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| Registros recuperados: 10 | |
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| Silva, Ariadne Josiane Castoldi; Carpanezzi, Antonio Aparecido; Lavoranti, Osmir José. |
| Erythrina crista-galli L., Fabaceae, a medium-sized N-fixing tree, is native to flooding soils of several Brazilian biomes. Its cultivation has interest for ornamental and ecological restoration purposes. Information on seed coat dormancy is conflicting and inexact, therefore the present work aimed to verify it and to define methods for its overcoming. The study was composed by two experiments, using seed lots collected in different dates. Seeds were subjected to inducing germination treatments by chemical scarification (ACS commercial sulfuric acid, d=1,84 g/cm³) and thermic scarification (hot water). Results demonstrated high germination under acid scarification (up to 95%) and inferior when submitted to thermic scarification (reaching up to 43%);... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erythrina crista-galli L.; Fabaceae; A medium-sized N-fixing tree; Is native to flooding soils of several Brazilian biomes. Its cultivation has interest for ornamental and ecological restoration purposes. Information on seed coat dormancy is conflicting a Corticeira-do-banhado; Escarificação; Germinação; Armazenamento. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/206 |
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| Lima, Edson Alves de; Silva, Helton Damin da; Lavoranti, Osmir José. |
| Eucalyptus benthamii has shown to be the most proeminent specie for regions with frost incidence. The objective of this work was to classify selected Eucalyptus benthamii trees for breeding by importance ordening dendrometric and energetic characteristics, useful for this work 91 disks of DBH were collected, from three plantations at Guarapuava municipality, Parana state, with geographical coordinates 25º 23’ 26’’ S e 51º 27’ 15” E and 1,120 m high. Wood basic density, volume, mass, superior calorific power, energertic density and energetic potential were evaluated. Charcoal yield, condensed and non-condensable gases, fixed carbon, volatiles, ashes, superior calorific power and energetic potential were also evaluated. From the measured characteristics, at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioenergy; Forest biomass; Frost. Bioenergia; Biomassa florestal; Geada.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/192 |
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| Rakocevic, Miroslava; Sturion, José Alfredo; Medrado, Moacir José Sales; Lavoranti, Osmir José; Mosele, Sérgio Henrique; Valduga, Alice Tereza. |
| The aims of this study were to estimate the genetic parameters for 59 half-sib progenies of maté under runing for formation, and to evaluate the ecophysiological properties for four progenies (P15, P18, P41 e 47) and two controls (P61 and P62), components of one maté breeding experiment combining rovenances and progenies, established in Erechim, RS. The ecophysiological properties (stomatal onductance (gs) - mol m-2s-1, net photosynthesis (A) - μmol CO2 m-2s-1, and transpiration (E) -mmol H2O - s-1) were measured during one year in five epochs (from September 2002 to August 2003). The variance omponents, genetic and phenotypic parameters and genetic values (for data of foliar mass collected in runing of formation) were obtained using a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic value; Heritability; Photosynthesis; Stomatal conductance; Transpiration. Condutância estomática; Fotossíntese; Herdabilidade; Transpiração; Valor genético.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/229 |
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| Santos, Paulo Eduardo Telles dos; Lavoranti, Osmir José; Salante, Laurindo. |
| By the assessment of ten technological traits of eucalypt wood for sawn timber and energy purposes,it was developed a multivariate statistical procedure in order to determine the sequence of logs to be sampled, in such a way to represent all statistical variation contained within the tree and, accordingly, to establish the appropriate sampling intensity. In the present work, it was used a total of 40 logs from four trees of Eucalyptus grandis provenance Concórdia-SC aged 18 years. By using principal components regression analysis and stepwise selection techniques, it was showed that only two logs, corresponding to the first (0.05 m to 2.60 m) and fourth (8.85 m to 11.40 m) positions into the tree, contained 99.2 % of the total variation detected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eucalypt; Sawn timber; Sampling methodology; Multivariate regression. Eucalipto; Madeira serrada; Metodologia de amostragem; Regressão multivariada. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/130 |
