Phenology and Ecophysiology of the Tropical Tree, Tabebuia Neochrysantha (Bignoniaceae)
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چکیده
منابع مشابه
Sap fow through petioles and petiolules reveals leaf-level responses to light and vapor pressure defcit in the tropical tree Tabebuia rosea (Bignoniaceae)
Continuous measurements of sap fow have been widely used to measure water fux through tree stems and branches. However, these measurements lack the resolution necessary for determining fne-scale, leaf-level responses to environmental variables. We used the heat ratio method to measure sap fow rates through leaf petioles and leafet petiolules of saplings of the tropical tree Tabebuia rosea (Bign...
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The Paraguayan crude drug "tayï pytá" is used to treat cancer, wounds and inflammation. It consist of the bark and trunkwood of Tabebuia heptaphylla (Bignoniaceae). A phytochemical study of the crude drug gave, in addition to previously described naphthoquinones and the known lignans cycloolivil and secoisolariciresinol, three new lapachenol (lapachonone)-, two naphthofuran-, a chromone and a n...
متن کاملEstimation of the Distribution of Tabebuia guayacan (Bignoniaceae) Using High-Resolution Remote Sensing Imagery
Species identification and characterization in tropical environments is an emerging field in tropical remote sensing. Significant efforts are currently aimed at the detection of tree species, of levels of forest successional stages, and the extent of liana occurrence at the top of canopies. In this paper we describe our use of high resolution imagery from the Quickbird Satellite to estimate the...
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Tabebuia sp. is native to tropical rain forests throughout Central and South America. Although the biological and pharmacological effects of bark extracts have been intensely studied, little is known on the extract obtained from the flower. Herein, the genotoxic potential of a flower extract from T. impetiginosa ("ipê roxo") on the blood and liver cells of Wistar rats was evaluated. Experimenta...
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ژورنال
عنوان ژورنال: Ecology
سال: 1982
ISSN: 0012-9658
DOI: 10.2307/1938945