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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
17/01/1991 |
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Data da última atualização: |
24/02/2015 |
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Autoria: |
ROSA, A. do N. |
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Afiliação: |
EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande, MS). |
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Título: |
Relatorio de estagio tecnico no exterior. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Campo Grande : EMBRAPA-CNPGC/IICA/Texas a & m University, 1982. |
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Páginas: |
16p. |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Conteúdo: |
Animal; Melhoramento; Relatorio; Animal. |
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Thesagro: |
Veterinária; Zootecnia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00446nam a2200157 a 4500
001 1320356
005 2015-02-24
008 1982 bl uuuu u0uu1 u #d
100 1 $aROSA, A. do N.
245 $aRelatorio de estagio tecnico no exterior.
260 $aCampo Grande : EMBRAPA-CNPGC/IICA/Texas a & m University$c1982
300 $a16p.
500 $aCNPGC.
520 $aAnimal; Melhoramento; Relatorio; Animal.
650 $aVeterinária
650 $aZootecnia
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
06/11/2017 |
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Data da última atualização: |
07/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
STURION, J. A.; STUEPP, C. A.; WENDLING, I. |
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Afiliação: |
José Alfredo Sturion, Pesquisador aposentado da Embrapa Florestas; Carlos André Stuepp, UEPG; IVAR WENDLING, CNPF. |
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Título: |
Genetic parameters estimates and visual selection for leaves production in Ilex paraguariensis. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Bragantia, Campinas, v. 76, n. 4, p. 492-500, 2017. |
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DOI: |
dx.doi.org/10.1590/1678-4499.2016.419 |
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Idioma: |
Inglês |
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Conteúdo: |
The selection of yerba mate superior genotypes, based on each plant leaf weight, is based on genetic parameters obtained from experimental plantations and it is practically impossible from the fourth year of age. Therefore, we estimate genetic parameters and check the feasibility of selection through notes and weight estimates of each tree at 18.5 years of age. The genetic material consists of a combined trial of provenances and progenies of half-sibs with 140 progenies from 7 provenances, installed in Ivaí, Paraná, Brazil, in a randomized block design with 10 repetitions. The genetic control of leaf production is of low magnitude (h2a = 0.175042 ± 0.0393) revealing high influence of the environment. The additive genetic correlations between the real weight of leaves × notes and real weight of leaves × visually estimated weight were of high magnitude (higher than 88%). Thus, the selection based on the leaves weight can be carried out without major losses in genetic gains by both methodologies when the purpose is the sexual selection, in which case the sort order has no importance. In the case of vegetative propagation, aiming clonal plantations, in which only the plants with the highest genotypic values should be selected, the selection by means of notes and leaves weight estimates proved to be inefficient. |
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Palavras-Chave: |
Correlação genética; Erva mate; Progeny trial. |
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Thesagro: |
Espécie nativa; Ilex Paraguariensis; Teste de Progênie. |
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Thesaurus NAL: |
Yerba mate. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166150/1/2017-Ivar-B-Genetic.pdf
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Marc: |
LEADER 02070naa a2200241 a 4500
001 2078938
005 2017-11-07
008 2017 bl uuuu u00u1 u #d
024 7 $adx.doi.org/10.1590/1678-4499.2016.419$2DOI
100 1 $aSTURION, J. A.
245 $aGenetic parameters estimates and visual selection for leaves production in Ilex paraguariensis.$h[electronic resource]
260 $c2017
520 $aThe selection of yerba mate superior genotypes, based on each plant leaf weight, is based on genetic parameters obtained from experimental plantations and it is practically impossible from the fourth year of age. Therefore, we estimate genetic parameters and check the feasibility of selection through notes and weight estimates of each tree at 18.5 years of age. The genetic material consists of a combined trial of provenances and progenies of half-sibs with 140 progenies from 7 provenances, installed in Ivaí, Paraná, Brazil, in a randomized block design with 10 repetitions. The genetic control of leaf production is of low magnitude (h2a = 0.175042 ± 0.0393) revealing high influence of the environment. The additive genetic correlations between the real weight of leaves × notes and real weight of leaves × visually estimated weight were of high magnitude (higher than 88%). Thus, the selection based on the leaves weight can be carried out without major losses in genetic gains by both methodologies when the purpose is the sexual selection, in which case the sort order has no importance. In the case of vegetative propagation, aiming clonal plantations, in which only the plants with the highest genotypic values should be selected, the selection by means of notes and leaves weight estimates proved to be inefficient.
650 $aYerba mate
650 $aEspécie nativa
650 $aIlex Paraguariensis
650 $aTeste de Progênie
653 $aCorrelação genética
653 $aErva mate
653 $aProgeny trial
700 1 $aSTUEPP, C. A.
700 1 $aWENDLING, I.
773 $tBragantia, Campinas$gv. 76, n. 4, p. 492-500, 2017.
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Embrapa Florestas (CNPF) |
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