detergent fiber. In Diallel analysis was evident lack of genetic variability for yield of green and dry matter in the F1 generation and greater importance of additive effects for these traits in the F2 generation and showed for bromatological characteristics there was predominance of non additive effects of variance in both generations. The genitor BRS3003 and his F2 had the highest estimates of GCA for the characteristics of productivity and silage quality. Highlights are the hybrid combinations P30F90 x BRS3003, CD307 x Pointer, BRS3003 x 2B619, BRS3003-F1 x AG1051-F1, P30F90-F1 x BRS3003-F1, Valent-F1 x DKB466-F1 and Pointer-F1 x BRS3003-F1, as presented to the average productivity of dry matter (PDM) from 11.21 to 15.18 t / ha, the crude protein content (CP) from 7.86 to 11.01% and the best quality fiber, with an average high in vivo digestibility of dry matter (IVDMD, 62.65 to 73.73%) and low averages for the characteristics in neutral detergent fiber (NDF, 45.0 to 54.08%) and acid detergent fiber (ADF, 19.42 to 24.91%). It is a hybrid combination P30F90 x BRS3003 showed that the best means and ability to show the characteristics of interest and the performance of both generations, and 13.72 t / ha of PDM, 7.86% of CD, 73.73% of IVDMD, 45% of NDF and 19.99% of AFD in F1and 11.21 t / ha of PDM, 7.7% of CP, 71.36% of IVDMD, 48.35% of NDF and 20.36% of ADF in F2. This work demonstrates the commercial potential of germplasm for selection of parents for forage maize obtained from populations of advanced generation hybrids and the importance of not additive effects for bromatological characteristics.Objetivou-se com este trabalho avaliar genitores do germoplasma comercial e identificar o controle genético em gerações avançadas de híbridos para obter cultivares de milho forrageiro com alto valore nutritivo. As plantas das gerações F1 e F2 de dez híbridos comerciais de milho utilizados para produção de silagem foram cruzadas em esquema de dialelo completo sem recíprocos e obtidas 90 combinações híbridas. De acordo com a geração, 45 combinações híbridas e quatro testemunhas foram avaliadas em dois experimentos conduzidos simultaneamente. O delineamento utilizado foi o látice 7 x 7 com duas repetições e a parcela constituída de duas linhas de 4 m. As plantas de cada parcela foram colhidas quando apresentavam seus grãos no estádio farináceo/duro e ensiladas para posterior determinação de suas características nutricionais. Os dados foram submetidos à análise de variância e à análise dialélica, conforme modelo 1, método 4 de Griffing (1956). Foi constatado, na análise de variância conjunta, que a interação entre combinações híbridas x gerações não apresentou diferença significativa (P<0,05) para as características produtividades de matéria verde e seca e digestibilidade in vitro da matéria seca, indicando que o comportamento das combinações híbridas foi consistente nas duas gerações para estas características. No entanto, constatou-se a diferença significativa para as características alturas de plantas e espigas e teores de matéria seca, proteína bruta e fibras em detergente neutro e ácido. Na análise dialélica, foi evidenciado ausência de variabilidade genética para produtividade de matéria verde e seca na geração F1 e maior importância dos efeitos aditivos para essas características na geração F2 e para as características nutricionais houve predominância dos efeitos de variância não aditiva nas duas gerações. O genitor BRS3003 e sua geração F2 apresentaram as maiores estimativas de CGC para as características de produtividade e de qualidade da silagem. Destacaram-se as combinações híbridas P30F90 x BRS3003, CD307 x Pointer e BRS3003 x 2B619 e BRS3003-F1 x AG1051- F1, P30F90-F1 x BRS3003-F1, Valent F1 x DKB466-F1 e Pointer-F1 x BRS3003-F1, pois apresentaram produtividade média de matéria seca (PMS) entre 11,21 e 15,18 t/ha, teores protéicos brutos (PB) entre 7,86 e 11,01% e os melhores resultados para qualidade de fibra, com alta média para digestibilidade in vitro de matéria seca (DIVMS, 62,65 a 73,73%) e baixas médias para as características fibra em detergente neutro (FDN, 45,0 a 54,08%) e fibra em detergente ácido (FDA, 19,42 a 24,91%). Destacou-se a combinação híbrida P30F90 x BRS3003 que apresentou as melhores médias e capacidade de combinação para as características de interesse