| |
|
|
| Registros recuperados : 13 | |
| 11. |  | MOUTINHO, P.; NEPSTAD, D. C.; DIAS-FILHO, M.; RAY, D.; SOLORZANO, L.; CARDINOT, G.; TOHVER, I. Drought effects on net primary productivity and its allocation in an east-central Amazon forest: results from a throughfall exclusion experiment. In: CONFERÊNCIA CIENTÍFICA INTERNACIONAL DO LBA, 2., 2002, Manaus. Resumos. Manaus: LBA, 2002. Não paginado.| Biblioteca(s): Embrapa Amazônia Oriental. |
|    |
| 12. | | DAVIDSON, E.; LEFEBVRE, P. A.; BRANDO, P. M.; RAY, D. M.; TRUMBORE, S. E.; SOLORZANO, L. A.; FERREIRA, J. N.; BUSTAMANTE, M. M. da C.; NEPSTAD, D. C. Carbon inputs and water uptake in deep soils of an Eastern Amazon forest. Forest Science, v. 57, n. 1, p. 51-58, Feb. 2011.| Biblioteca(s): Embrapa Amazônia Oriental. |
|  |
| 13. | | NEPSTAD, D. C.; MOUTINHO, P.; DIAS-FILHO, M. B.; DAVIDSON, E.; CARDINOT, G.; MARKEWITZ, D.; FIGUEIREDO, R.; VIANNA, N.; CHAMBERD, J.; RAY, D.; GUERREIROS, J. B.; LEFEBVRE, P.; STERNBERG, L.; MOREIRA, M.; BARROS, L.; ISHIDA, F. Y.; TOHLVER, I.; BELK, E.; KALIF, K.; SCHWALBE, K. The effects of partial throughfall exclusion on canopy processes, aboveground production, and biogeochemistry of an Amazon forest. Journal of Geophysical Research, v. 107, n. D20, 2002.| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| Registros recuperados : 13 | |
|
|
|
 | 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: |
30/06/2006 |
|
Data da última atualização: |
10/03/2017 |
|
Autoria: |
JORGE, M. H. A.; VEATCH-BLOHM, M. E.; RAY, D. T.; FOSTER, M. A. |
|
Afiliação: |
Embrapa pantanal (Corumbá, MS); Division of Horticultural and Crop Sciences, University of Arizona (Tucson, USA); The Texas A & M University System (Texas, USA). |
|
Título: |
Guayule seed germination under different conditioning treatments. |
|
Ano de publicação: |
2006 |
|
Fonte/Imprenta: |
Industrial Crops and Products, v. 24, p. 60-65, 2006. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Guayule (Parthenium argentatum Gray), a latex producting shrub from northern Mexico and southwestern Texas, has been considered a biable alternative commercial crop for arid lands throughout the world. Stand establishment by direct seeding has been ineffectual because of problems with seed germination. Seed dormancy has been ascribed as one of the main reason for low germination. Special seed treatments, such as physical and chemical conditioning, have been devised to overcome embryo and seed coat dormancy, thereby improving germination and emergence. However, the treatments described in the literature have not ben as effective as expected, and many of tehm are costly and time consuming. The objective of this study was to determine the effects of nine preconditioning treatments on the percentage and rate of termination and emergence, and seedling fresh weight. Three-year-old seed of line AZ-101, AZ-3, and N9-3 were analyzed with X-ray to determine the seed lot quality. The results showed differences in quality (defined as seeds containing embryos and endosperm) among the three lines; however, no differences were found for percentage and rate of germination and emergence, and seeding fresh weight among the nine treatments. These results suggest that in older seed lots seed quality is of greater importance in determining germination and emergence than conditioning treatments. |
|
Palavras-Chave: |
Seed conditioning. |
|
Thesagro: |
Parthenium Argentatum; Semente. |
|
Thesaurus NAL: |
direct seeding; guayule; new crops; seed quality. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02039naa a2200241 a 4500
001 1811385
005 2017-03-10
008 2006 bl --- 0-- u #d
100 1 $aJORGE, M. H. A.
245 $aGuayule seed germination under different conditioning treatments.
260 $c2006
520 $aGuayule (Parthenium argentatum Gray), a latex producting shrub from northern Mexico and southwestern Texas, has been considered a biable alternative commercial crop for arid lands throughout the world. Stand establishment by direct seeding has been ineffectual because of problems with seed germination. Seed dormancy has been ascribed as one of the main reason for low germination. Special seed treatments, such as physical and chemical conditioning, have been devised to overcome embryo and seed coat dormancy, thereby improving germination and emergence. However, the treatments described in the literature have not ben as effective as expected, and many of tehm are costly and time consuming. The objective of this study was to determine the effects of nine preconditioning treatments on the percentage and rate of termination and emergence, and seedling fresh weight. Three-year-old seed of line AZ-101, AZ-3, and N9-3 were analyzed with X-ray to determine the seed lot quality. The results showed differences in quality (defined as seeds containing embryos and endosperm) among the three lines; however, no differences were found for percentage and rate of germination and emergence, and seeding fresh weight among the nine treatments. These results suggest that in older seed lots seed quality is of greater importance in determining germination and emergence than conditioning treatments.
650 $adirect seeding
650 $aguayule
650 $anew crops
650 $aseed quality
650 $aParthenium Argentatum
650 $aSemente
653 $aSeed conditioning
700 1 $aVEATCH-BLOHM, M. E.
700 1 $aRAY, D. T.
700 1 $aFOSTER, M. A.
773 $tIndustrial Crops and Products$gv. 24, p. 60-65, 2006.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
