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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
22/08/2000 |
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Data da última atualização: |
22/08/2000 |
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Autoria: |
GROF, B.; FERNANDES, C. D.; ALMEIDA, C. B.; SANTOS, A. V. dos. |
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Título: |
Development of a multicross cultivar of Stylosanthes spp. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: INTERNATIONAL GRASSLAND CONFERENCE, 18., 1997, Winnipeg and Saskatoon. Proceedings. [S.l.]: Canadian Forage Council/Canadian Society of Agronomy/Canadian Society of Animal Science, 1999. |
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Idioma: |
Inglês |
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Notas: |
Grasslands 2000. |
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Conteúdo: |
A synthetic population, referred to as multicross, has been developed from an interspecific mixture of Stylosanthes capitata and S. macrocephala germplasm. This basic population evolved in a farm ing situation subject to uncontrolled, continuuous, heavy grazing. Natual selection and systematically programmed intercrossing among anthacnose-resistant Venezuelan and Brazilian genotypes of S. capitata have played najor roles in the subsequent development of this heterogeneous population. Eight anthracnose-resistant Venezuelan and two Brazilian accessions of S.capitata were introgressed into the basic population. Genetioc diversity was further increased by adding seed of four selected accessions of S. macrocephala to the synthetic which had already included three accessions from the basic population. Genetic diversity was futher increased by adding seed of four selected accessions of S. macrocephala to the synthetic which had already included three accessions from the basic population. The composite was advanced through five generations of bulk seed production to improve its stability, synchronise harvest maturity, and primarily to facilitate natural intercrossing among S.capitata genotypes. The multicross population displayed anthracnose-resistance in the presence of susceptible, infected accessions in field trials conducted over the years since its initial synthesis in 1990. |
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Palavras-Chave: |
Anthracnosis. |
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Thesagro: |
Antracnose; Cerrado; Stylosanthes Macrocephala; Variedade Resistente. |
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Thesaurus Nal: |
disease resistance; Stylosanthes capitata. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02223naa a2200253 a 4500
001 1555346
005 2000-08-22
008 1999 bl uuuu u00u1 u #d
100 1 $aGROF, B.
245 $aDevelopment of a multicross cultivar of Stylosanthes spp.
260 $c1999
500 $aGrasslands 2000.
520 $aA synthetic population, referred to as multicross, has been developed from an interspecific mixture of Stylosanthes capitata and S. macrocephala germplasm. This basic population evolved in a farm ing situation subject to uncontrolled, continuuous, heavy grazing. Natual selection and systematically programmed intercrossing among anthacnose-resistant Venezuelan and Brazilian genotypes of S. capitata have played najor roles in the subsequent development of this heterogeneous population. Eight anthracnose-resistant Venezuelan and two Brazilian accessions of S.capitata were introgressed into the basic population. Genetioc diversity was further increased by adding seed of four selected accessions of S. macrocephala to the synthetic which had already included three accessions from the basic population. Genetic diversity was futher increased by adding seed of four selected accessions of S. macrocephala to the synthetic which had already included three accessions from the basic population. The composite was advanced through five generations of bulk seed production to improve its stability, synchronise harvest maturity, and primarily to facilitate natural intercrossing among S.capitata genotypes. The multicross population displayed anthracnose-resistance in the presence of susceptible, infected accessions in field trials conducted over the years since its initial synthesis in 1990.
650 $adisease resistance
650 $aStylosanthes capitata
650 $aAntracnose
650 $aCerrado
650 $aStylosanthes Macrocephala
650 $aVariedade Resistente
653 $aAnthracnosis
700 1 $aFERNANDES, C. D.
700 1 $aALMEIDA, C. B.
700 1 $aSANTOS, A. V. dos
773 $tIn: INTERNATIONAL GRASSLAND CONFERENCE, 18., 1997, Winnipeg and Saskatoon. Proceedings. [S.l.]: Canadian Forage Council/Canadian Society of Agronomy/Canadian Society of Animal Science, 1999.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão; Embrapa Clima Temperado; Embrapa Unidades Centrais. |
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Data corrente: |
03/11/2014 |
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Data da última atualização: |
15/04/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BRITO, G. G. de; SUASSUNA, N. D.; DIOLA, V.; SOFIATTI, V.; DUCATTI, C.; SILVA, E. T. da; MORELLO, C. de L. |
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Afiliação: |
GIOVANI GREIGH DE BRITO, CPACT; NELSON DIAS SUASSUNA, CNPA; VALDIR DIOLA; VALDINEI SOFIATTI, CNPA; CARLOS DUCATTI; EVANDRO TADEU DA SILVA; CAMILO DE LELIS MORELLO, CNPA. |
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Título: |
Carbon isotope fractionation for cotton genotype selection. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 9, p. 673-682, set. 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed‑cotton yield in SHGO, where water deficit was more severe. In this site, the negative correlations found between Δ and fiber percentage indicate an integrative effect of gas exchange on Δ and its association with yield components. As for root robustness and growth kinetic, the GO 05 809 genotype performance contributes to sustain the highest values of Δ found in MONT, where edaphoclimatic conditions were more suitable for cotton. The use of Δ analysis as a phenomic facility can help to select cotton genotypes, in order to obtain plants with higher efficiency for gas exchange and water use. |
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Palavras-Chave: |
Carbon isotope discrimination; Discriminação isotopica do carbono; Fenotipagem; Genetic breeding; Melhoramento genético; Phenotyping. |
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Thesagro: |
Genótipo; Gossypium Hirsutum; Melhoramento Genético Vegetal. |
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Thesaurus NAL: |
Gossypium; Seed cotton. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113681/1/18571-89899-1-PB.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/110882/1/Carbon-isotope.pdf
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Marc: |
LEADER 02322naa a2200325 a 4500
001 2013272
005 2015-04-15
008 2014 bl uuuu u00u1 u #d
100 1 $aBRITO, G. G. de
245 $aCarbon isotope fractionation for cotton genotype selection.
260 $c2014
520 $aThe objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed‑cotton yield in SHGO, where water deficit was more severe. In this site, the negative correlations found between Δ and fiber percentage indicate an integrative effect of gas exchange on Δ and its association with yield components. As for root robustness and growth kinetic, the GO 05 809 genotype performance contributes to sustain the highest values of Δ found in MONT, where edaphoclimatic conditions were more suitable for cotton. The use of Δ analysis as a phenomic facility can help to select cotton genotypes, in order to obtain plants with higher efficiency for gas exchange and water use.
650 $aGossypium
650 $aSeed cotton
650 $aGenótipo
650 $aGossypium Hirsutum
650 $aMelhoramento Genético Vegetal
653 $aCarbon isotope discrimination
653 $aDiscriminação isotopica do carbono
653 $aFenotipagem
653 $aGenetic breeding
653 $aMelhoramento genético
653 $aPhenotyping
700 1 $aSUASSUNA, N. D.
700 1 $aDIOLA, V.
700 1 $aSOFIATTI, V.
700 1 $aDUCATTI, C.
700 1 $aSILVA, E. T. da
700 1 $aMORELLO, C. de L.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 49, n. 9, p. 673-682, set. 2014.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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