Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 220
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Effects of Allelochemicals from Ficus microcarpaon Chlorella pyrenoidosa BABT
Jiang,Zhongyang; Peiyong,Guo; Chang,Cheinchi; Gao,Lili; Li,Shixiong; Wan,Jinjin.
This study was performed in order to isolate and identify unknown allelochemicals from Ficus microcarpa, and to investigate the inhibitory to bloom-forming of green alga Chlorella pyrenoidosa. Through gradient elution, fraction C2, whose inhibition of alga growth in diverse extracts was the strongest was shown to cause significant reductions of maximum quantum yield, as well as electron transport rates of C. pyrenoidosa. The study data also showed that the increase of fraction C2 concentration decreased the activity of total superoxide dismutase (SOD), but increased the activities of catalase (CAT) and malondialdehyde (MDA) content. These results demonstrate that the active fraction C2 not only induced the photoinhibition or photodamage of PSII reaction...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allelochemical; Phenols; Photosynthesis; Ficus microcarpa; Chlorella pyrenoidosa.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400595
Imagem não selecionada

Imprime registro no formato completo
Regulation of the expression of NADP-malic enzyme by UV-B, red and far-red light in maize seedlings BJMBR
Casati,P.; Drincovich,M.F.; Edwards,G.E.; Andreo,C.S..
The induction of nicotinamide adenine dinucleotide phosphate-malic enzyme (NADP-ME) in etiolated maize (Zea mays) seedlings by UV-B and UV-A radiation, and different levels of photosynthetically active radiation (PAR, 400-700 nm) was investigated by measuring changes in activity, protein quantity and RNA levels as a function of intensity and duration of exposure to the different radiations. Under low levels of PAR, exposure to UV-B radiation but not UV-A radiation for 6 to 24 h caused a marked increase in the enzyme levels similar to that observed under high PAR in the absence of UV-B. UV-B treatment of green leaves following a 12-h dark period also caused an increase in NADP-ME expression. Exposure to UV-B radiation for only 5 min resulted in a rapid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: C4 photosynthesis; NADP-malic enzyme; UV-B radiation; Photosynthesis; Red light; Far-red light.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001000002
Imagem não selecionada

Imprime registro no formato completo
Physiological response of Cucurbita pepo var. pepo mycorrhized by Sonoran desert native arbuscular fungi to drought and salinity stresses BJM
Harris-Valle,Citlalli; Esqueda,Martín; Gutiérrez,Aldo; Castellanos,Alejandro E.; Gardea,Alfonso A.; Berbara,Ricardo.
ABSTRACT Plants response to symbiosis with arbuscular mycorrhizal fungi (AMF) under water stress is important to agriculture. Under abiotic stress conditions native fungi are more effective than exotics in improving plant growth and water status. Mycorrhization efficiency is related to soil fungi development and energy cost-benefit ratio. In this study, we assessed the effect on growth, water status and energy metabolism of Cucurbita pepo var. pepo when inoculated with native AMF from the Sonoran desert Mexico (mixed isolate and field consortium), and compared with an exotic species from a temperate region, under drought, low and high salinity conditions. Dry weights, leaf water content, water and osmotic potentials, construction costs, photochemistry and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glomus; Pacispora; Water status; Construction cost; Photosynthesis.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000100045
Imagem não selecionada

Imprime registro no formato completo
Effects of n-propyl gallate on photosynthesis and physiological parameters in Dunaliella salina are affected by stressful conditions Braz. J. Plant Physiol.
Einali,Alireza; Shariati,Mansour.
We studied the effects of n-propyl gallate, which is a plastid terminal oxidase inhibitor involved in chlororespiration, on photosynthesis and physiological parameters in Dunaliella salina grown under different salinities and under low or high irradiance using chlorophyll a fluorescence transient measurements and pigment analysis. The inhibitor up to 1 mM had an additive significant effect on the photosynthetic efficiency in the cell suspensions grown under low salinity and irradiance. However, in the presence of high n-propyl gallate concentration (4 mM), there was a negative effect on all physiological aspects. In contrast, this high concentration of the inhibitor could enhance efficiency of electron transport and growth parameters under high irradiance....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll fluorescence; Dunaliella salina; Light intensity; Photosynthesis; Salt stress.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000300006
Imagem não selecionada

