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| Registros recuperados : 84 | |
| 61. |  | OTAVIAN, A. F.; RAKOCEVIC, M.; ASSAD, E. D.; MAZZA, M. H.; PICARELLI, E. V. Modelagem da arquitetura de erva-mate usando software AMAPmod. In: CONGRESSO NACIONAL DE BOTÂNICA, 58., 2007, São Paulo. A botânica no Brasil: pesquisa, ensino e políticas públicas ambientais: resumo. [Porto Alegre]: Sociedade Botânica do Brasil, 2007. Não paginado.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 62. | | RAKOCEVIC, M.; FARIAS, J. R. B.; NEUMAIER, N.; RODRIGUES, T. L. Maquetes 3D de soja para análise de interceptação luminosa. In: CONGRESSO BRASILEIRO DE SOJA, 5.; MERCOSOJA 2009, Goiânia. Resumos... Londrina: Embrapa Soja, 2009. p. 120, trab. 206. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de Castro.| Biblioteca(s): Embrapa Soja. |
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| 63. | | RAKOCEVIC, M.; NEUMAIER, N.; GOUVEIA, W. M. de; FARIAS, J. R. B. Modifications on diurnal heliotropic responses of soybean (Glycine max) leaftlets during a plant growth. In: WORLD SOYBEAN RESEARCH CONFERENCE, 8., 2009, Beijing. Developing a global soy blueprint for a safe secure and sustainable supply: abstracts. Beijing: Chinese Academy of Agricultural Sciences: Institute of Crop Science, 2009. p. 23, ref. O084. WSRC 2009. Editado por Lijuan Qiu, Rongxia Guan, Jian Jin, Qijan Song, Shuntang Guo, Wenbin Li, Yuanchao Wang, Tianfu Han, Xiaobing Liu, Deyue Yu, Lianzhou Jiang, Deliang Peng.| Biblioteca(s): Embrapa Soja. |
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| 64. | | RAKOCEVIC, M.; NEUMAIER, N.; OLIVEIRA, G. M. de; NEPOMUCENO, A. L.; FARIAS, J. R. B. Heliotropic responses of soybean cultivars at three phenological stages and under two water regimes. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 7, p. 661-670, jul. 2010.| Biblioteca(s): Embrapa Soja; Embrapa Unidades Centrais. |
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| 65. | | RAKOCEVIC, M.; NEUMAIER, N.; GOUVEIA, W. M. de; FARIAS, J. R. B.; NEPOMUCENO, A. L. Heliotropismo em soja para simulações de interceptação luminosa e fotossíntese. In: CONGRESSO BRASILEIRO DE SOJA, 5.; MERCOSOJA 2009, Goiânia. Resumos... Londrina: Embrapa Soja, 2009. p.121, trab. 208. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de Castro.| Biblioteca(s): Embrapa Soja. |
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| 67. | | RAKOCEVIC, M.; MEDRADO, M. J. S.; LUCAMBIO, F.; VALDUGA, T. A. Caracterização de crescimento do caule da erva-mate (Ilex paraguariensis St. Hil.) cultivada em dois ambientes luminosos contrastantes. In: CONGRESO SUDAMERICANO DE LA YERBA MATE, 4.; REUNIÓN TÉCNICA DE LA YERBA MATE, 4., EXPOSICIÓN DE AGRONEGOCIOS DE LA YERBA MATE, 2., 2006, Posadas. Actas. Posadas: INTA, 2006. p. 244-249.| Biblioteca(s): Embrapa Florestas. |
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| 69. | | RAKOCEVIC, M.; MULLER, M.; MATSUNAGA, F. T.; NEPOMUCENO, A. L.; FARIAS, J. R. B.; NEUMAIER, N. Stress-induced DREB1A gene changes heliotropism and reduces drought stress in soybean plants under greenhouse conditions. In: IEEE INTERNATIONAL CONFERENCE ON FUNCTIONAL-STRUCTURAL PLANT GROWTH MODELING, SIMULATION, VISUALIZATION AND APPLICATIONS, 2016. Anais... [S. l.]: IEEE, c2016. p. 183-188.| Biblioteca(s): Embrapa Soja. |
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| 71. | | RAKOCEVIC, M.; MULLER, M.; MATSUNAGA, F. T.; NEUMAIER, N.; FARIAS, J. R. B.; NEPOMUCENO, A. L.; FUGANTI-PAGLIARINI, R. Daily heliotropic movements assist gas exchange and productive responses in DREB1A soybean plants under drought stress in the greenhouse. The Plant Journal, v. 96, n. 4, p. 801-814, 2018.| Biblioteca(s): Embrapa Soja. |
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| 72. | | PICARELLI, É. V.; RAKOCEVIC, M.; BONA, C.; MEDRADO, M. J. S.; ASSAD, E. D.; BORSATO, A. V. Distribuição e número de estômatos em folhas da erva-mate cultivada em dois ambientes com luminosidade distinta. In: CONGRESSO NACIONAL DE BOTÂNICA, 58., 2007, São Paulo. A botânica no Brasil: pesquisa, ensino e políticas públicas ambientais: resumo. [Porto Alegre]: Sociedade Botânica do Brasil, 2007.| Biblioteca(s): Embrapa Florestas. |
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| 73. | | PICARELLI, E. V.; RAKOCEVIC, M.; BONA, C.; MEDRADO, M. J. S.; ASSAD, E. D.; BORSATO, A. V. Distribuição e número de estômatos em folhas da erva-mate cultivada em dois ambientes com luminosidade distinta. In: CONGRESSO NACIONAL DE BOTÂNICA, 58., 2007, São Paulo. A botânica no Brasil: pesquisa, ensino e políticas públicas ambientais: resumo. [Porto Alegre]: Sociedade Botânica do Brasil, 2007. Não paginado.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 76. | | PERREIRA, R. C. T.; PAULA, G. F. de; RAKOCEVIC, M; MENDONÇA, T. S.; NAIME, J. M.; MATTOSO, L. E. C. Potencial da língua eletrônica de café aplicada à determinação do amargor da erva-mate chimarrão. In: CONGRESO SUDAMERICANO DE LA YERBA MATE, 4.; REUNIÓN TÉCNICA DE LA YERBA MATE, 4., EXPOSICIÓN DE AGRONEGOCIOS DE LA YERBA MATE, 2., 2006, Posadas. Actas. Posadas: INTA, 2006. não paginado.| Biblioteca(s): Embrapa Instrumentação. |
