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| 33. |  | FIGUEIREDO, F. J. C.; ROCHA NETO, O. G. da. Estudos comparativos de plantas de pimenta longa (Piper hispidinervum C. DC.), de aspectos vegetativos extremos, para a extração de óleo essencial e quantificação de safrol. In: WORKSHOP DE ENCERRAMENTO DO PROJETO DE DESENVOLVIMENTO DE TECNOLOGIAS PARA PRODUÇÃO DE SAFROL A PARTIR DE PIMENTA LONGA (Piper hispidinervum), 1., 2001, Rio Branco, AC. Anais... Rio Branco, AC: Embrapa Acre, 2001. p. 74-79. il. (Embrapa Acre. Documentos, 75).| Biblioteca(s): Embrapa Amazônia Oriental. |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
10/08/2015 |
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Data da última atualização: |
19/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
LOPES, M. J. dos S.; DIAS FILHO, M. B.; MENEZES NETO, M. A.; CRUZ, E. D. |
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Afiliação: |
Monyck Jeane dos Santos Lopes, UFRA; MOACYR BERNARDINO DIAS FILHO, CPATU; Marco Antônio Menezes Neto, UFPA; ENIEL DAVID CRUZ, CPATU. |
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Título: |
Morphophysiological behavior and cambial activity in seedlings of two Amazonian tree species under shade. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Botany, v. 2015, 2015. Article ID 863968. |
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DOI: |
http://dx.doi.org/10.1155/2015/863968 |
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Idioma: |
Inglês |
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Conteúdo: |
Variations in light intensity can lead to important anatomical and morphophysiological changes in plants. Aiming to increase knowledge about the Amazonian tree species, this study examines the influence of shade on the cambial activity and development of Parkia gigantocarpa Ducke and Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby seedlings. Seedlings of the two species were grown in a nursery under four shade intensities (treatments): full sun, low, moderate, and high shade (resp., 0%, 23%, 67%, and 73% of shade, or 2000, 1540, 660, and 540 µmol·m−2·s−1) obtained with polyethylene screens. We measured plant height, stem diameter, biomass production, stomatal conductance (), transpiration (E), photosynthesis (A), and cambial activity (CA) (xylem, cambium, and phloem). Also, we calculated the Dickson Quality Index (DQI). The highest values of biomass production, , E, A, and DQI, were found under full sun, in P. gigantocarpa, and under low shade intensity in S. parahyba. In both species high shade intensity reduced CA. We concluded that the CA and the physiological and morphological attributes work together, explaining the radial growth and increasing seedlings quality, which optimized efficient seedling production under full sun, in P. gigantocarpa, and under low shade intensity in S. parahyba. |
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Palavras-Chave: |
Comportamento morfofisiológico; Espécie florestal. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127650/1/863968.pdf
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Marc: |
LEADER 02038naa a2200205 a 4500
001 2021648
005 2022-05-19
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1155/2015/863968$2DOI
100 1 $aLOPES, M. J. dos S.
245 $aMorphophysiological behavior and cambial activity in seedlings of two Amazonian tree species under shade.$h[electronic resource]
260 $c2015
520 $aVariations in light intensity can lead to important anatomical and morphophysiological changes in plants. Aiming to increase knowledge about the Amazonian tree species, this study examines the influence of shade on the cambial activity and development of Parkia gigantocarpa Ducke and Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby seedlings. Seedlings of the two species were grown in a nursery under four shade intensities (treatments): full sun, low, moderate, and high shade (resp., 0%, 23%, 67%, and 73% of shade, or 2000, 1540, 660, and 540 µmol·m−2·s−1) obtained with polyethylene screens. We measured plant height, stem diameter, biomass production, stomatal conductance (), transpiration (E), photosynthesis (A), and cambial activity (CA) (xylem, cambium, and phloem). Also, we calculated the Dickson Quality Index (DQI). The highest values of biomass production, , E, A, and DQI, were found under full sun, in P. gigantocarpa, and under low shade intensity in S. parahyba. In both species high shade intensity reduced CA. We concluded that the CA and the physiological and morphological attributes work together, explaining the radial growth and increasing seedlings quality, which optimized efficient seedling production under full sun, in P. gigantocarpa, and under low shade intensity in S. parahyba.
650 $aAmazonia
653 $aComportamento morfofisiológico
653 $aEspécie florestal
700 1 $aDIAS FILHO, M. B.
700 1 $aMENEZES NETO, M. A.
700 1 $aCRUZ, E. D.
773 $tJournal of Botany$gv. 2015, 2015. Article ID 863968.
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