Imprime registro no formato completo
The chlorophyll a fluorescence as an indicator of the temperature stress in the leaves of Prunus persica Braz. J. Plant Physiol.
Martinazzo,Emanuela Garbin; Ramm,Aline; Bacarin,Marcos Antonio.
Plants growing in temperate regions are often exposed to stress conditions caused by high temperatures. Photosynthesis is one of the metabolic processes most sensitive to high temperature stress, and it is often inhibited before other cellular functions. Using peach leaf disks, we studied the transient chlorophyll a fluorescence along with the gas exchanges at temperatures of 25 (control) 30, 35, 40 and 45°C in the dark for a period of 30 minutes. Temperatures above 35°C caused significant changes in the transient fluorescence of chlorophyll a, including an increase in the initial fluorescence (F0), a decrease in maximum fluorescence values (F M) and the appearance of K and L bands. The values of the net assimilation rate decreased as the temperature...
Tipo: Info:eu-repo/semantics/article Palavras-chave: High temperature; Photosynthesis; Prunus persica.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000400002
Imagem não selecionada

Imprime registro no formato completo
Effects of flooding and shading on growth and gas exchange of Vochysia divergens Pohl (Vochysiaceae) of invasive species in the Brazilian Pantanal Braz. J. Plant Physiol.
Dalmolin,Ândrea Carla; Dalmagro,Higo José; Lobo,Francisco de Almeida; Antunes Junior,Mario Zortéa; Ortíz,Carmen Eugenia Rogríguez; Vourlitis,George Louis.
Vochysia divergens Pohl (commonly known as cambara) is a pioneer tree species that is native to the Amazon Basin but has been invading the seasonally flooded wetlands of the Brazilian Pantanal, forming monospecific communities. The physiological aspects associated with cambara invasion, including the effects of flooding and shading on growth and leaf gas exchange, are unknown but may shed light on why cambara is able to invade this novel habitat so rapidly. Thus, we conducted a manipulative experiment to quantify the effects of shading and flooding on the growth, gas exchange and leaf nutrient content of V. divergens saplings. Based on previous research we hypothesized that (1) experimental flooding would have no effect on the growth and gas exchange of V....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cambara; Physiological stress; Photosynthesis; Plant ecophysiology; Stomatal conductance; Tropical wetlands.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000200001
Imagem não selecionada

Imprime registro no formato completo
Carbon isotope composition and leaf anatomy as a tool to characterize the photosynthetic mechanism of Artemisia annua L. Braz. J. Plant Physiol.
Marchese,José Abramo; Broetto,Fernando; Ming,Lin Chau; Ducatti,Carlos; Rodella,Roberto Antonio; Ventrella,Marília Contin; Gomes,Greice Daiane Rodrigues; Franceschi,Lúcia de.
Leaves of Artemisia annua L. are a plentiful source of artemisinin, a drug with proven effectiveness against malaria. The aim of this study was to classify the photosynthetic mechanism of A. annua through studies of the carbon isotope composition (delta 13C) and the leaf anatomy. A. annua presented a delta 13C value of - 31.76 ± 0.07, which characterizes the plants as a typical species of the C3 photosynthethic mechanism, considering that the average delta 13C values for C3 and C4 species are -28 and -14, respectively. The leaf anatomy studies were consistent with the delta 13C results, where, in spite of the existence of parenchymatic cells forming a sheath surrounding the vascular tissue, the cells do not contain chloroplasts or starch. This...
Tipo: Info:eu-repo/semantics/article Palavras-chave: C3 and C4 plants; Isotope discrimination; Kranz anatomy; Photosynthesis.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000100016
Imagem não selecionada

Imprime registro no formato completo
High temperature effects on the response of photosynthesis to light in sweet orange plants infected with Xylella fastidiosa Braz. J. Plant Physiol.
Ribeiro,Rafael Vasconcelos; Machado,Eduardo Caruso; Oliveira,Ricardo Ferraz de; Pimentel,Carlos.
The objective of this study was to evaluate the high temperature effects on the response of photosynthesis to light in sweet orange plants infected with Xylella fastidiosa. This vascular bacterium is the causal agent of the citrus variegated chlorosis that causes severe economical losses to the Brazilian citrus industry. The responses of the photosynthetic oxygen evolution and the parameters related to chlorophyll a fluorescence to the increase in light intensity were evaluated at 35ºC and 45ºC in both healthy and infected leaf discs. The increase in temperature affected the photosynthetic apparatus of both healthy and infected plants, although infected plants showed higher photochemical sensitivity at the higher temperature (e.g. in the potential quantum...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll fluorescence; Citrus sinensis; Light response curve; Photosynthesis; Temperature; Xylella fastidiosa.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202003000200004
Imagem não selecionada

