Spanish Cedar (Cedrela odorata L.) is a globally important timber species which has been severely exploited in Mesoamerica for over 200 years. Using polymerase chain reaction-restriction fragment length polymorphisms, its chloroplast (cp) DNA phylogeography was studied in Mesoamerica with samples from 29 populations in six countries. Five haplotypes were characterized, phylogenetically grouped ...

Chromolaena odorata (L.) King & Robinson (Asteraceae: Eupatorieae), a shrub of neotropical origin, is a primary threat to the conservation of biodiversity, and to pastoral and crop agriculture and forestry in the subtropical regions of South Africa. It invades much of the sugarcane growing areas in KwaZulu-Natal and thus impacts negatively on the South African sugar industry. The plant presents...

BACKGROUND The use of plants and plant products for medicinal purposes is an age-long practice in traditional communities and is becoming prominent globally. This study was performed to evaluate the effect of ethanolic extract of Chromolaena odorata on the kidney and intestine of albino rats. METHODS Twenty growing albino rats with an average weight of 54 g were used in this study. They were ...

Essential oil obtained from the rhizomes of pavonia odorata willd has been found to posses a number of interesting pharmacological actions on various parameters. The essential oil produced fall in blood pressure of anaesthethized dog and caused cardiac inhibition in frog's isolated heart. The essential oil caused relaxation of the rabbit's intestine and had no effect on rectus abdominus muscle ...

Laboratory and green house experiments were conducted to ascertain the effect of exudates (from vegetative parts weeds soaked in water) different ages (36hrs, 72hrs 120hrs) from three common weed species (namely, Chromolaena odorata, Ageratum conyzoides Cyperus esculentus) on seed germination seedling growth tomato (Lycopersicum esculentum). Tomato seeds sown petri-dishes filter paper moistened...

Based on phylogenetic studies and morphological evidence, we propose the synonymization of Morrenia and Schistogyne under Araujia and Oxypetalum respectively. As a result, eight new combinations are proposed in Araujia (A. brachystephana, A. hassleriana, A. herzogii, A. odorata, A. scalae, A. stuckertiana, A. stuckertiana subsp. grandiflora and A. variegata), and eight in Oxypetalum, including ...

The world's forests play a pivotal role in the mitigation of global climate change. By photosynthesis they remove CO2 from the atmosphere and store carbon in their biomass. While old trees are generally acknowledged for a long carbon residence time, there is no consensus on their contribution to carbon accumulation due to a lack of long-term individual tree data. Tree ring analyses, which use a...

Cedrela odorata (Meliaceae) is considered as one of the most valuable forest tree in the tropics. Clonal propagation of this species provide an alternative method to propagate superior genotypes, being the production of good quality adventitious roots one of the most important steps in micropropagation techniques. The sequence of anatomical changes that takes place during the formation of adven...