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Colonization pattern of Cecropia by Azteca ants: Influence of plant ontogeny, environment and host plant choice by queens
(California State University, 2008-01-01)
Several plant species of the large Neotropical genus Cecropia acts as a host plant for ants, especially those of the genus Azteca. Although literature has reported that the Azteca queens found colonies by perforating the ...
Efeito de níveis de fósforo no crescimento inicial, biomassa e atividade in vivo da fosfatase ácida em Lychnophora ericoides Mart
(2008-12-01)
The effect of phosphorus levels on seedling growth, dry and fresh matter production, and in vivo acid phosphatase activity was studied in Lychnophora ericoides cultivated during 130 days after transplanting in a greenhouse. ...
Sites of Defoliation by Atta sexdens rubropilosa (Hymenoptera, Formicidae) in Artificial Plants
(California State University, 2009-01-01)
This study aimed to achieve a better understanding about the foraging behavior of leaf-cutter ant (Atta sexdens rubropilosa Forel) workers with respect to defoliation sites in plants. To accomplish that, artificial plants ...
Microhabitat use by Peucetia flava (Oxyopidae) on the glandular plant Rhyncanthera dichotoma (Melastomataceae)
(Amer Arachnological Soc, 2008-01-01)
Several studies have reported that plant structural components can exert influences on the density and distribution of spiders. However, little is known about which plant traits mediate specific associations between spiders ...
Phytochemical evidence for the plant origin of Brazilian propolis from Sao Paulo state
(1999-05-01)
Propolis and plant secretions from three species, most frequently mentioned as botanical sources of the bee glue in Brazil (Baccharis dracunculifolia, Araucaria angustifolia and Eucalyptus citriodora) have been investigated ...
The effects of biostimulants on induced plant defense
(Frontiers Media S.A., 2022)
Efeitos da nutrição mineral na competição inter e intraespecífica de Eucalyptus grandis e brachiaria decumbens: 1- crescimento
(2000-12-01)
The present work was conducted with the objective to study the effects of mineral nutrition on Eucalyptus grandis and Brachiaria decumbens (#BRADC) growth, when submitted to inter- and intra-specific competition. The ...
Influence of fertilizer on coumarin content and biomass production in Mikania glomerata sprengel
(1998-12-01)
Mikania glomerata Sprengel leaf extracts have been used in cough syrup formulations due to the presence of active coumarin derivatives. Yields of such natural compounds in cultivated plants can be affected by several ...
Nitrogen redistribution to sorghum grains as affected by plant competition
(Springer, 1993-10-01)
An experiment was conducted to study nitrogen absorption and translocation in grain sorghum plants during their reproductive growth. Sorghum was grown in four row spacings: 50 and 70 cm in single rows, 80 and 120 cm in ...