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Registros recuperados : 533 | |
103. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | JANK, L.; QUESENBERRY, K. H.; SOLLENBERGER, L. E.; WOFFORD, D. S.; LYRENE, P. M. Selection of morphological traits to improve forage characteristics of Setaria sphacelata grown in Florida. New Zealand Journal of Agricultural Research, Wellington, v. 50, n. 1, p. 73-83, Mar. 2007. Biblioteca(s): Embrapa Gado de Corte. |
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104. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | JANK, L.; GONTIJO NETO, M.; LAURA, V. A.; RESENDE, R. M. S.; VALLE, C. B. do. Selection of Panicum maximum genotypes under different shade levels. In: INTERNATIONAL GRASSLAND CONGRESS, 21.; INTERNATIONAL RANGELAND CONGRESS, 8., 2008, Huhhot, China. Multifunctional grasslands in a changing world: proceedings. Guangzhou: Guangdong People´s Publishing House, 2008. v.2 p. 352 Biblioteca(s): Embrapa Gado de Corte. |
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105. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | CHIARI, L.; VILELA, M. de M.; JANK, L.; FERNANDES, C. D. Identification of a putative gene responsive to the fungus bipolaris maydis in guinea grass. In: INTERNATIONAL SYMPOSIUM OF FORAGE BREEDINGS, 5., 2015, Buenos Aires, Argentina. Anais... Faculdade de Agronomia, Universidade de Buenos Aires, 2015. Biblioteca(s): Embrapa Gado de Corte. |
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106. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VALLE, C. B. do; SAVIDAN, Y. H.; JANK, L.; COSTA, J. C. G. da. Introducao, avaliacao e melhoramento de especies do genero Brachiaria. In: SIMPOSIO SOBRE PRODUCAO ANIMAL, 3., 1986, Campo Grande, Anais... Campinas : Fundacao Cargill, 1986. p.41-44. CNPGC. Biblioteca(s): Embrapa Gado de Corte. |
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107. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VALLE, C. B.; JANK, L.; RESENDE, R. M. S.; BONATO, A. N. V. Lancamento de cultivares forrageiras: o processo e seus resultados - cvs. Massai, Pojuca, Campo Grande e Xaraes. In: EVANGELISTA, A. R.; REIS, S.T.; GOMIDE, E. M. (Ed.). Forragicultura e pastagens: temas em evidencia - sustentabilidade. Lavras: Editora UFLA, 2003. p. 179-225. CNPGC. Simposio de Forragicultura e Pastagens, 4. [2003, Lavras]. Biblioteca(s): Embrapa Gado de Corte. |
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111. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | RAGALZI, C. M.; RESENDE, R. M. S.; VILELA, M. de M.; VENTURA, E. F.; JANK, L. Associação genômica ampla na seleção para apomixia em Panicum maximum jacq. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 11., 2015, Campo Grande, MS. Anais... Campo Grande: Embrapa Gado de Corte, 2015. 114 p. (Embrapa Gado de Corte. Documentos, 213). Biblioteca(s): Embrapa Gado de Corte. |
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112. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | COSTA, N. de L.; JANK, L.; GIANLUPPI, V.; RODRIGUES, A. N. A. Acúmulo de forragem e morfogênese de Megathyrsus maximus x M. infestum cv. Massai sob níveis de desfolhação. In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 12., 2017, Petrolina / Juazeiro. Anais... Petrolina, PE: Juazeiro, BA: Sociedade Nordestina de Produção Animal, 2017. Biblioteca(s): Embrapa Roraima. |
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113. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | CARPEJANI, G. C.; LEMPP, B.; MEDEIROS, S. R.; JANK, L.; GONÇALVES, M. C.; GOMES, R. A. Acúmulo de massa, composição química e digestibilidade in vitro em genótipos de Panicum maximum. In: JORNADA CIENTÍFICA DA EMBRAPA GADO DE CORTE, 2., 2006, Campo Grande, MS. Anais [da]... 2. ed. Campo Grande, MS: Embrapa Gado de Corte, 2006. 1 p. 1 CD-ROM. Biblioteca(s): Embrapa Gado de Corte. |
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115. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | RAGALZI, G. de M.; RAGALZI, C. M.; JANK, L.; SANTOS, M. F. Avaliação de caracteres agronômicos de Panicum maximum Jacq. em diferentes ambientes dentro da Embrapa Gado de Corte. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 15., 2019, Campo Grande, MS. [Resumos dos trabalhos...]. Brasília, DF: Embrapa, 2019 80 p. (Embrapa Gado de Corte. Documentos, 264). Comitê Organizador: Marlene de Barros Coelho; Lenita Ramires dos Santos; Rodrigo Carvalho Alva; Lucimara Chiari; Thais Basso Amaral. 36-37 Biblioteca(s): Embrapa Gado de Corte. |
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120. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BRUNETTI, H. B.; SANTOS, P. M.; SANTOS, M. L. DOS; JANK, L.; SANTOS, M. F. Dehydration avoidance of Megathyrsus maximus genotypes and cultivar Quênia grown in long tubes. In: REUNIÃO DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 57., 2022, Campinas. Tropical animal science and pratice to feed the planet: proceedings. Brasília, DF: SBZ; São Carlos, SP: Embrapa Pecuária Sudeste, 2022. p. 24. Biblioteca(s): Embrapa Gado de Corte. |
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Registros recuperados : 533 | |
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
20/07/2004 |
Data da última atualização: |
05/06/2007 |
Autoria: |
RESENDE, R. M. S.; JANK, L.; VALLE, C. B. do; BONATO, A. N. V. |
Afiliação: |
Embrapa Gado de Corte (Campo Grande, MS). |
Título: |
Biometrical analysis and selection of tetraploid progenies of Panicum maximum using mixed model methods. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 4, p. 335-341, abr. 2004. |
Idioma: |
Inglês |
Notas: |
CNPGC.