e comportamento consistente nas duas gerações, como 13,72t/ha de PMS, 7,86% de PB, 73,73% de DIVMS, 45% de FDN e 19,99% de FDA em F1 e 11,21t/ha de PMS, 7,7% de PB, 71,36% de DIVMS, 48,35% de FDN, 20,36% de FDA em F2. O presente trabalho demonstra o potencial do germoplasma comercial para a seleção de genitores de milho forrageiro por meio de populações obtidas de gerações avançadas na obtenção de híbridos superiores e maior importância dos efeitos não aditivos para as características nutritivas.Fundação de Amparo a Pesquisa do Estado de Minas Geraisapplication/pdfporUniversidade Federal de ViçosaMestrado em Genética e MelhoramentoUFVBRGenética animal; Genética molecular e de microrganismos; Genética quantitativa; Genética vegetal; MeZea maysSilagemDialeloMelhoramento vegetalZea maysSilageDiallelPlant breedingCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MELHORAMENTO VEGETALSeleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagemSelection of commercial genitors and genetic control of agronomic and nutritional traits of maize plant for silageinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf618092https://locus.ufv.br//bitstream/123456789/4694/1/texto%20completo.pdf6c0a8d6f87619677f5920dc85a06402bMD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain152680https://locus.ufv.br//bitstream/123456789/4694/2/texto%20completo.pdf.txt97c52405f934cb638f383a42c9d0c2caMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3608https://locus.ufv.br//bitstream/123456789/4694/3/texto%20completo.pdf.jpg52ec243e9f8b158603c364e50681687eMD53123456789/46942016-04-10 23:12:41.887oai:locus.ufv.br:123456789/4694Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-11T02:12:41LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.por.fl_str_mv Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
dc.title.alternative.eng.fl_str_mv Selection of commercial genitors and genetic control of agronomic and nutritional traits of maize plant for silage
title Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
spellingShingle Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
Chaves, Luciana Gonçalves
Zea mays
Silagem
Dialelo
Melhoramento vegetal
Zea mays
Silage
Diallel
Plant breeding
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MELHORAMENTO VEGETAL
title_short Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
title_full Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
title_fullStr Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
title_full_unstemmed Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
title_sort Seleção de genitores comerciais e controle genético de características agronômicas e nutricionais de plantas de milho para silagem
author Chaves, Luciana Gonçalves
author_facet Chaves, Luciana Gonçalves
author_role author
dc.contributor.authorLattes.por.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4268215U3
dc.contributor.author.fl_str_mv Chaves, Luciana Gonçalves
dc.contributor.advisor-co1.fl_str_mv Galvão, João Carlos Cardoso
dc.contributor.advisor-co1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784805H4
dc.contributor.advisor-co2.fl_str_mv Pereira, Odilon Gomes
dc.contributor.advisor-co2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790978J6
dc.contributor.advisor1.fl_str_mv Miranda, Glauco Vieira
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782667H6
dc.contributor.referee1.fl_str_mv Rodrigues, José Avelino Santos
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782796A4
dc.contributor.referee2.fl_str_mv Tadin, Flavio Dessaune
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/8691757615547797
contributor_str_mv Galvão, João Carlos Cardoso
Pereira, Odilon Gomes
Miranda, Glauco Vieira
Rodrigues, José Avelino Santos
Tadin, Flavio Dessaune
dc.subject.por.fl_str_mv Zea mays
Silagem
Dialelo
Melhoramento vegetal
topic Zea mays
Silagem
Dialelo
Melhoramento vegetal
Zea mays
Silage
Diallel
Plant breeding
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MELHORAMENTO VEGETAL
dc.subject.eng.fl_str_mv Zea mays
Silage
Diallel
Plant breeding
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MELHORAMENTO VEGETAL
