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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
08/06/2009 |
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Data da última atualização: |
26/08/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FALEIRO, F. G.; PINTO, A. C. Q.; CORDEIRO, M. C. R.; ANDRADE, S. R. M.; RAMOS, V. H. V.; BELLON, G.; DIAS, J. N. |
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Afiliação: |
Fábio Gelape Faleiro, CPAC; Alberto Carlos Queiroz Pinto; Maria Cristina Rocha Cordeiro, CPAC; Solange Rocha Monteiro Andrade, CPAC; Victor Hugo Vargas Ramos; Graciele Bellon; J. N. Dias. |
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Título: |
Genetic variability of mango cultivars developed by Embrapa Cerrados breeding program using RAPD markers. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Acta Horticulturae, Leuven, n. 820, p. 177-181, abr. 2009. |
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Idioma: |
Inglês |
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Notas: |
Edição do Proceedings of the 8 International Mango Symposium, Sun City, South Africa, Abril, 2009. |
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Conteúdo: |
The Brazilian mango commercial production is highly concentrated on USA cultivar Tommy Atkins. Embrapa Cerrados has been working on mango breeding program through intervarietal hybridization to develop cultivars adapted to the Savanna and Northeast Brazilian region conditions. The objective of this work was to evaluate the genetic variability of Alfa, Roxa, Beta and Lita mango cultivars developed by Embrapa Cerrados breeding program. USA cultivars Tommy Atkins, Haden, Palmer and Keitt were used as control. The genomic DNA of each cultivar was extracted and amplified using 21 decamer primers to obtain RAPD molecular markers. The markers were transformed into a binary matrix data to estimate genetic distances among varieties and to perform cluster analysis. It was obtained 306 molecular markers, from which 66,3% were polymorphic. The genetic distances among USA cultivars ranged from 0,101 to 0,237 and among Brazilian cultivars ranged from 0,114 and 0,238. The lowest genetic distance was detected between cultivars Tommy Atkins and Keitt (0,101). Cluster analysis showed a very close group of the Tommy Atkins, Palmer and Keitt cultivars. These results emphasize the importance of the Brazilian mango cultivars as alternative to enlarge the genetic base of the cultivars commercially grown in Brazil. |
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Thesagro: |
DNA; Manga; Mangifera Indica; Marcador Molecular. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02115naa a2200253 a 4500
001 1558233
005 2010-08-26
008 2009 bl uuuu u00u1 u #d
100 1 $aFALEIRO, F. G.
245 $aGenetic variability of mango cultivars developed by Embrapa Cerrados breeding program using RAPD markers.
260 $c2009
500 $aEdição do Proceedings of the 8 International Mango Symposium, Sun City, South Africa, Abril, 2009.
520 $aThe Brazilian mango commercial production is highly concentrated on USA cultivar Tommy Atkins. Embrapa Cerrados has been working on mango breeding program through intervarietal hybridization to develop cultivars adapted to the Savanna and Northeast Brazilian region conditions. The objective of this work was to evaluate the genetic variability of Alfa, Roxa, Beta and Lita mango cultivars developed by Embrapa Cerrados breeding program. USA cultivars Tommy Atkins, Haden, Palmer and Keitt were used as control. The genomic DNA of each cultivar was extracted and amplified using 21 decamer primers to obtain RAPD molecular markers. The markers were transformed into a binary matrix data to estimate genetic distances among varieties and to perform cluster analysis. It was obtained 306 molecular markers, from which 66,3% were polymorphic. The genetic distances among USA cultivars ranged from 0,101 to 0,237 and among Brazilian cultivars ranged from 0,114 and 0,238. The lowest genetic distance was detected between cultivars Tommy Atkins and Keitt (0,101). Cluster analysis showed a very close group of the Tommy Atkins, Palmer and Keitt cultivars. These results emphasize the importance of the Brazilian mango cultivars as alternative to enlarge the genetic base of the cultivars commercially grown in Brazil.
650 $aDNA
650 $aManga
650 $aMangifera Indica
650 $aMarcador Molecular
700 1 $aPINTO, A. C. Q.
700 1 $aCORDEIRO, M. C. R.
700 1 $aANDRADE, S. R. M.
700 1 $aRAMOS, V. H. V.
700 1 $aBELLON, G.
700 1 $aDIAS, J. N.