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| 77. | | PERREIRA, R. C. T.; PAULA, G. F. de; RAKOCEVIC, M; MENDONÇA, T. S.; NAIME, J. M.; MATTOSO, L. E. C. Potencial da língua eletrônica de café aplicada à determinação do amargor da erva-mate chimarrão. In: CONGRESO SUDAMERICANO DE LA YERBA MATE, 4.; REUNIÓN TÉCNICA DE LA YERBA MATE, 4., EXPOSICIÓN DE AGRONEGOCIOS DE LA YERBA MATE, 2., 2006, Posadas. Actas. Posadas: INTA, 2006. p. 42-47.| Biblioteca(s): Embrapa Florestas. |
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| 78. | | RAKOCEVIC, M.; STURION, J. A.; MEDRADO, M. J. S.; LAVORANTI, O. J.; MOSELE, S. H.; VALDUGA, A. T. Propriedades ecofisiológicas e produtivas com ferramenta para melhoramento genético de erva-mate (Ilex paraguariensis St. Hill.). Boletim de Pesquisa Florestal, Colombo, n. 51, p. 109-130, jul./dez. 2005.| Biblioteca(s): Embrapa Florestas. |
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| 79. | | RAKOCEVIC, M.; OTAVIAN, A. F.; ASSAD, E. D.; TERNES, S.; PICARELLI, E. V.; EVANGELISTA, S. R. M. Modelagem da estrutura e da arquitetura de erva-mate. In: CONGRESSO BRASILEIRO DE AGROINFORMÁTICA, 6., 2007, São Pedro, SP. Anais... Campinas: Embrapa Informática Agropecuária, 2007. p. 26-30. SBIAgro 2007. Na publicação: Silvio Roberto de Medeiros Evangelista.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 80. | | RAKOCEVIC, M.; BATISTA, E. R.; PAZIANOTTO, R. A. A.; SCHOLZ, M. B. S.; SOUZA, G. A. R.; CAMPOSTRINI, E.; RAMALHO, J. C. Leaf gas exchange and bean quality fluctuations over the whole canopy vertical profile of Arabic coffee cultivated under elevated CO2. Functional Plant Biology, v. 48, n. 5, p. 469-482, 2021.| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 84 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/05/2009 |
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Data da última atualização: |
25/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
RAKOCEVIC, M.; MEDRADO, M. J. S.; MARTIM, S. F.; ASSAD, E. D. |
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Afiliação: |
Miroslava Rakocevic, Embrapa Informática Agropecuária; Moacir José Sales Medrado, Embrapa Florestas; S. F. Martin, Embrapa Informática Agropecuária/UNICAMP-IMECC; Eduardo Delgado Assad, Embrapa Informática Agropecuária. |
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Título: |
Sexual dimorphism and seasonal changes of leaf gas exchange in the dioecious tree Ilex paraguariensis grown in two contrasted cultivation types. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Annals of Applied Biology, v. 154, p. 291-301, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
Yerba mate´ (Ilex paraguariensis, Aquifoliaceae) is a subtropical, evergreen, dioecious, South American tree. In one preliminary study, it was observed that the functional strategy of yerba mate females, aiming to finish reproductive process, was increased transpiration relative to photosynthetic rates compared with males, on self-shaded leaves. We hypothesised that the long-term gas exchange response of males and females can evolve independently of phenological stage and cultivation type. In this spirit, the primary aim of the study was to analyse the physiological sexual dimorphism of this species, evaluating fluctuations of gas exchanges related to microclimate and phenological stages. A field study was conducted on adult plants of yerba mate´ cultivated in monoculture (MO) and in forest understorey (FUS), and measurements carried out in situ on microclimate and leaf gas exchange parameters. The photosynthetic photon flux density that was attained at leaf level in FUS was reduced roughly 10-fold compared with that in MO. Various leaf age populations were observed during a 2-year period at 2-month intervals and grouped into four categories: young, young-fully-expanded, fully-expanded and old. Young and youngfully- expanded leaves were the most active in photosynthesis. Leaves of female plants showed greater photosynthetic rate than those of male plants, which was expressed on all leaf age categories in MO, but only during vegetative stages previous to flowering and fruit ripening. The photosynthesis of young-fully-expanded leaves of females grown in FUS was superior to males but only during winter growth pause. The stomatal conductance differed in relation to cultivation type and leaf age but did not show the sexual differentiation. Physiological sexual dimorphism in yerba mate is shown to be plastic, responding to environmental conditions. The cost associated