Imprime registro no formato completo
Leaf heliotropism in Styrax camporum Pohl from the Brazilian cerrado: distinct gas exchange and leaf structure, but similar leaf temperature and water relations Braz. J. Plant Physiol.
Habermann,Gustavo; Machado,Silvia R.; Guimarães,Vandeir F.; Rodrigues,João D..
Styrax camporum is a common shrub species from the cerrado regions of São Paulo State, Brazil. Although its leaves do not have a morphologically delimited pulvinus, the apical leaves are oriented parallel to the sun (paraheliotropic leaves), most notably around noon. Horizontal leaves at the base of shoots are oriented perpendicular to the sun's rays (diaheliotropic leaves). The ecophysiological significance of this is not fully understood. We investigated how paraheliotropism influences daily CO2 assimilation (A) and other gas exchange rates, water relations, leaf temperature (Tl), and how these relate to leaf structure as assessed by anatomical leaf descriptions. Paraheliotropic leaves had greater A and stomatal conductance (g s), which led to greater...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian savanna; Ecophysiology; Gas exchange; Leaf movements; Leaf temperature; Photosynthesis; Styracaceae.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202008000100008
Imagem não selecionada

Imprime registro no formato completo
Impacts of drought and temperature stress on coffee physiology and production: a review Braz. J. Plant Physiol.
DaMatta,Fábio M.; Ramalho,José D. Cochicho.
Overall, drought and unfavourable temperatures are the major climatic limitations for coffee production. These limitations are expected to become increasingly important in several coffee growing regions due to the recognized changes in global climate, and also because coffee cultivation has spread towards marginal lands, where water shortage and unfavourable temperatures constitute major constraints to coffee yield. In this review, we examine the impacts of such limitations on the physiology, and consequently on the production of mainly Coffea arabica and C. canephora, which account for about 99 % of the world coffee bean production. The first section deals with climatic factors and the coffee plant’s requirements. The importance of controlling oxidative...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffea; Chilling; Frost; Heat; Photosynthesis; Water deficit; Water use; Yield.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100006
Imagem não selecionada

Imprime registro no formato completo
Ecophysiology of tropical tree crops: an introduction Braz. J. Plant Physiol.
DaMatta,Fábio M..
In this special issue, ecophysiology of major tropical tree crops, considered here on a broader sense and including species such as banana, cashew, cassava, citrus, cocoa, coconut, coffee, mango, papaya, rubber, and tea, are examined. For most of these crops, photosynthesis is treated as a central process affecting growth and crop performance. The crop physiological responses to environmental factors such as water availability and temperature are highlighted. Several gaps in our database concerning ecophysiology of tropical tree crops are indicated, major advances are examined, and needs of further researches are delineated.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crop growth and production; Environmental stresses and physiology; Photosynthesis; Gas exchange; Tropical tree crops.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400001
Imagem não selecionada

Imprime registro no formato completo
Photochemical efficiency in bean plants (Phaseolus vulgaris L. and Vigna unguiculata L. Walp) during recovery from high temperature stress Braz. J. Plant Physiol.
Costa,Ernany Santos; Bressan-Smith,Ricardo; Oliveira,Jurandi Gonçalves de; Campostrini,Eliemar; Pimentel,Carlos.
Bean (Phaseolus vulgaris L., cv. Carioca and cv. Negro Huasteco) and cowpea plants (Vigna unguiculata L. Walp cv. Epace 10) were grown in a growth chamber with PPF at leaf level of 200 mumol.m-2.s-1 and air temperature 25 + 1 ºC. The first fully expanded pair of leaves of 12-day-old plants was submitted to high temperature stress (25, 30, 35, 40, 45 and 48 ºC) for 1.5 h. The photochemical efficiency of PSII during recovery was monitored by means of chlorophyll a fluorescence at six different times (0.5, 1, 2, 4, 24, and 48 h) after stress, at 25 ºC, using a modulated fluorimeter. Increasing temperature promoted an increase in Fphi at 45 ºC, possibly associated with dissociation of the light harvesting complex from the reaction centre of PSII, but a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll a fluorescence; Heat stress; Photosynthesis.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202002000200004
Imagem não selecionada