773 $tActa Horticulturae, Leuven$gn. 820, p. 177-181, abr. 2009.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Acre. Para informações adicionais entre em contato com cpafac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
13/02/2014 |
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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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Circulação/Nível: |
A - 1 |
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Autoria: |
ROCHWELL, C. A.; KAINER, K. A.; OLIVEIRA, M. V. N. d'.; STAUDHAMMER, C. L.; BARALOTO, C. |
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Afiliação: |
Cara A. Rockwell, University of Florida; Karen A. Kainer, University of Florida; MARCUS VINICIO NEVES D OLIVEIRA, CPAF-AC; Christina L. Staudhammer, University of Alabama; Christopher Baraloto, INRA/French Guiana. |
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Título: |
Logging in bamboo-dominated forests in southwestern Amazonia: caveats and opportunities for smallholder forest management. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Forest Ecology and Management, Eveleigh, v. 315, n. 1, p. 202-210, Mar. 2014. |
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ISSN: |
0378-1127 |
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DOI: |
dx.doi.org/10.1016/j.foreco.2013.12.022 |
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Idioma: |
Inglês |
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Conteúdo: |
Guadua sarcocarpa and Guadua weberbaueri (Poaceae: Bambuseae) have a negative influence on tree regeneration and recruitment in bamboo-dominated forests of southwestern Amazonia. The lack of advanced regeneration and sparse canopy in this forest type present a considerable challenge for developing sustainable timber management plans. We conducted field studies in the Porto Dias Agroextractive Settlement Project in Acre, Brazil to assess influences of logging in bamboo-dominated forest sites. Taxonomic composition, stand structure, aboveground biomass, commercial timber volume, and commercial tree seedling and bamboo culm density were compared between five logged vs. unlogged sites in different landholdings, using modified 0.5 ha Gentry plots. No differences in taxonomic composition, aboveground biomass, adult and juvenile stem density, or woody seedling and bamboo culm density were detected between paired logged and unlogged sites. Commercial timber volume, however, was reduced by almost two-thirds in logged plots, suggesting that long-term timber management goals in this forest type are compromised since so few future crop trees remained onsite. Our findings indicate that in order to maximize local management objectives, community forest managers must approach logging in bamboo-dominated forests with caution. We suggest an integration of non-timber forest product extraction with low harvest intensity and low-impact logging, tending of natural regeneration, and diversification of commercial species. MenosGuadua sarcocarpa and Guadua weberbaueri (Poaceae: Bambuseae) have a negative influence on tree regeneration and recruitment in bamboo-dominated forests of southwestern Amazonia. The lack of advanced regeneration and sparse canopy in this forest type present a considerable challenge for developing sustainable timber management plans. We conducted field studies in the Porto Dias Agroextractive Settlement Project in Acre, Brazil to assess influences of logging in bamboo-dominated forest sites. Taxonomic composition, stand structure, aboveground biomass, commercial timber volume, and commercial tree seedling and bamboo culm density were compared between five logged vs. unlogged sites in different landholdings, using modified 0.5 ha Gentry plots. No differences in taxonomic composition, aboveground biomass, adult and juvenile stem density, or woody seedling and bamboo culm density were detected between paired logged and unlogged sites. Commercial timber volume, however, was reduced by almost two-thirds in logged plots, suggesting that long-term timber management goals in this forest type are compromised since so few future crop trees remained onsite. Our findings indicate that in order to maximize local management objectives, community forest managers must approach logging in bamboo-dominated forests with caution. We suggest an integration of non-timber forest product extraction with low harvest intensity and low-impact logging, tending of natural regeneration, and diversificati... Mostrar Tudo |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocdiental; Bambués; Cultivo a pequeña escala; Explotación forestal; Guadua sarcocarpa; Guadua weberbaueri; Manejo florestal; Projeto de Assentamento Agroextrativista Porto Dias; Regeneración natural; Western Amazon. |
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Thesagro: |
Bambu; Extração da madeira; Floresta; Pequeno produtor; Regeneração natural. |
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Thesaurus NAL: |
Bamboos; Logging; Natural regeneration; Small-scale farming. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02906naa a2200445 a 4500
001 1979899
005 2021-07-06
008 2014 bl uuuu u00u1 u #d
022 $a0378-1127
024 7 $adx.doi.org/10.1016/j.foreco.2013.12.022$2DOI
100 1 $aROCHWELL, C. A.
245 $aLogging in bamboo-dominated forests in southwestern Amazonia$bcaveats and opportunities for smallholder forest management.$h[electronic resource]
260 $c2014
520 $aGuadua sarcocarpa and Guadua weberbaueri (Poaceae: Bambuseae) have a negative influence on tree regeneration and recruitment in bamboo-dominated forests of southwestern Amazonia. The lack of advanced regeneration and sparse canopy in this forest type present a considerable challenge for developing sustainable timber management plans. We conducted field studies in the Porto Dias Agroextractive Settlement Project in Acre, Brazil to assess influences of logging in bamboo-dominated forest sites. Taxonomic composition, stand structure, aboveground biomass, commercial timber volume, and commercial tree seedling and bamboo culm density were compared between five logged vs. unlogged sites in different landholdings, using modified 0.5 ha Gentry plots. No differences in taxonomic composition, aboveground biomass, adult and juvenile stem density, or woody seedling and bamboo culm density were detected between paired logged and unlogged sites. Commercial timber volume, however, was reduced by almost two-thirds in logged plots, suggesting that long-term timber management goals in this forest type are compromised since so few future crop trees remained onsite. Our findings indicate that in order to maximize local management objectives, community forest managers must approach logging in bamboo-dominated forests with caution. We suggest an integration of non-timber forest product extraction with low harvest intensity and low-impact logging, tending of natural regeneration, and diversification of commercial species.
650 $aBamboos
650 $aLogging
650 $aNatural regeneration
650 $aSmall-scale farming
650 $aBambu
650 $aExtração da madeira
650 $aFloresta
650 $aPequeno produtor
650 $aRegeneração natural
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocdiental
653 $aBambués
653 $aCultivo a pequeña escala
653 $aExplotación forestal
653 $aGuadua sarcocarpa
653 $aGuadua weberbaueri
653 $aManejo florestal
653 $aProjeto de Assentamento Agroextrativista Porto Dias
653 $aRegeneración natural
653 $aWestern Amazon
700 1 $aKAINER, K. A.
700 1 $aOLIVEIRA, M. V. N. d'.
700 1 $aSTAUDHAMMER, C. L.
700 1 $aBARALOTO, C.
773 $tForest Ecology and Management, Eveleigh$gv. 315, n. 1, p. 202-210, Mar. 2014.
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Embrapa Acre (CPAF-AC) |
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