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| Bognola, Itamar Antonio; Dedecek, Renato Antonio; Lavoranti, Osmir José; Higa, Antonio Rioyei. |
| Foi estudado o rendimento de Pinus taeda L. em função de propriedades físico-hídricas do solo. O trabalho foi baseado em um mapeamento detalhado de solos, na escala 1:10.000, em duas áreas da empresa Battistella Florestal, localizadas nos estados de Santa Catarina e Paraná. Os dados dendrométricos utilizados foram coletados em parcelas de inventário florestal contínuo (PIFCs), em um povoamento com área de 2.252 ha. Foram selecionados 28 PIFC’s com árvores de crescimentos diferentes, separadas em dois grupos com idades de 12 e 13/14 anos. Os sítios com árvores de maior idade e de solos com maior teor de argila, em média, apresentaram maior incremento médio anual das árvores. Houve correlações positivas entre o volume de madeira das árvores, a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macroporosidade; Porosidade de aeração; Textura do solo; Volume de madeira. Soil macroporosity; Aeration porosity; Soil texture; Wood volume.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/90 |
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| Rakocevic, Miroslava; Medrado, Moacir José Sales; Lavoranti, Osmir José. |
| A preliminary study was developed on leaf gas exchange properties of males and females in yerbamate (Ilex paraguariensis St. Hil.), planted in open growth conditions. The photosynthesic photon flux density (PPFD) on leaf level, stomatal conductance (gs), net photosynthesis (A), transpiration (E), and leaf temperature (Tl) was measured during the biennial production period: in the summer during the fruit ripening when there is a pause in its growth (January, February), spring sprouting (November) and autumn sprouting (March, Jun). The measurements have been taken in different tree crown positions (inside, exterior and tips). First indications of sex physiological dimorphism in yerba-mate have been shown. Conductance was superior on female plants, with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Light; Photosynthesis; Stomatal conductance; Temperature; Transpiration Condutância estomática; Fotossíntese; Luz; Temperatura; Transpiração. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/127 |
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| Neves, Edinelson José Maciel; Santos, Álvaro Figueredo dos; Lavoranti, Osmir José; Martins, Emerson Gonçalves. |
| The coast region of Paraná State, Brazil, has a great potential for growing of pupunha trees aiming palm heart production due to climate conditions. There were around one million pupunha trees planted at small farmers area, totalizing about 200 ha, in this region by the end of 2004. This fact confirms the specie as a sustainable and economicaly viable alternative for small farmers as long as the natural stands of juçara (Euterpe edulis) are raryng. This paper aimed to evaluate the palm heart production, at ages 24 and 39 months after planting, from plants growing instands varyng on plant density and soil class and considering processing as heart, ring and chopped. The experiment was set up in two areas located along the Alexandra-Matinhos Road (km 7 and km... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bactris gasipaes; Paraná; Brazil Pupunha; Palmito; Paraná. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/227 |
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| Rakocevic, Miroslava; Medrado, Moacir José Sales; Lavoranti, Osmir José; Valduga, Alice Teresa. |
| The aim of this study was to assess the taste of beverage prepared from yerba-mate (Ilex paraguariensis) leaves, originated from male and female plants, by taking into account leaf gas exchange and the content of macro-and-trace-elements. Ecophysiological, chemical and sensorial properties were evaluated in one of the sprouting phases and in two fruit ripening phases. Male and female plants did not differ in fresh and dry matter production per plant, nor in the content of micro- and trace elements. However, female plants showed higher leaf net photosynthesis (A) and stomatal conductance (gs) than male plants. The beverage prepared with male plant leaves was less bitter than that prepared with female plant leaves, especially when leaves from the branch tips... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macronutrients; Photosynthesis; Productivity; Stomatal conductance; Bitterness; Trace elements Amargo; Condutância estomática; Fotossíntese; Macro-elementos; Micro-elementos; Produtividade.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/131 |
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| Registros recuperados: 10 | |
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