Annual variations in seed yield and implications for multiple use of crabwood

Detalhes bibliográficos
Autor(a) principal: Tonini, Helio
Data de Publicação: 2017
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1472
Resumo: The objective of this study was to evaluate the annual variation in seed yield of crabwood, and discuss implications for multiple use management of the species. Data were collected in a forest area in the southern of Roraima State in a permanent plot of 9 ha (300 m x 300 m) with a natural population of crabwood. Seed production was monitored of 115 trees during four years. Seed yield varied among years. May to July was the period of bigger yield. Few trees (22.6%) concentrated the bigger part of seeds yield (80.7%) and the most productive trees had diameter at 1.30 m above ground level between 40 cm - 70 cm. Therefore we recommend 70 cm as minimum cutting diameter for wood exploitation. For sustainable crabwood seed management we recommend to restrict seed collection from the most productive trees and only during the period of maximum seed dispersal.
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spelling Annual variations in seed yield and implications for multiple use of crabwoodVariações na produção de sementes e recomendações para o manejo de uso múltiplo da andirobeiraCarapa guianensisOilseedsForest managementCarapa guianensisSementes oleaginosasManejo florestalThe objective of this study was to evaluate the annual variation in seed yield of crabwood, and discuss implications for multiple use management of the species. Data were collected in a forest area in the southern of Roraima State in a permanent plot of 9 ha (300 m x 300 m) with a natural population of crabwood. Seed production was monitored of 115 trees during four years. Seed yield varied among years. May to July was the period of bigger yield. Few trees (22.6%) concentrated the bigger part of seeds yield (80.7%) and the most productive trees had diameter at 1.30 m above ground level between 40 cm - 70 cm. Therefore we recommend 70 cm as minimum cutting diameter for wood exploitation. For sustainable crabwood seed management we recommend to restrict seed collection from the most productive trees and only during the period of maximum seed dispersal.O objetivo deste trabalho foi avaliar a variação anual da produção de frutos da andirobeira em floresta nativa e as suas implicações para o manejo florestal de uso múltiplo. Os dados foram coletados em floresta nativa, no sul do Estado de Roraima em parcela permanente de 9 ha (300 m x 300 m) onde a produção de sementes de 115 árvores foi monitorada durante quatro anos. Observou-se que a produção de sementes da população variou entre os anos de observação, sendo maio a julho o período de maior produção. Poucos indivíduos (22,6%) concentraram a maior parte da produção de sementes (80,7%) e as árvores mais produtivas apresentaram diâmetro a 1,30 m do solo entre 40 a 70 cm. Recomenda-se a adoção de um diâmetro mínimo de corte de 70 cm em planos de manejo madeireiros na região em estudo. Para o controle na coleta das sementes recomenda-se restringir a coleta aos indivíduos mais produtivos e somente no período de máxima frutificação.Embrapa Florestas2017-12-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/147210.4336/2017.pfb.37.92.1472Pesquisa Florestal Brasileira; v. 37 n. 92 (2017): out./dez.; 563-568Pesquisa Florestal Brasileira; Vol. 37 No. 92 (2017): out./dez.; 563-5681983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1472/617https://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessTonini, Helio2019-01-02T18:39:24Zoai:pfb.cnpf.embrapa.br/pfb:article/1472Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2019-01-02T18:39:24Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Annual variations in seed yield and implications for multiple use of crabwood
Variações na produção de sementes e recomendações para o manejo de uso múltiplo da andirobeira
title Annual variations in seed yield and implications for multiple use of crabwood
spellingShingle Annual variations in seed yield and implications for multiple use of crabwood
Tonini, Helio
Carapa guianensis
Oilseeds
Forest management
Carapa guianensis
Sementes oleaginosas
Manejo florestal
title_short Annual variations in seed yield and implications for multiple use of crabwood
title_full Annual variations in seed yield and implications for multiple use of crabwood
title_fullStr Annual variations in seed yield and implications for multiple use of crabwood
title_full_unstemmed Annual variations in seed yield and implications for multiple use of crabwood
title_sort Annual variations in seed yield and implications for multiple use of crabwood
author Tonini, Helio
author_facet Tonini, Helio
author_role author
dc.contributor.author.fl_str_mv Tonini, Helio
dc.subject.por.fl_str_mv Carapa guianensis
Oilseeds
Forest management
Carapa guianensis
Sementes oleaginosas
Manejo florestal
topic Carapa guianensis
Oilseeds
Forest management
Carapa guianensis
Sementes oleaginosas
Manejo florestal
description The objective of this study was to evaluate the annual variation in seed yield of crabwood, and discuss implications for multiple use management of the species. Data were collected in a forest area in the southern of Roraima State in a permanent plot of 9 ha (300 m x 300 m) with a natural population of crabwood. Seed production was monitored of 115 trees during four years. Seed yield varied among years. May to July was the period of bigger yield. Few trees (22.6%) concentrated the bigger part of seeds yield (80.7%) and the most productive trees had diameter at 1.30 m above ground level between 40 cm - 70 cm. Therefore we recommend 70 cm as minimum cutting diameter for wood exploitation. For sustainable crabwood seed management we recommend to restrict seed collection from the most productive trees and only during the period of maximum seed dispersal.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1472
10.4336/2017.pfb.37.92.1472
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1472
identifier_str_mv 10.4336/2017.pfb.37.92.1472
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1472/617
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 37 n. 92 (2017): out./dez.; 563-568
Pesquisa Florestal Brasileira; Vol. 37 No. 92 (2017): out./dez.; 563-568
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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