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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
04/11/2020 |
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Data da última atualização: |
05/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOMES, L. R. da R.; MENEZES, C. B. de; SIMON, G. A.; SILVA, A. G. da; BRAZ, A. J. B. P. |
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Afiliação: |
Ludmila Ribeiro da Rocha Gomes, Universidade de Rio Verde; CICERO BESERRA DE MENEZES, CNPMS; Gustavo André Simon, Universidade de Rio Verde; Alessandro Guerra da Silva, Universidade de Rio Verde; Antonio Joaquim Braga Pereira Braz, Universidade de Rio Verde. |
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Título: |
Combining ability of grain sorghum inbred lines grown during of season. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Caatinga, v. 33, n. 4, p. 888-897, 2020. |
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DOI: |
http://dx.doi.org/10.1590/1983-21252020v33n403rc |
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Idioma: |
Inglês |
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Conteúdo: |
The expansion of sorghum as a succession crop, after soybean, has demanded the development of new inbred lines by the breeding programs. The first step in the selection process consists of evaluating the performance per se of the inbred lines or of their hybrid combination. The purpose of this study was to determine the combining ability of sorghum inbred lines under different environment conditions of the crop production areas. The trials were carried out in the second season of 2017, under no-tillage system, in four environments, Rio Verde, Sete Lagoas, Teresina and Sinop. Thirty hybrids, resulting from the crosses of six fertility restoration lines (R) with five male-sterile lines (A) were evaluated. A randomized complete block design with three replicates was used in all experiments. The characteristics evaluated were flowering, plant height and grain yield. The environment significantly influenced the estimates of general and specific combining ability, which suggests that both effects, additive and dominant, are important in the control of these characters. The restoring lines GI.1 and G1.2 contributed to increasing the grain yield of their hybrids by over 650 kg.ha-1 . Among the male-sterile lines, the best for grain yield were GII.1 and GII.4 with contribution above 450 kg.ha-1 in the hybrids in which they participate. The hybrid combinations GI.5xGII.3 and GI.1xGII.2 stood out with potential to obtain high grain yield, associating positive aspects of the other characteristics. MenosThe expansion of sorghum as a succession crop, after soybean, has demanded the development of new inbred lines by the breeding programs. The first step in the selection process consists of evaluating the performance per se of the inbred lines or of their hybrid combination. The purpose of this study was to determine the combining ability of sorghum inbred lines under different environment conditions of the crop production areas. The trials were carried out in the second season of 2017, under no-tillage system, in four environments, Rio Verde, Sete Lagoas, Teresina and Sinop. Thirty hybrids, resulting from the crosses of six fertility restoration lines (R) with five male-sterile lines (A) were evaluated. A randomized complete block design with three replicates was used in all experiments. The characteristics evaluated were flowering, plant height and grain yield. The environment significantly influenced the estimates of general and specific combining ability, which suggests that both effects, additive and dominant, are important in the control of these characters. The restoring lines GI.1 and G1.2 contributed to increasing the grain yield of their hybrids by over 650 kg.ha-1 . Among the male-sterile lines, the best for grain yield were GII.1 and GII.4 with contribution above 450 kg.ha-1 in the hybrids in which they participate. The hybrid combinations GI.5xGII.3 and GI.1xGII.2 stood out with potential to obtain high grain yield, associating positive aspects of the other chara... Mostrar Tudo |
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Palavras-Chave: |
Cruzamentos dialélicos; Genitor. |
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Thesagro: |
Melhoramento Vegetal; Safrinha; Seleção; Sorgo. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1126234/1/Combining-ability-grain.pdf
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Marc: |
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Meio Ambiente. |
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Data corrente: |
06/12/2019 |
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Data da última atualização: |
10/12/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
JUNQUEIRA, L. R.; BARBOSA, L. R.; MACHADO, P.; ZANUNCIO, J. C.; SA, L. A. N. de; WILCKEN, C. F. |
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Afiliação: |
LUIS RENATO JUNQUEIRA, Instituto de Pesquisas e Estudos Florestais; LEONARDO RODRIGUES BARBOSA, CNPF; PATRÍCIA MACHADO, Indústria Brasileira de Árvores; JOSE COLA ZANUNCIO, Universidade Federal de Viçosa; LUIZ ALEXANDRE NOGUEIRA DE SA, CNPMA; CARLOS FREDERICO WILCKEN, Universidade Estadual Paulista. |
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Título: |
Collaborative strategies to reduce the introduction of exotic Eucalyptus pests in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 582. |
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Idioma: |
Inglês
Português |
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Notas: |
Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba. |
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Conteúdo: |
The introduction of exotic pests has increased over time due to the growing traffic of people and goods. Just in the last decade, three new eucalypt pests were introduced in Brazil. Responsibility for biosecurity must be shared between government and productive sector, seeking for prevention or contingency of these invaders, avoiding their dispersion to main productive zones in the country. In this regard, the planted forests sector in Brazil has developed a collaborative work, involving research institutions, productive sector and government. Once well consolidated, cooperative research between academy and forest companies has brought besides productivity gains, new tools for pest management, especially biological control programs development. In addition, the BiCEP (Biological Control for Eucalyptus Pests) project was launched in 2013 as an alliance among research institutes from Australia, Brazil, South Africa and Portugal to share information about management of exotic pests and research about new pests and their natural enemies, providing essential knowledge to prevent new introductions or enable their early detection. The access and relevance understanding of this information by government is essential to improve national biosecurity, role played by sectoral associations. Finally, the establishment of partnerships and approximation among different institutions has generated positive signs for reduction of exotic pest introductions in the long-term. |
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Thesagro: |
Eucalipto; Peste; Praga de Planta; Praga Exótica. |
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Thesaurus NAL: |
Eucalyptus; Pests. |
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Categoria do assunto: |
H Saúde e Patologia
O Insetos e Entomologia |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1116182/1/57184p582.pdf
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1116789/1/RASaLANXXVIUFRO2019p582.pdf
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Marc: |
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Registro original: |
Embrapa Florestas (CNPF) |
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