|
Conteúdo: |
The objectives of this work were to estimate the genetic and phenotypic parameters and to predict the genetic and genotypic values of the selection candidates obtained from intraspecific crosses in Panicum maximum as well as the performance of the hybrid progeny of the existing and projected crosses. Seventy-nine intraspecific hybrids obtained from artificial crosses among five apomictic and three sexual autotetraploid individuals were evaluated in a clonal test with two replications and ten plants per plot. Green matter yield, total and leaf dry matter yields and leaf percentage were evaluated in five cuts per year during three years. Genetic parameters were estimated and breeding and genotypic values were predicted using the restricted maximum likelihood/best linear unbiased prediction procedure (REML/BLUP). The dominant genetic variance was estimated by adjusting the effect of full-sib families. Low magnitude individual narrow sense heritabilities (0.02?0.05), individual broad sense heritabilities (0.14?0.20) and repeatability measured on an individual basis (0.15?0.21) were obtained. Dominance effects for all evaluated characteristics indicated that breeding strategies that explore heterosis must be adopted. Less than 5% increase in the parameter repeatability was obtained for a three-year evaluation period and may be the criterion to determine the maximum number of years of evaluation to be adopted, without compromising gain per cycle of selection. The identification of hybrid candidates for future cultivars and of those that can be incorporated into the breeding program was based on the genotypic and breeding values, respectively. The prediction of the performance of the hybrid progeny, based on the breeding values of the progenitors, permitted the identification of the best crosses and indicated the best parents to use in crosses. MenosThe objectives of this work were to estimate the genetic and phenotypic parameters and to predict the genetic and genotypic values of the selection candidates obtained from intraspecific crosses in Panicum maximum as well as the performance of the hybrid progeny of the existing and projected crosses. Seventy-nine intraspecific hybrids obtained from artificial crosses among five apomictic and three sexual autotetraploid individuals were evaluated in a clonal test with two replications and ten plants per plot. Green matter yield, total and leaf dry matter yields and leaf percentage were evaluated in five cuts per year during three years. Genetic parameters were estimated and breeding and genotypic values were predicted using the restricted maximum likelihood/best linear unbiased prediction procedure (REML/BLUP). The dominant genetic variance was estimated by adjusting the effect of full-sib families. Low magnitude individual narrow sense heritabilities (0.02?0.05), individual broad sense heritabilities (0.14?0.20) and repeatability measured on an individual basis (0.15?0.21) were obtained. Dominance effects for all evaluated characteristics indicated that breeding strategies that explore heterosis must be adopted. Less than 5% increase in the parameter repeatability was obtained for a three-year evaluation period and may be the criterion to determine the maximum number of years of evaluation to be adopted, without compromising gain per cycle of selection. The identification of... Mostrar Tudo |
Palavras-Chave: |
Colonião; Guineagrass; Herdabilidade; Panicum maximun; Selection. |
Thesagro: |
Apomixia; Melhoramento Genético Vegetal; Pastagem; Seleção. |
Thesaurus NAL: |
apomixis; heritability; pastures; plant breeding. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02774naa a2200325 a 4500 001 1325554 005 2007-06-05 008 2004 bl uuuu u00u1 u #d 100 1 $aRESENDE, R. M. S. 245 $aBiometrical analysis and selection of tetraploid progenies of Panicum maximum using mixed model methods. 260 $c2004 500 $aCNPGC. 520 $aThe objectives of this work were to estimate the genetic and phenotypic parameters and to predict the genetic and genotypic values of the selection candidates obtained from intraspecific crosses in Panicum maximum as well as the performance of the hybrid progeny of the existing and projected crosses. Seventy-nine intraspecific hybrids obtained from artificial crosses among five apomictic and three sexual autotetraploid individuals were evaluated in a clonal test with two replications and ten plants per plot. Green matter yield, total and leaf dry matter yields and leaf percentage were evaluated in five cuts per year during three years. Genetic parameters were estimated and breeding and genotypic values were predicted using the restricted maximum likelihood/best linear unbiased prediction procedure (REML/BLUP). The dominant genetic variance was estimated by adjusting the effect of full-sib families. Low magnitude individual narrow sense heritabilities (0.02?0.05), individual broad sense heritabilities (0.14?0.20) and repeatability measured on an individual basis (0.15?0.21) were obtained. Dominance effects for all evaluated characteristics indicated that breeding strategies that explore heterosis must be adopted. Less than 5% increase in the parameter repeatability was obtained for a three-year evaluation period and may be the criterion to determine the maximum number of years of evaluation to be adopted, without compromising gain per cycle of selection. The identification of hybrid candidates for future cultivars and of those that can be incorporated into the breeding program was based on the genotypic and breeding values, respectively. The prediction of the performance of the hybrid progeny, based on the breeding values of the progenitors, permitted the identification of the best crosses and indicated the best parents to use in crosses. 650 $aapomixis 650 $aheritability 650 $apastures 650 $aplant breeding 650 $aApomixia 650 $aMelhoramento Genético Vegetal 650 $aPastagem 650 $aSeleção 653 $aColonião 653 $aGuineagrass 653 $aHerdabilidade 653 $aPanicum maximun 653 $aSelection 700 1 $aJANK, L. 700 1 $aVALLE, C. B. do 700 1 $aBONATO, A. N. V. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 39, n. 4, p. 335-341, abr. 2004.
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