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| 2. |  | PAES, J. B.; SANTOS, G. C. dos; MELO, R. R. de; LIMA, C. R. de; NICOLAU SOBRINHO, W. Efeito da inversão no tratamento de moirões submetidos ao método de substituição da seiva. Ciência Florestal, Santa Maria, v. 24, n. 1, p. 211-221, jan./mar. 2014.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 4 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Unidades Centrais. |
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Data corrente: |
30/05/2006 |
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Data da última atualização: |
08/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GONÇALVES, J. F. de C.; SANTOS JÚNIOR, U. M. dos; SILVA, J. F. da; ARRUDA, M. R. de; BONATES, L. C. de M.; FERNANDES, A. V. |
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Afiliação: |
José Francisco de Carvalho Gonçalves, Inpa; Ulysses Moreira dos Santos Júnior, Inpa; José Ferreira da Silva, Ufam; Murilo Rodrigues de Arruda, CPAA; Luiz Carlos de Matos Bonates, Inpa; Andreia Varmes Fernandes, Inpa.; MURILO RODRIGUES DE ARRUDA, CPAA. |
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Título: |
Physiological and anatomical characteristics of leaves of two clones of guarana. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 3, p. 393-398, mar. 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to analyze gas exchange, photosynthetic characteristics, photochemical efficiency of photosystem II and anatomical characteristics of young plant leaves of two guarana (Paullinia cupana) clones (BRS-CG372RC and BRS-CG611RL) growing under open field. The variables of gas exchange and fluorescence of chlorophyll a were evaluated in mature leaves. The values of photosynthesis and transpiration found for BRS-CG372RC were 27% greater and 80% lesser than values found for BRS-CG611RL, respectively. The values of stomatal conductance found for the clones BRS-CG372RC and BRS-CG611RL were in the order of 224 and 614 mmol mm-2 s-1, respectively. The values of photorespiration, rate of carboxylation and rate electron transport were greater in BRS-CG372RC. The clone BRS-CG372RC exhibited stomatal density 26% greater than BRS-CG611RL. However, the area of ostiolar opening was 42% greater in BRS-CG611RL. The values of the water use efficiency in BRS-CG372RC were 134% greater than in BRS-CG611RL. High stomatal density and low stomatal conductance can be important characteristics in the selection of the clones with a good ability to assimilate carbon and optimize the use of water. |
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Palavras-Chave: |
anatomia de estômatos; eficiência fotoquímica do fotossistema II; eficiência no uso da água; electron transport rate; photochemical efficiency of photosystem II; stomatal anatomy; taxa de transporte de elétrons. |
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Thesagro: |
Clone; Fisiologia; Folha; Fotossíntese; Guaraná; Paullinia Cupana. |
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Thesaurus NAL: |
photosynthesis; water use efficiency. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/64785/1/PAB4195.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/35498/1/41n03a04.pdf
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Marc: |
LEADER 02339naa a2200361 a 4500
001 1678215
005 2019-11-08
008 2006 bl uuuu u00u1 u #d
100 1 $aGONÇALVES, J. F. de C.
245 $aPhysiological and anatomical characteristics of leaves of two clones of guarana.
260 $c2006
520 $aThe objective of this work was to analyze gas exchange, photosynthetic characteristics, photochemical efficiency of photosystem II and anatomical characteristics of young plant leaves of two guarana (Paullinia cupana) clones (BRS-CG372RC and BRS-CG611RL) growing under open field. The variables of gas exchange and fluorescence of chlorophyll a were evaluated in mature leaves. The values of photosynthesis and transpiration found for BRS-CG372RC were 27% greater and 80% lesser than values found for BRS-CG611RL, respectively. The values of stomatal conductance found for the clones BRS-CG372RC and BRS-CG611RL were in the order of 224 and 614 mmol mm-2 s-1, respectively. The values of photorespiration, rate of carboxylation and rate electron transport were greater in BRS-CG372RC. The clone BRS-CG372RC exhibited stomatal density 26% greater than BRS-CG611RL. However, the area of ostiolar opening was 42% greater in BRS-CG611RL. The values of the water use efficiency in BRS-CG372RC were 134% greater than in BRS-CG611RL. High stomatal density and low stomatal conductance can be important characteristics in the selection of the clones with a good ability to assimilate carbon and optimize the use of water.
650 $aphotosynthesis
650 $awater use efficiency
650 $aClone
650 $aFisiologia
650 $aFolha
650 $aFotossíntese
650 $aGuaraná
650 $aPaullinia Cupana
653 $aanatomia de estômatos
653 $aeficiência fotoquímica do fotossistema II
653 $aeficiência no uso da água
653 $aelectron transport rate
653 $aphotochemical efficiency of photosystem II
653 $astomatal anatomy
653 $ataxa de transporte de elétrons
700 1 $aSANTOS JÚNIOR, U. M. dos
700 1 $aSILVA, J. F. da
700 1 $aARRUDA, M. R. de
700 1 $aBONATES, L. C. de M.
700 1 $aFERNANDES, A. V.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 41, n. 3, p. 393-398, mar. 2006.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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