Imprime registro no formato completo
Photosynthetic characteristics of a tropical population of Nitella cernua (Characeae, Chlorophyta) Braz. J. Plant Physiol.
Vieira Jr.,Jair; Necchi Jr.,Orlando.
Photosynthetic characteristics (assessed by chlorophyll fluorescence and O2 evolution) were analysed monthly during one year in a tropical population of Nitella cernua from southeastern Brazil (20º50'32" S, 49º26'15" W). Parameters derived from photosynthesis-irradiance (PI) curves by fluorescence (high values of the photosynthetic parameter, Ik, and lack or low values of photoinhibition, beta) suggested adaptation to high irradiance, whereas those by O2 evolution showed a different pattern (low values of Ik and compensation irradiance, Ic, high values of photosynthetic efficiency, alpha, and photoinhibition). Parameters from PI curves by O2 evolution suggested light acclimation: Ik and maximum photosynthetic rate, Pmax (as rETR, relative electron transfer...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Charophytes; Irradiance; Nitella; PH; Photosynthesis; Seasonal dynamics; Temperature.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000300004
Imagem não selecionada

Imprime registro no formato completo
Differential responses of ribulose-1,5-bisphosphate carboxylase/oxygenase activities of two Vigna unguiculata cultivars to salt stress Braz. J. Plant Physiol.
Aragão,Maria Erivalda Farias de; Guedes,Marjorie Moreira; Otoch,Maria de Lourdes Oliveira; Guedes,Maria Izabel Florindo; Melo,Dirce Fernandes de; Lima,Maria da Guia Silva.
Vita 3 and Vita 5 are two Vigna unguiculata cultivars that differ in their capacities for survival in saline environments; Vita 3 is more tolerant and Vita 5 more sensitive. Both cultivars were submitted to salt stress with 0.1 M NaCl. After 8 days, root and shoot growth from both cultivars was reduced but reduction was more pronounced in Vita 5. Furthermore, leaf area was also reduced in this cultivar. Chlorophyll content and chlorophyll fluorescence parameters were not affected by salt stress, but the specific activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) decreased in Vita 3 and increased in Vita 5. The use of immunological techniques also revealed that the Rubisco content from Vita 3 decreased while that of Vita 5 increased....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rubisco; Photosynthesis; Salt stress; Vigna unguiculata.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000200003
Imagem não selecionada

Imprime registro no formato completo
Gas exchange and yield response to foliar phosphorus application in Phaseolus vulgaris L. under drought Braz. J. Plant Physiol.
Santos,Mauro Guida dos; Ribeiro,Rafael Vasconcelos; Oliveira,Ricardo Ferraz de; Pimentel,Carlos.
This study was conducted to evaluate the effect of foliar Pi application on gas exchange and yield of bean genotypes submitted to a mild water deficit at the pre-flowering stage. In the first experiment, when extra Pi (10 g.L-1) was sprayed on leaves during water stress or during recovery, there was no effect on gas exchange or yield in the A320, Carioca and Ouro Negro genotypes. However, net CO2 assimilation (A) of A320 and Ouro Negro was less affected, but not significantly, than Carioca at the end of the stress, when Pi was supplied five days before water deficit. In the second experiment, two different doses of Pi (10 and 20 g.Pi L-1) were sprayed five days before water deficit on the Carioca genotype. During the last three days of the mild water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Common bean; Inorganic phosphorus; Photosynthesis; Water deficit.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000300007
Imagem não selecionada

Imprime registro no formato completo
The complexity-stability hypothesis in plant gas exchange under water deficit Braz. J. Plant Physiol.
Souza,Gustavo M.; Pincus,Steven M; Monteiro,José Alberto F..
We hypothesized that more complex, i.e. irregular, temporal dynamics and a more interconnected overall network supports greater stability to gas exchange parameters (herein, CO2 net assimilation and transpiration) in plants under water deficit. To test this hypothesis two genotypes of Phaseolus vulgaris were subjected to a period of absence of irrigation, and subsequent rewatering to achieve recovery. Gas exchanges parameters were measured each 10 s during 6 h to obtain time series to evaluate complexity by Approximate Entropy (ApEn) calculations, and network connectance in each water regime. Notably, the Jalo Precoce genotype showed significantly more stability than the Guarumbé genotype under system perturbation, coincident with greater irregularity in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Approximate Entropy; Complexity; Network connectance; Plant stress theory; Photosynthesis; Temporal dynamics; Water deficit.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000400004
Imagem não selecionada