to the reproduction of yerba mate´ could be most easily met showing physiological differentiation of both sexes. A higher reproductive investment of females might be compensated for by exhibiting greater leaf photosynthesis than males that occurs in vegetative stages that precede flowering and fruit ripening. MenosYerba mate´ (Ilex paraguariensis, Aquifoliaceae) is a subtropical, evergreen, dioecious, South American tree. In one preliminary study, it was observed that the functional strategy of yerba mate females, aiming to finish reproductive process, was increased transpiration relative to photosynthetic rates compared with males, on self-shaded leaves. We hypothesised that the long-term gas exchange response of males and females can evolve independently of phenological stage and cultivation type. In this spirit, the primary aim of the study was to analyse the physiological sexual dimorphism of this species, evaluating fluctuations of gas exchanges related to microclimate and phenological stages. A field study was conducted on adult plants of yerba mate´ cultivated in monoculture (MO) and in forest understorey (FUS), and measurements carried out in situ on microclimate and leaf gas exchange parameters. The photosynthetic photon flux density that was attained at leaf level in FUS was reduced roughly 10-fold compared with that in MO. Various leaf age populations were observed during a 2-year period at 2-month intervals and grouped into four categories: young, young-fully-expanded, fully-expanded and old. Young and youngfully- expanded leaves were the most active in photosynthesis. Leaves of female plants showed greater photosynthetic rate than those of male plants, which was expressed on all leaf age categories in MO, but only during vegetative stages previous to flowering and fruit r... Mostrar Tudo |
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Palavras-Chave: |
Dimorfismo sexual; Erva mate; Troca gasosa. |
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Thesagro: |
Folha; Ilex Paraguariensis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02891naa a2200217 a 4500
001 1305011
005 2015-02-25
008 2009 bl uuuu u00u1 u #d
100 1 $aRAKOCEVIC, M.
245 $aSexual dimorphism and seasonal changes of leaf gas exchange in the dioecious tree Ilex paraguariensis grown in two contrasted cultivation types.$h[electronic resource]
260 $c2009
520 $aYerba mate´ (Ilex paraguariensis, Aquifoliaceae) is a subtropical, evergreen, dioecious, South American tree. In one preliminary study, it was observed that the functional strategy of yerba mate females, aiming to finish reproductive process, was increased transpiration relative to photosynthetic rates compared with males, on self-shaded leaves. We hypothesised that the long-term gas exchange response of males and females can evolve independently of phenological stage and cultivation type. In this spirit, the primary aim of the study was to analyse the physiological sexual dimorphism of this species, evaluating fluctuations of gas exchanges related to microclimate and phenological stages. A field study was conducted on adult plants of yerba mate´ cultivated in monoculture (MO) and in forest understorey (FUS), and measurements carried out in situ on microclimate and leaf gas exchange parameters. The photosynthetic photon flux density that was attained at leaf level in FUS was reduced roughly 10-fold compared with that in MO. Various leaf age populations were observed during a 2-year period at 2-month intervals and grouped into four categories: young, young-fully-expanded, fully-expanded and old. Young and youngfully- expanded leaves were the most active in photosynthesis. Leaves of female plants showed greater photosynthetic rate than those of male plants, which was expressed on all leaf age categories in MO, but only during vegetative stages previous to flowering and fruit ripening. The photosynthesis of young-fully-expanded leaves of females grown in FUS was superior to males but only during winter growth pause. The stomatal conductance differed in relation to cultivation type and leaf age but did not show the sexual differentiation. Physiological sexual dimorphism in yerba mate is shown to be plastic, responding to environmental conditions. The cost associated to the reproduction of yerba mate´ could be most easily met showing physiological differentiation of both sexes. A higher reproductive investment of females might be compensated for by exhibiting greater leaf photosynthesis than males that occurs in vegetative stages that precede flowering and fruit ripening.
650 $aFolha
650 $aIlex Paraguariensis
653 $aDimorfismo sexual
653 $aErva mate
653 $aTroca gasosa
700 1 $aMEDRADO, M. J. S.
700 1 $aMARTIM, S. F.
700 1 $aASSAD, E. D.
773 $tAnnals of Applied Biology$gv. 154, p. 291-301, 2009.
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