description Aimed to with this work to avaluate of parents in the commercial germplasm and identify the genetic control in advanced generations of forage maize hybrids with high nutritional value. Plants of the F1 and F2 generations of ten commercial maize hybrids recommended for silage production were crossed in a Diallel without reciprocals and obtained 90 hybrid combinations. According to the generation, 45 hybrid combinations and four witnesses were evaluated in two experiments conducted simultaneously. The design was a 7 x 7 lattice with two replications and the plot consists of two lines of four meters. Plants in each plot were harvested when the stage got grain mass / hard and ensiled for later determination of their characteristics bromatological., The data were subjected to analysis of variance and Diallel analysis as model 1, method 4 of Griffing (1956). Was established for the combined analysis of variance, the interaction hybrid combinations x generations showed no significant differences (P <0.05) to obtain the characteristics of green and dry matter, in vitro digestibility of dry matter, which indicates that the performance of hybrid combinations was consistent across two generations for this characteristics. However, there was a significant difference between the generations in some hybrid combinations of characteristics of plants and ear height, dry matter, crude protein and neutral and acid detergent fiber. In Diallel analysis was evident lack of genetic variability for yield of green and dry matter in the F1 generation and greater importance of additive effects for these traits in the F2 generation and showed for bromatological characteristics there was predominance of non additive effects of variance in both generations. The genitor BRS3003 and his F2 had the highest estimates of GCA for the characteristics of productivity and silage quality. Highlights are the hybrid combinations P30F90 x BRS3003, CD307 x Pointer, BRS3003 x 2B619, BRS3003-F1 x AG1051-F1, P30F90-F1 x BRS3003-F1, Valent-F1 x DKB466-F1 and Pointer-F1 x BRS3003-F1, as presented to the average productivity of dry matter (PDM) from 11.21 to 15.18 t / ha, the crude protein content (CP) from 7.86 to 11.01% and the best quality fiber, with an average high in vivo digestibility of dry matter (IVDMD, 62.65 to 73.73%) and low averages for the characteristics in neutral detergent fiber (NDF, 45.0 to 54.08%) and acid detergent fiber (ADF, 19.42 to 24.91%). It is a hybrid combination P30F90 x BRS3003 showed that the best means and ability to show the characteristics of interest and the performance of both generations, and 13.72 t / ha of PDM, 7.86% of CD, 73.73% of IVDMD, 45% of NDF and 19.99% of AFD in F1and 11.21 t / ha of PDM, 7.7% of CP, 71.36% of IVDMD, 48.35% of NDF and 20.36% of ADF in F2. This work demonstrates the commercial potential of germplasm for selection of parents for forage maize obtained from populations of advanced generation hybrids and the importance of not additive effects for bromatological characteristics.
publishDate 2009
dc.date.available.fl_str_mv 2009-07-28
2015-03-26T13:42:08Z
dc.date.issued.fl_str_mv 2009-02-27
dc.date.accessioned.fl_str_mv 2015-03-26T13:42:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
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dc.identifier.citation.fl_str_mv CHAVES, Luciana Gonçalves. Selection of commercial genitors and genetic control of agronomic and nutritional traits of maize plant for silage. 2009. 73 f. Dissertação (Mestrado em Genética animal; Genética molecular e de microrganismos; Genética quantitativa; Genética vegetal; Me) - Universidade Federal de Viçosa, Viçosa, 2009.
dc.identifier.uri.fl_str_mv http://locus.ufv.br/handle/123456789/4694
identifier_str_mv CHAVES, Luciana Gonçalves. Selection of commercial genitors and genetic control of agronomic and nutritional traits of maize plant for silage. 2009. 73 f. Dissertação (Mestrado em Genética animal; Genética molecular e de microrganismos; Genética quantitativa; Genética vegetal; Me) - Universidade Federal de Viçosa, Viçosa, 2009.
url http://locus.ufv.br/handle/123456789/4694
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dc.publisher.program.fl_str_mv Mestrado em Genética e Melhoramento
dc.publisher.initials.fl_str_mv UFV
dc.publisher.country.fl_str_mv BR
dc.publisher.department.fl_str_mv Genética animal; Genética molecular e de microrganismos; Genética quantitativa; Genética vegetal; Me
publisher.none.fl_str_mv Universidade Federal de Viçosa
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