Imprime registro no formato completo
Leaf and fruiting phenology and gas exchange of Mangabeira in response to irrigation Braz. J. Plant Physiol.
Lobo,Francisco de A.; Campelo Junior,José H.; Rodríguez-Ortíz,Carmen E.; Lucena,Isabela C. de; Vourlitis,George L..
The mangabeira (Hancornia speciosa Gómez) is a native species of Brazil occurring in the savanna (Cerrado) and Atlantic Coastal forests. It is a promising species for large-scale horticulture due to the high-protein properties of its fruits, but extensive cultivation has not yet been accomplished. Research is still needed to determine cultivation techniques that will optimize productivity. As irrigation is considered to be the most important agronomic technique to enhance productivity, the goal of this investigation was to evaluate the effects of irrigation on leaf gas exchange (net photosynthesis rate and transpiration rate) and foliar and fruiting phenology. Our results suggest that irrigation acts by increasing the growth and fruit production of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hancornia speciosa; Neotropical savanna; Photosynthesis; Specific leaf area.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202008000100001
Imagem não selecionada

Imprime registro no formato completo
Photo-oxidative stress in coconut seedlings: early events to leaf scorching and seedling death Braz. J. Plant Physiol.
Naresh,Kumar S.; Kasturi Bai,K.V..
Experiments were conducted on coconut seedlings to delineate events of photo-oxidative stress damage. Studies on chlorophyll fluorescence indicated a clear case of excess light energy under high light conditions causing stress to coconut seedlings raised under coconut palms. Quantum yield of photo-chemistry of leaflets exposed to high light was significantly less than those under shade. Seedlings exposed to high light and then shifted to shade have shown significant improvement in quantum yield. Excess light energy harvested by chlorophyll antenna caused high non-photochemical quenching resulting in production of biologically toxic super oxide, hydrogen peroxide and hydroxyl radicals. It is apparent that photoinhibition of photosynthesis takes place due to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cocos nucifera; Chlorophyll fluorescence; Oxidative stress; Photosynthesis; Lipid peroxidation; Gas exchange; Proteins.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000300006
Imagem não selecionada

Imprime registro no formato completo
Effect of cobalt on growth, pigments and the photosynthetic electron transport in Monoraphidium minutum and Nitzchia perminuta Braz. J. Plant Physiol.
El-Sheekh,M.M.; El-Naggar,A.H.; Osman,M.E.H.; El-Mazaly,E..
The unicellular green alga Monoraphidium minutum and the diatom Nitzschia perminuta were cultured under different concentrations of Co2+. Growth and pigment content were slightly increased at low concentrations and inhibited by high Co2+ concentrations. The results concerning the effect of different concentrations of Co2+ on photosynthetic O2 evolution showed a reduction in the amount of O2 evolved by each alga in response to increasing Co2+ concentrations. However, an increase in O2 evolution for both M. minutum and N. perminuta was observed at relatively low Co2+ concentrations. Photosynthetic electron transport in M. minutum was more sensitive to Co2+ toxicity than in N. perminuta. On the other hand, the effect of the heavy metal on respiration showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cobalt; Diatoms; Green algae; Pigments; Photosynthesis.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202003000300005
Imagem não selecionada

Imprime registro no formato completo
Effects of hydric deficiency on gas exchange parameters and metabolism of Eucalyptus grandis clones Braz. J. Plant Physiol.
Coscolin,Renata B. S.; Broetto,Fernando; Marchese,José A.; Campohermoso,Marco C.; Paladini,Marcos V..
The metabolic effects caused by hydric deficiency (HD) on Eucalyptus grandis clones were assessed by an experiment where plants were cultivated in four blocks. The first was the control block, normally irrigated, whereas the other three blocks were submitted to cycles of hydric deficiency. Analysis of photosynthetic efficiency, enzymatic activity of antioxidant response system, level of pigments and L-proline concentration were performed to evaluate the HD effects. Results showed that HD altered some parameters related to photosynthetic activity, pigments accumulation, proline and enzymatic activity. Clone 433 of E. grandis presented higher response ability to HD.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enzymes; Eucalypt; Hydric deficiency; Photosynthesis.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000400002
Registros recuperados: 220
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional