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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
05/07/2022 |
Data da última atualização: |
05/07/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MICHELON, T. B.; SANTOS, F. S. dos; BELNIAKI, A. C.; VIEIRA, E. S. N.; PANOBIANCO, M. |
Afiliação: |
THOMAS BRUNO MICHELON, Universidade Federal do Paraná; FELIPE SERRATO DOS SANTOS, Universidade Federal do Paraná; ANDREZA CERIONI BELNIAKI, Universidade Federal do Paraná; ELISA SERRA NEGRA VIEIRA, CNPF; MARISTELA PANOBIANCO, Universidade Federal do Paraná. |
Título: |
Time reduction to evaluate Pinus taeda seeds germination by time-to-event analysis. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Scientia Agricola, v. 79, n. 6, e20210092, 2022. |
DOI: |
https://doi.org/10.1590/1678-992X-2021-0092 |
Idioma: |
Português |
Conteúdo: |
ABSTRACT: The species Pinus taeda is largely used in intensive silviculture worldwide. This species has propagation through seeds, which requires determining seeds viability for their commercialization. The germination test recommended for this species usually requires up to 63 days to provide results on the quality of freshly harvested seeds, delaying commercialization and favoring contamination during the conduction of the test. The authors of this study aimed to establish the developmental stages of P. taeda seedlings to determine a criterion for interpreting the germination test with greater speed and efficiency to obtain results. The seeds were sown in transparent plastic boxes on two sheets of blotting paper and placed in a germinator at 22 °C with constant lighting. Five morphological stages of seedling development were defined with daily counts of the number of normal seedlings for each criterion, distribution in time, and the accumulated percentage of normal seedlings adjusted to time-to-event nonlinear regression. The new interpretation criterion proposed in this study is efficient, and P. taeda seedlings can be considered normal when cotyledon leaves differ by approximately 3 mm between the integument and hypocotyl, reducing the time to conduct the germination test by up to ten days compared to the criterion usually used in the routine analysis of seed laboratories. |
Palavras-Chave: |
Desenvolvimento das plântulas; Nonlinear regression; Physiological quality; Qualidade fisiológica; Regressão não linear; Seedling development stages; Viabilidade. |
Thesaurus Nal: |
Pinaceae; Viability. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1144470/1/ScientiaAgricola-2022PinusTaedaSeedsGermination.pdf
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Marc: |
LEADER 02298naa a2200289 a 4500 001 2144470 005 2022-07-05 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1590/1678-992X-2021-0092$2DOI 100 1 $aMICHELON, T. B. 245 $aTime reduction to evaluate Pinus taeda seeds germination by time-to-event analysis.$h[electronic resource] 260 $c2022 520 $aABSTRACT: The species Pinus taeda is largely used in intensive silviculture worldwide. This species has propagation through seeds, which requires determining seeds viability for their commercialization. The germination test recommended for this species usually requires up to 63 days to provide results on the quality of freshly harvested seeds, delaying commercialization and favoring contamination during the conduction of the test. The authors of this study aimed to establish the developmental stages of P. taeda seedlings to determine a criterion for interpreting the germination test with greater speed and efficiency to obtain results. The seeds were sown in transparent plastic boxes on two sheets of blotting paper and placed in a germinator at 22 °C with constant lighting. Five morphological stages of seedling development were defined with daily counts of the number of normal seedlings for each criterion, distribution in time, and the accumulated percentage of normal seedlings adjusted to time-to-event nonlinear regression. The new interpretation criterion proposed in this study is efficient, and P. taeda seedlings can be considered normal when cotyledon leaves differ by approximately 3 mm between the integument and hypocotyl, reducing the time to conduct the germination test by up to ten days compared to the criterion usually used in the routine analysis of seed laboratories. 650 $aPinaceae 650 $aViability 653 $aDesenvolvimento das plântulas 653 $aNonlinear regression 653 $aPhysiological quality 653 $aQualidade fisiológica 653 $aRegressão não linear 653 $aSeedling development stages 653 $aViabilidade 700 1 $aSANTOS, F. S. dos 700 1 $aBELNIAKI, A. C. 700 1 $aVIEIRA, E. S. N. 700 1 $aPANOBIANCO, M. 773 $tScientia Agricola$gv. 79, n. 6, e20210092, 2022.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
23/02/1996 |
Data da última atualização: |
23/02/1996 |
Autoria: |
LOPES, H. O. da S. |
Título: |
Utilizacao do fosfato de rocha como fonte de fosforo para bovinos. |
Ano de publicação: |
1985 |
Fonte/Imprenta: |
In: EMBRAPA. Plano anual de trabalho 1986. Brasilia: EMBRAPA/PETROFERTIL/[1985]. |
Páginas: |
p.89-90. |
Idioma: |
Português |
Notas: |
Resumo do relatorio do projeto 006/84/0011 da EMBRAPA-CPAC, 1985. Form 12/85. Convenio EMBRAPA/PETROFERTIL. |
Palavras-Chave: |
Mineral nutrients; Supplements. |
Thesagro: |
Bovino; Cerrado; Fosfato de Rocha; Fósforo; Nutrição Animal; Nutriente Mineral; Projeto de Pesquisa; Suplemento Mineral. |
Thesaurus NAL: |
animal nutrition; cattle; phosphorus; research projects; rock phosphate. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00961naa a2200313 a 4500 001 1550910 005 1996-02-23 008 1985 bl uuuu u00u1 u #d 100 1 $aLOPES, H. O. da S. 245 $aUtilizacao do fosfato de rocha como fonte de fosforo para bovinos. 260 $c1985 300 $ap.89-90. 500 $aResumo do relatorio do projeto 006/84/0011 da EMBRAPA-CPAC, 1985. Form 12/85. Convenio EMBRAPA/PETROFERTIL. 650 $aanimal nutrition 650 $acattle 650 $aphosphorus 650 $aresearch projects 650 $arock phosphate 650 $aBovino 650 $aCerrado 650 $aFosfato de Rocha 650 $aFósforo 650 $aNutrição Animal 650 $aNutriente Mineral 650 $aProjeto de Pesquisa 650 $aSuplemento Mineral 653 $aMineral nutrients 653 $aSupplements 773 $tIn: EMBRAPA. Plano anual de trabalho 1986. Brasilia: EMBRAPA/PETROFERTIL/[1985].
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