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Registro Completo |
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Biblioteca(s): |
Embrapa Acre; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
10/09/2014 |
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Data da última atualização: |
06/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUARINO, E. de S. G.; SCARIOT, A. O. |
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Afiliação: |
ERNESTINO DE SOUZA GOMES GUARINO, CPAF-AC; ALDICIR OSNI SCARIOT, CENARGEN. |
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Título: |
Direct seeding of dry forest tree species in abandoned pastures: effects of grass canopy and seed burial on germination. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Ecological Research, v. 29, n. 3, p. 473-482, May 2014. |
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ISSN: |
0912-3814 (impresso)/1440-1703 (online) |
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DOI: |
10.1007/s11284-014-1143-4 |
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Idioma: |
Inglês |
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Conteúdo: |
Natural tree regeneration in abandoned pastures can be hampered by various biotic and abiotic filters, including seed removal and predation. We tested the effects of maintenance and removal of grass and seed deposition (buried and unburied) on seed germination of 12 tree species in dry forest pastures. We obtained evidence supporting the hypothesis that seeds attain higher germination under a grass canopy than on bare ground. For most species, grass cover provides safety from seed predators and facilitates germination by providing a suitable microclimate with soil humidity similar to the forest. The hypothesis that buried seeds attain higher germination was not supported by our data. Predation and removal of unburied seeds ranged from 0 to 77 % and, alone or together, were the major causes of nongermination. Direct seeding is a promising technique for revegetation of recently abandoned pastures in areas originally covered by tropical dry forests. The high germination rate of seeds deposited on the ground and under grass reduces costs during initial restoration stages, potentially facilitating the spread and use of this technique. |
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Palavras-Chave: |
Bosques secos; Degradação do solo; Degradación de la tierra; Direct sowing; Facilitation; Floresta seca; Germinación de las semillas; Pastizales; Regeneración natural; Restoration; Semeadura direta; Siembra directa. |
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Thesagro: |
Cobertura do solo; Floresta; Pastagem; Poder germinativo; Regeneração natural; Semente. |
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Thesaurus Nal: |
Direct seeding; Dry forests; germination; Land degradation; Natural regeneration; Pastures; Seed germination; seed predation. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122499/1/25252.pdf
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Marc: |
LEADER 02537naa a2200469 a 4500
001 1998986
005 2021-07-06
008 2014 bl uuuu u00u1 u #d
022 $a0912-3814 (impresso)/1440-1703 (online)
024 7 $a10.1007/s11284-014-1143-4$2DOI
100 1 $aGUARINO, E. de S. G.
245 $aDirect seeding of dry forest tree species in abandoned pastures$beffects of grass canopy and seed burial on germination.$h[electronic resource]
260 $c2014
520 $aNatural tree regeneration in abandoned pastures can be hampered by various biotic and abiotic filters, including seed removal and predation. We tested the effects of maintenance and removal of grass and seed deposition (buried and unburied) on seed germination of 12 tree species in dry forest pastures. We obtained evidence supporting the hypothesis that seeds attain higher germination under a grass canopy than on bare ground. For most species, grass cover provides safety from seed predators and facilitates germination by providing a suitable microclimate with soil humidity similar to the forest. The hypothesis that buried seeds attain higher germination was not supported by our data. Predation and removal of unburied seeds ranged from 0 to 77 % and, alone or together, were the major causes of nongermination. Direct seeding is a promising technique for revegetation of recently abandoned pastures in areas originally covered by tropical dry forests. The high germination rate of seeds deposited on the ground and under grass reduces costs during initial restoration stages, potentially facilitating the spread and use of this technique.
650 $aDirect seeding
650 $aDry forests
650 $agermination
650 $aLand degradation
650 $aNatural regeneration
650 $aPastures
650 $aSeed germination
650 $aseed predation
650 $aCobertura do solo
650 $aFloresta
650 $aPastagem
650 $aPoder germinativo
650 $aRegeneração natural
650 $aSemente
653 $aBosques secos
653 $aDegradação do solo
653 $aDegradación de la tierra
653 $aDirect sowing
653 $aFacilitation
653 $aFloresta seca
653 $aGerminación de las semillas
653 $aPastizales
653 $aRegeneración natural
653 $aRestoration
653 $aSemeadura direta
653 $aSiembra directa
700 1 $aSCARIOT, A. O.
773 $tEcological Research$gv. 29, n. 3, p. 473-482, May 2014.
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Embrapa Acre (CPAF-AC) |
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| 59. |  | NAKASU, E. T.; CIAMPI, A. Y.; SALOMÃO, A. N.; SEVILHA, A. C.; VIEIRA, D.; SCARIOT, A. Aplicação de marcadores microssatélites em Amburana cearensis e Cedrella fissilis na definição de estratégias de conservação. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 10., 2005, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2005. p. 177.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 110 | |
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