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| Registros recuperados: 13 | |
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| Kometter, Roberto F; Universidad Nacional Agraria La Molina; kometter@lamolina01.lamolina.edu.pe; Martinez, Martha; Center for Applied Biodiversity Science, Conservation International; m.martinez@conservation.org; Blundell, Arthur G; EGAT Forest Team, USAID; art.blundell@alum.dartmouth.org; Gullison, Raymond E; Hardner & Gullison Associates; ted@hg-llc.com; Steininger, Marc K; Center for Applied Biodiversity Science, Conservation International; m.steininger@conservation.org; Rice, Richard E; Center for Applied Biodiversity Science, Conservation International; d.rice@conservation.org. |
| Although bigleaf mahogany [Swietenia macrophylla King (Meliaceae)] is the premier timber species of Latin America, its exploitation is unsustainable because of a pattern of local depletion and shifting supply. We surveyed experts on the status of mahogany in Bolivia and Peru, the world's past and present largest exporters. Bolivia no longer has commercially viable mahogany (trees > 60 cm diameter at breast height) across 79% of its range. In Peru, mahogany's range has shrunk by 50%, and, within a decade, a further 28% will be logged out. Approximately 15% of the mahogany range in these two countries is protected, but low densities and illegal logging mean that this overestimates the extent of mahogany under protection. The international community... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Bolivia; Latin America; Peru; Expert survey; Forest conservation; Forest inventories; Forest regeneration; Mahogany; Protected areas; Questionnaire; Range; Sustainable forestry. |
| Ano: 2004 |
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| SCHOTTZ, E. de S.; KALIL FILHO, A. N.; TRACZ, A. L.; KOEHLER, H.; RIBAS, L. L. F.; QUOIRIN, M.. |
| Big-leaf mahogany (Swietenia macrophylla King) is an important species for timber production that is considered the most valuable in the world. For this reason its exploitation is indiscriminate and leads this species to the risk of extinction. Moreover, mahogany is difficult to regenerate naturally and, when used in reforestation programs, plants are severely damaged by the shoot-borer (Hypsipyla grandella Zellar). This work aimed at developing the multiplication stage of micropropagation of Swietenia macrophylla King using juvenile material. After desinfestation, seeds were germinated in MS solid culture medium. Shoot formation from seeds occurred during five months, giving 5.54 nodal segments per seed. These explants were excised, each containing one... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Cytokinins; Mahogany; Micropropagation; Tropical species. |
| Ano: 2007 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/313294 |
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| Registros recuperados: 13 | |
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