Results 51 to 60 of about 2,858 (137)

Interferência da disponibilidade de luz na resposta à adubação de plantios de enriquecimento com leguminosas arbóreas Interference of light availability on response to fertilization of enrichment plantings with leguminous trees

Pesquisa Agropecuária Brasileira, 2013
O objetivo deste trabalho foi avaliar a interferência da disponibilidade de luz na resposta à adubação de plantios de enriquecimento da capoeira com leguminosas arbóreas.
Marco Aurélio de Carvalho Silva, Luiz Augusto Gomes de Souza, Diego Oliveira Brandão   +2 more
doaj  

Systemic and reproductive toxicity induced by Parkia platycephala ethanolic extract in female Wistar rats

Revista Brasileira de Farmacognosia, 2013
AbstractThe present study was conducted to evaluate the toxicity of the ethanolic extract of leaves of Parkia platycephala Benth., Fabaceae, on systemic and reproductive parameters. In toxicity on the estrous cycle, four groups of not-pregnant Wistar rats received distilled water and the doses 250, 500 and 1000mg.kg-1 of plant extract for thirty days ...
Costa, Bethânia A., Oliveira, Jamylla M.G. de, Sales, Paulo A.B., Lira, Silvéria R. de S., Silva, Silvana M.M. de S., Costa, Luciana M., Muratori, Maria C.S., Costa, Amilton P.R.   +7 more
openaire   +3 more sources

SUBSTRATE MOISTURE AND TEMPERATURE IN GERMINATION OF Parkia platycephala BENTH. SEEDS [PDF]

, 2015
A Parkia platycephala Benth. (faveira) \ue9 uma leguminosa arb\uf3rea, conhecida como fornecedora de madeira comercial na Amaz\uf4nia. O presente trabalho foi conduzido com o objetivo de avaliar diferentes volumes de \ue1gua para umedecimento do ...
Viana, Jeandson Silva, de Fran\ue7a, Pablo Radam\ue9s Cabral, Alves, Edna Ursulino, Gon\ue7alves, Edilma Pereira, Guedes, Roberta Sales, de Lima, Cosmo Rufino   +5 more
core  

Prospeção de inibidores de serinoproteinases em folhas de leguminosas arbóreas da floresta Amazônica Prospecting serine proteinase inhibitors in leaves from leguminous trees of the Amazon forest

Acta Amazonica, 2011
Os inibidores de proteinases são proteínas extensivamente investigadas nos tecidos de estocagem, mas pouco prospectadas em outros tecidos vegetais. O objetivo deste estudo foi detectar a presença de inibidores de serinoproteinases em extratos foliares de
Larissa Ramos Chevreuil, José Francisco de Carvalho Gonçalves, Flávia Camila SCHIMPL, Cristiane Santos do Carmo Ribeiro de Souza, Luiz Augusto Gomes de Souza, Silvana Cristina Pando   +5 more
doaj   +1 more source

Differential effect of plant lectins on mast cells of different origins

Brazilian Journal of Medical and Biological Research, 2005
Histamine release induced by plant lectins was studied with emphasis on the carbohydrate specificity, external calcium requirement, metal binding sites, and mast cell heterogeneity and on the importance of antibodies bound to the mast cell membrane to ...
F.C. Lopes, B.S. Cavada, V.P.T. Pinto, A.H. Sampaio, J.C. Gomes   +4 more
doaj   +1 more source

Diversidade e estrutura do cerrado sensu stricto sobre areia (Neossolo Quartzarênico) na Chapada Grande Meridional, Piauí

Revista de Biologia Neotropical, 2010
O Cerrado localizado na Chapada Grande Meridional, Piauí, ocorre em manchas e, por sua posição marginal, esperava-se encontrar elevada diversidade beta na vegetação lenhosa e menor riqueza e diversidade alfa em relação àquelas encontradas na região ...
Galiana da Silveira Lindoso, Jeanine Maria Felfili, Joxleide Mendes da Costa, Antônio Alberto Jorge Farias Castro   +3 more
doaj   +1 more source

Seasonality effects on the phenology and physiology of Parkia platycephala Benth (Fabaceae, Caesalpinioideae) in Cerrado

, 2021
Plant species have developed a great number of mechanisms to maintain their reproduction and defend themselves during stressful conditions. Both primary and secondary metabolisms are affected by environmental changes at different stages of plant development.
Lacerda, Valdelice Oliveira, Mapeli, Ana Maria   +1 more
openaire   +1 more source

Initial growth of Parkia platycephala (Benth.) and Enterolobium timbouva (Mart.) under field conditions in a Cerrado area

, 2016
The objective of the present study was to analyze the growth of Parkia platycephala and Enterolobium timbouva (Mimosaceae), tree species native to Cerrado, in a strictus sensus Cerrado area in the municipality of Porto Nacional, Tocantins.
Laís Ramos Alves (12689331), Rafael José de Oliveira (6096857), Ronaldo Rodrigues Coimbra (12689334), Wagner de Melo Ferreira (6072008)   +3 more
core   +1 more source

Water requirements and crop coefficients of tropical forest seedlings in different shading conditions

Revista Brasileira de Engenharia Agrícola e Ambiental
The objective was to determine the crop evapotranspiration (ETc) and crop coefficients (Kc) of tropical forest seedlings over a 135-day cycle, in the climatic conditions of the Cerrado-Amazon transitional region (11º 51’ 08 “S; 55º 30’ 56” W; altitude of
Emanoeli B. Monteiro, Andréa C. da Silva, Adilson P. Souza, Adriana A. Tanaka, Brena G. Ferneda, Charles C. Martim   +5 more
doaj   +1 more source

Bioprospecção fitoquímica, toxicidade e atividades antioxidante e anticolinesterásica de extratos da Parkia Platycephala (Benth.) [PDF]

, 2023
Despite the historical use of plants for therapeutic purposes in Brazil, the progress in research that justifies such pharmacological effects is still negligible in the face of the vast national flora.
Fernandes, Rachel de Moura Nunes
core   +1 more source