|
|
Registros recuperados : 163 | |
1. | | AGUIAR, M. O.; LEITE, C. C. C.; VIANA, J. C. C.; MATIAS, H. de B.; SILVA, R. F.; FIGUEIREDO, E. O. Alocação otimizada de torres para detecção de incêndios florestais. In: SIMPÓSIO BRASILEIRO DE PÓS-GRADUAÇÃO EM CIÊNCIAS FLORESTAIS, 9. 2016, Guarapari. Disseminação e aplicação do conhecimento científico e tecnológico nas Ciências Florestais: anais. Alegre, ES: CAUFES, 2016. p. 187-191. Organizadores: Mayra Luiza Marques da Silva, Marcos Vinicius Winkler Caldeira, Mariana Duarte Silva Fonseca, Kallil Chaves Castro. Biblioteca(s): Embrapa Acre. |
| |
2. | | AGUIAR, M. O.; SILVA, G. F. da; MAURI, G. R.; MENDONÇA, A. R. de; SANTANA, C. J. de O.; MARCATTI, G. E.; SILVA, M. L. M. da; SILVA, E. F. da; FIGUEIREDO, E. O.; SILVA, J. P. M.; SILVA, R. F.; SANTOS, J. S.; LAVAGNOLI, G. L.; LEITE, C. C. C. Optimizing forest road planning in a sustainable forest management area in the Brazilian Amazon. Journal of Environmental Management, v. 288, 112332, 2021. Biblioteca(s): Embrapa Acre. |
| |
3. | | AGUIAR, M. O.; SILVA, G. F. da; MAURI, G. R.; MENDONÇA, A. R. de; SILVA, E. V. da; FIGUEIREDO, E. O.; SILVA, J. P. M.; SILVA, V. A. da; SILVA, R. F.; LAVAGNOLI, G. L. Integrated planning of forest exploration infrastructures in an amazonian sustainable forest management area. Forest Ecology and Management, n. 549, 121265, 2023. Biblioteca(s): Embrapa Acre. |
| |
7. | | BRAZ, E. M.; FERREIRA, L. A.; SOUZA, J. M. A. de; SILVA, Z. A. G. P. da G. e; FIGUEIREDO, E. O.; OLIVEIRA, L. C. de. Manejo dos produtos florestais não madeireiros na Floresta Estadual do Antimari, AC. In: SIVIERO, A.; MING, L. C.; SILVEIRA, M.; DALY, D. C.; WALLACE, R. H. (org.). Etnobotânica e botânica econômica do Acre. Rio Branco, AC: Edufac, 2016. cap. 6. p. 96-110. Biblioteca(s): Embrapa Acre. |
| |
8. | | BRAZ, E. M.; FIGUEIREDO, E. O.; FERREIRA, L. A.; OLIVEIRA, L. C. de; GAMA e SILVA, Z. A. G. P. da; SOUZA, J. M. A. de. Manejo dos produtos florestais não madeireiros da Floresta Estadual do Antimary: a busca de um modelo. In: CONGRESSO IBERO-AMERICANO DE PESQUISA E DESENVOLVIMENTO DE PRODUTOS FLORESTAIS, 2.; SEMINÁRIO EM TECNOLOGIA DA MADEIRA E PRODUTOS FLORESTAIS NÃO MADEIRÁVEIS, 1., 2002, Curitiba. Aproveitamento tecnológico da floresta ibero-americana: fonte de suprimento para o mundo: anais. [Curitiba]: Universidade Federal do Paraná: Fundação de Pesquisas Florestais do Paraná, [2002?]. 1 CD-ROM. Biblioteca(s): Embrapa Florestas. |
| |
9. | | BRAZ, E. M.; FIGUEIREDO, E. O.; FERREIRA, L. A.; OLIVEIRA, L. C. de; GAMA e SILVA, Z. A. G. P. da; SOUZA, J. M. A. de. Manejo dos produtos florestais não madeireiros da Floresta Estadual do Antimary: a busca de um modelo. In: CONGRESSO IBERO-AMERICANO DE PESQUISA E DESENVOLVIMENTO DE PRODUTOS FLORESTAIS, 2.; SEMINÁRIO EM TECNOLOGIA DA MADEIRA E PRODUTOS FLORESTAIS NÃO MADEIRÁVEIS, 1., 2002, Curitiba. Aproveitamento tecnológico da floresta ibero-americana: fonte de suprimento para o mundo: anais. Curitiba: Universidade Federal do Paraná: Fundação de Pesquisas Florestais do Paraná, 2002. 15 p. 1 CD-ROM. Biblioteca(s): Embrapa Acre. |
| |
11. | | BRAZ, E. M.; FIGUEIREDO, E. O.; PASSOS, C. A. M. de; MATTOS, P. P. de; OLIVEIRA, L. C. de; RIBAS, L. A.; THAINES, F.; OLIVEIRA, M. V. N. d'. Manejo das florestas naturais da Amazônia: situação atual, avanços e perspectivas. In: SIMPÓSIO BRASIL-ALEMANHA, 4., 2009, Curitiba. Desenvolvimento sustentável. [Curitiba]:CCIBA: UFPR, 2009. 1 p. Biblioteca(s): Embrapa Acre. |
| |
12. | | BRAZ, E. M.; FIGUEIREDO, E. O.; PASSOS, C. A. M.; MATTOS, P. P. de; OLIVEIRA, M. V. N. d'. Manejo de precisão no norte do Estado do Mato Grosso, Rondônia e Acre. In: REUNIÃO TÉCNICA DO PROJETO: Manejo Florestal e Silvicultura de Precisão no Norte do Estado do Mato Grosso, Rondônia e Acre, 1., 2007, Curitiba. Resumos. Colombo: Embrapa Florestas, 2007. 1 CD-ROM. Resumo 01. Biblioteca(s): Embrapa Florestas. |
| |
