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| 1. |  | FROSI, G.; ARAÚJO, F. T. de; LIMA, S. C. B. da S.; VITA, A. C. A. de M.; PANDOLFI, V; SANTOS, M. G.; MORGANTE, C. V.; MELO, N. F. de; ISEPPON, A. M. B. Bioquímica foliar e radicular de Stylosanthes scabra Vogel (Fabaceae) submetida ao déficit hídrico. In: CONGRESSO NACIONAL DE BOTÂNICA, 67., 2016, Vitória. Conectando diversidade, relevando o desconhecido. Brasília, DF: Sociedade Botânica do Brasil, 2016.| Biblioteca(s): Embrapa Semiárido. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
11/11/2019 |
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Data da última atualização: |
11/11/2019 |
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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: |
LEAO, P. C. de S.; MELO, N. F. de; NUNES, B. T. G.; SILVA, E. R. da. |
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Afiliação: |
PATRICIA COELHO DE SOUZA LEAO, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; B. T. G. Nunes; E. R. da Silva. |
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Título: |
In-vitro embryo rescue in table-grape breeding for semiarid tropical regions of Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Acta Horticulturae, n. 1248, p. 179-185, 2019. |
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DOI: |
10.17660/ActaHortic.2019.1248.26 |
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Idioma: |
Inglês |
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Notas: |
Edição do Proceedings of the XII International Conference on Grapevine Breeding and Genetics, Bordeaux, France, aug. 2019. |
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Conteúdo: |
Seedlessness in commercial table-grape cultivars is caused by stenospermocarpy, which results in abortion of the embryo before complete development. The technique of embryo rescue and culture in vitro, before abortion, allows crosses between seedless cultivars as parents, with the main advantage of increasing the frequency of seedless individuals in the progeny. The present work aimed to evaluate the efficiency of table-grape breeding by controlled hybridizations and embryo rescue in the development of new table-grape cultivars for tropical semiarid conditions in the northeast of Brazil. The crosses were carried out in experimental fields of Embrapa Semiárido in Petrolina, PE, and Juazeiro, BA, in the São Francisco River Valley, between 2011 and 2017. During this period, 689 inflorescences were pollinated, resulting in 55.9% fruitfulness, of which 11,685 seed traces were obtained and inoculated in vitro. It was possible to rescue 16.9% of immature embryos, obtaining 56.1% success in seedling germination. The responses observed depended strongly on the genotypes used in the crosses. Genotypes ?CG 351? and ?Marroo Seedless? used as female parents showed the best results for fruitfulness and the formation and germination of embryos, which means that the number of seedlings obtained by the embryo rescue technique is correlated with the genotype used as parent. Also noteworthy is the progress in results obtained in 2015 and 2016 compared with the period 2011-2014, when ?Marroo Seedless? was used as a female parent in crosses using pollen of ?A1105?, ?A Dona?, ?BRS Linda?, ?BRS Isis?, ?BRS Clara?, ?BRS Vitória?, ?CG 351?, ?Feal? and ?Jupiter?, obtaining high rates of fruitfulness, embryo rescue and embryo germination in all combinations. MenosSeedlessness in commercial table-grape cultivars is caused by stenospermocarpy, which results in abortion of the embryo before complete development. The technique of embryo rescue and culture in vitro, before abortion, allows crosses between seedless cultivars as parents, with the main advantage of increasing the frequency of seedless individuals in the progeny. The present work aimed to evaluate the efficiency of table-grape breeding by controlled hybridizations and embryo rescue in the development of new table-grape cultivars for tropical semiarid conditions in the northeast of Brazil. The crosses were carried out in experimental fields of Embrapa Semiárido in Petrolina, PE, and Juazeiro, BA, in the São Francisco River Valley, between 2011 and 2017. During this period, 689 inflorescences were pollinated, resulting in 55.9% fruitfulness, of which 11,685 seed traces were obtained and inoculated in vitro. It was possible to rescue 16.9% of immature embryos, obtaining 56.1% success in seedling germination. The responses observed depended strongly on the genotypes used in the crosses. Genotypes ?CG 351? and ?Marroo Seedless? used as female parents showed the best results for fruitfulness and the formation and germination of embryos, which means that the number of seedlings obtained by the embryo rescue technique is correlated with the genotype used as parent. Also noteworthy is the progress in results obtained in 2015 and 2016 compared with the period 2011-2014, when ?Marroo Se... Mostrar Tudo |
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Palavras-Chave: |
Cultura de tecidos; Semiário; Uva sem semente. |
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Thesagro: |
Biotecnologia; Melhoramento Genético Vegetal; Uva. |
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Thesaurus NAL: |
Grapes; Seedless varieties. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02686naa a2200277 a 4500
001 2114150
005 2019-11-11
008 2019 bl uuuu u00u1 u #d
024 7 $a10.17660/ActaHortic.2019.1248.26$2DOI
100 1 $aLEAO, P. C. de S.
245 $aIn-vitro embryo rescue in table-grape breeding for semiarid tropical regions of Brazil.$h[electronic resource]
260 $c2019
500 $aEdição do Proceedings of the XII International Conference on Grapevine Breeding and Genetics, Bordeaux, France, aug. 2019.
520 $aSeedlessness in commercial table-grape cultivars is caused by stenospermocarpy, which results in abortion of the embryo before complete development. The technique of embryo rescue and culture in vitro, before abortion, allows crosses between seedless cultivars as parents, with the main advantage of increasing the frequency of seedless individuals in the progeny. The present work aimed to evaluate the efficiency of table-grape breeding by controlled hybridizations and embryo rescue in the development of new table-grape cultivars for tropical semiarid conditions in the northeast of Brazil. The crosses were carried out in experimental fields of Embrapa Semiárido in Petrolina, PE, and Juazeiro, BA, in the São Francisco River Valley, between 2011 and 2017. During this period, 689 inflorescences were pollinated, resulting in 55.9% fruitfulness, of which 11,685 seed traces were obtained and inoculated in vitro. It was possible to rescue 16.9% of immature embryos, obtaining 56.1% success in seedling germination. The responses observed depended strongly on the genotypes used in the crosses. Genotypes ?CG 351? and ?Marroo Seedless? used as female parents showed the best results for fruitfulness and the formation and germination of embryos, which means that the number of seedlings obtained by the embryo rescue technique is correlated with the genotype used as parent. Also noteworthy is the progress in results obtained in 2015 and 2016 compared with the period 2011-2014, when ?Marroo Seedless? was used as a female parent in crosses using pollen of ?A1105?, ?A Dona?, ?BRS Linda?, ?BRS Isis?, ?BRS Clara?, ?BRS Vitória?, ?CG 351?, ?Feal? and ?Jupiter?, obtaining high rates of fruitfulness, embryo rescue and embryo germination in all combinations.
650 $aGrapes
650 $aSeedless varieties
650 $aBiotecnologia
650 $aMelhoramento Genético Vegetal
650 $aUva
653 $aCultura de tecidos
653 $aSemiário
653 $aUva sem semente
700 1 $aMELO, N. F. de
700 1 $aNUNES, B. T. G.
700 1 $aSILVA, E. R. da
773 $tActa Horticulturae$gn. 1248, p. 179-185, 2019.
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