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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
11/06/2015 |
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Data da última atualização: |
01/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOARES, I. D.; NOGUEIRA, A. C.; KALIL FILHO, A. N.; MIRANDA, R. O. V.; EBLING, A. A. |
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Afiliação: |
Izabele Domingues Soares, UFPR; Antonio Carlos Nogueira, UFPR; ANTONIO NASCIM KALIL FILHO, CNPF; Rodrigo O. V. Miranda, UFPR; Ângelo Augusto Ebling, UFPR. |
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Título: |
Germination behavior of Psidium rufum Dc. seeds at different temperatures, substrates and conditions of light. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Australian Journal of Basic and Applied Sciences, v. 9, n. 7, p. 564-570, Apr. 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
The performance of the germination of each species varies at different temperatures, substrates and sometimes light conditions. Therefore, in the conduct of germination tests in laboratories, the knowledge the influence of these components on the germination of each species is of fundamental importance. Psidium rufum DC. is a species native to Brazil, belonging to the family Myrtaceae, characteristic of Biomes Cerrado and Atlantic Forest. It is a initial secondary species, including used for the restoration of degraded areas, with high survival rates. Knowledge of P. rufum are incipient and literature are rare information about the species and the performance of your germination process. Objective: Therefore, this study aimed to verify the germination behavior of P. rufum seeds at different temperatures, substrates and conditions of presence and absence of light. Results: Analysis of variance revealed a significant interaction (P <0.05) between the substrate and temperature variables, indicating that the seed germination of P. rufum laboratory depends on the temperature and the type of substrate, except for germination percentage in which the effects of the factors studied proved to be independent. When placed in the substrate blotter paper 25 °C, the seeds had higher germination percentage, higher speed of germination, smaller average time and higher average speed of germination. The maximum synchronization of germination (U = 0) in P. rufum was observed of temperature 30 °C, the roll paper substrate, however, was the treatment had the lowest percentage of germination. Considering the distributions of the frequency in the germination of P. rufum, such isothermal patterns used (20, 25 and 30 °C) differ in the number, location and frequency of fashions, where all distributions showed character multimodal. The germination of P. rufum was lower in the dark, revealing preferred positive photoblastic. Conclusion: The best results for the germination test were obtained with blotter paper substrate at 25 °C. The light influence the germination of P. rufum, with the species considered as the preferred positive photoblastic. MenosThe performance of the germination of each species varies at different temperatures, substrates and sometimes light conditions. Therefore, in the conduct of germination tests in laboratories, the knowledge the influence of these components on the germination of each species is of fundamental importance. Psidium rufum DC. is a species native to Brazil, belonging to the family Myrtaceae, characteristic of Biomes Cerrado and Atlantic Forest. It is a initial secondary species, including used for the restoration of degraded areas, with high survival rates. Knowledge of P. rufum are incipient and literature are rare information about the species and the performance of your germination process. Objective: Therefore, this study aimed to verify the germination behavior of P. rufum seeds at different temperatures, substrates and conditions of presence and absence of light. Results: Analysis of variance revealed a significant interaction (P <0.05) between the substrate and temperature variables, indicating that the seed germination of P. rufum laboratory depends on the temperature and the type of substrate, except for germination percentage in which the effects of the factors studied proved to be independent. When placed in the substrate blotter paper 25 °C, the seeds had higher germination percentage, higher speed of germination, smaller average time and higher average speed of germination. The maximum synchronization of germination (U = 0) in P. rufum was observed of temperature 30 °... Mostrar Tudo |
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Palavras-Chave: |
Conditions of light; Forest seeds; Luz; Psidium rufum; Substrate; Substrato. |
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Thesagro: |
Germinação; Semente; Temperatura. |
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Thesaurus Nal: |
germination; temperature. |
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Categoria do assunto: |
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Marc: |
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Embrapa Florestas (CNPF) |
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| 6. |  | RIZZARDI, M. A.; BOLLER, W.; DALLOGLIO, R. Distribuição de plantas de milho, na linha de semeadura, e seus efeitos nos componentes de produção. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 29, n. 8, p. 1231-1236. ago. 1994. Título em inglês: Planting pattern of maize in row sowing and its effects on yield components.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 10. | | RIZZARDI, M. A.; FLECK, N. G.; RIBOLDI, J.; AGOSTINETTO, D. Ajuste de modelo para quantificar o efeito de plantas daninhas e época de semeadura no rendimento de soja. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 1, p. 35-43, jan. 2003 Título e inglês: Adjustment of model to quantify the effect of weeds and sowing time on soybean yield.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 18. | | KARAM, D.; CRUZ, M. B. da; RIZZARDI, M. A. Manejo de plantas daninhas na cultura do milho. In: CONGRESSO NACIONAL DE MILHO E SORGO, 27.; SIMPOSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 3.; WORKSHOP SOBRE MANEJO E ETIOLOGIA DA MANCHA BRANCA DO MILHO, 2008, Londrina. Agroenergia, produção de alimentos e mudanças climáticas: desafios para milho e sorgo: trabalhos e palestras. [Londrina]: IAPAR; [Sete Lagoas]: Embrapa Milho e Sorgo, 2008. 1 CD-ROM. Palestra.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 43 | |
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