13. | | BRAZ, E. M.; FIGUEIREDO, E. O.; PASSOS, C. A. M.; MATTOS, P. P. de; OLIVEIRA, M. V. N. d'. Manejo de precisão no norte do Estado do Mato Grosso, Rondônia e Acre. In: REUNIÃO TÉCNICA DO PROJETO: MANEJO FLORESTAL E SILVICULTURA DE PRECISÃO NO NORTE DO ESTADO DE MATO GROSSO, RONDÔNIA E ACRE, 1., 2007, Curitiba. Resumos. Colombo: Embrapa Florestas, 2007. 1 p. 1 CD-ROM. Biblioteca(s): Embrapa Acre. |
| |
14. | | BRAZ, E. M.; MATTOS, P. P. de; FIGUEIREDO, E. O. Manejo de precisão em florestas naturais. In: BERNARDI, A. C. de C.; NAIME, J. de M.; RESENDE, A. V. de; BASSOI, L. H.; INAMASU, R. Y. (Ed.). Agricultura de precisão: resultados de um novo olhar. Brasília, DF: Embrapa, 2014. p. 488-491. CD-ROM. Biblioteca(s): Embrapa Acre; Embrapa Florestas. |
| |
16. | | BRAZ, E. M.; MATTOS, P. P. de; FIGUEIREDO, E. O.; RIBAS, L. A. Otimização da distribuição diamétrica remanescente da espécie Cedrela odorata no estado do Acre, visando o novo ciclo. In: SIMPÓSIO LATINO-AMERICANO SOBRE MANEJO FLORESTAL, 5., 2011, Santa Maria. Sustentabilidade florestal: [anais]. Santa Maria: UFSM, Programa de Pós-Graduação em Engenharia Florestal, 2011. p. 186-193. Biblioteca(s): Embrapa Acre; Embrapa Florestas. |
| |
Registros recuperados : 163 | |
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
25/11/2005 |
Data da última atualização: |
04/07/2018 |
Autoria: |
JORGE, M. H. A. |
Afiliação: |
MARCAL HENRIQUE AMICI JORGE, CNPH. |
Título: |
Germination and characterization of guayule (Parthenium argentatum Gray) seed. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
2005. |
Páginas: |
120 p. |
Idioma: |
Português |
Notas: |
Dissertação Doutorado. -- University of Arizona. |
Conteúdo: |
Guayule (Parthenium argentatum Gray) is a natural rubber producing plant presently being commercialized for production in arid and semi-arid regions of the world. Inconsistent seed (achenes) quality and the lack of methods to discriminate between good and bad seed lots are significant problems, allowing commercial stands to be established only by transplants, reather than by more cost effective direct-seeding. The objective of this study was to investigate why guayule seed and seed lots vary significantly in quality. The laboratory and greenhouse experiments involved separation of seed based on physical attributes (Diameter, color and weight) and the confirmation of internal structures (embryo and endosperm) by x-ray analysis. The effect of different conditioning treatments of seed lots was also tested. Separation of seed by size (diameter) was shown to be less efficient than separation by color. Color was the most effective means of separating heavier and darker (opaque-black and gray color grades) seed, and these seed were confirmed to be filled containing internal structures by x-ray analysis. Germination percentage and rate were greater for seed with these characteristics than for yellow and bright-black seed, which are lighter and predominately partially filled or unfilled. Conditioning treatments used for guayule seed older than two years had no effect on seed germination and emergence percentage or rate. However, differences in germination and emergence were found among lines, therefore, differences among seed lots appear to be due to variation in the number of filled seed. The quality of seed lots was significantly improved when seed were separated bases on color first, then by weight. The separation of good quality seed (filled) from poor quality seed (unfilled) is crucial to lower the costs of stand establishment by direct seeding. Therefore, the quality of seed lots can be improved significantly (higher proportion of filled seed) by separating first by color, then by weight. MenosGuayule (Parthenium argentatum Gray) is a natural rubber producing plant presently being commercialized for production in arid and semi-arid regions of the world. Inconsistent seed (achenes) quality and the lack of methods to discriminate between good and bad seed lots are significant problems, allowing commercial stands to be established only by transplants, reather than by more cost effective direct-seeding. The objective of this study was to investigate why guayule seed and seed lots vary significantly in quality. The laboratory and greenhouse experiments involved separation of seed based on physical attributes (Diameter, color and weight) and the confirmation of internal structures (embryo and endosperm) by x-ray analysis. The effect of different conditioning treatments of seed lots was also tested. Separation of seed by size (diameter) was shown to be less efficient than separation by color. Color was the most effective means of separating heavier and darker (opaque-black and gray color grades) seed, and these seed were confirmed to be filled containing internal structures by x-ray analysis. Germination percentage and rate were greater for seed with these characteristics than for yellow and bright-black seed, which are lighter and predominately partially filled or unfilled. Conditioning treatments used for guayule seed older than two years had no effect on seed germination and emergence percentage or rate. However, differences in germination and emergence were found amo... Mostrar Tudo |
Palavras-Chave: |
Caracterização; Characterization; Germiantion; Seed. |
Thesagro: |
Germinação; Parthenium Argentatum; Semente. |
Thesaurus NAL: |
guayule. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02634nam a2200229 a 4500 001 1811764 005 2018-07-04 008 2005 bl uuuu m 00u1 u #d 100 1 $aJORGE, M. H. A. 245 $aGermination and characterization of guayule (Parthenium argentatum Gray) seed. 260 $a2005.$c2005 300 $a120 p. 500 $aDissertação Doutorado. -- University of Arizona. 520 $aGuayule (Parthenium argentatum Gray) is a natural rubber producing plant presently being commercialized for production in arid and semi-arid regions of the world. Inconsistent seed (achenes) quality and the lack of methods to discriminate between good and bad seed lots are significant problems, allowing commercial stands to be established only by transplants, reather than by more cost effective direct-seeding. The objective of this study was to investigate why guayule seed and seed lots vary significantly in quality. The laboratory and greenhouse experiments involved separation of seed based on physical attributes (Diameter, color and weight) and the confirmation of internal structures (embryo and endosperm) by x-ray analysis. The effect of different conditioning treatments of seed lots was also tested. Separation of seed by size (diameter) was shown to be less efficient than separation by color. Color was the most effective means of separating heavier and darker (opaque-black and gray color grades) seed, and these seed were confirmed to be filled containing internal structures by x-ray analysis. Germination percentage and rate were greater for seed with these characteristics than for yellow and bright-black seed, which are lighter and predominately partially filled or unfilled. Conditioning treatments used for guayule seed older than two years had no effect on seed germination and emergence percentage or rate. However, differences in germination and emergence were found among lines, therefore, differences among seed lots appear to be due to variation in the number of filled seed. The quality of seed lots was significantly improved when seed were separated bases on color first, then by weight. The separation of good quality seed (filled) from poor quality seed (unfilled) is crucial to lower the costs of stand establishment by direct seeding. Therefore, the quality of seed lots can be improved significantly (higher proportion of filled seed) by separating first by color, then by weight. 650 $aguayule 650 $aGerminação 650 $aParthenium Argentatum 650 $aSemente 653 $aCaracterização 653 $aCharacterization 653 $aGermiantion 653 $aSeed
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Pantanal (CPAP) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|