Invasive alien weed species; are non-indigenous species that have adverse economic, environment and ecological effects on habitats where they have been introduced, either accidentally or deliberately, outside their normal past or present distribution. The objective of this study was to determine...

Cassia uniflora Mill. Non Spreng. a dominant invasive weed from Ganeshkhind area has affected the phytodiversity of Pune University campus (M.S., India). Its leaf leachates inhibited seed germination and seedling growth in test crops like tomato and brinjal at all the concentrations indicating...

The Catalogo de las Plantas Vasculares del Cono Sur presents a critical list of the species and taxa that grow in the subtropical and temperate to cold temperate areas of South America. The area referred to as Cono Sur roughly extends south of parallel 20 degrees S from the Atlantic to the Pacific...

The host range of Sclerotium rolfsii [Corticium rolfsii] was evaluated by controlled inoculation of the following native and exotic forest species: Anadenanthera peregrina (angico vennelho), Chorisia speciosa (paineira rosa), Clitoria fairchildiana (sombreiro), Copaifera langsdorfii (copaíba), ...

Studies were conducted with one glyphosate-resistant and three conventional soybean cultivars to determine the effects of reducing row spacing from 76 to 38 and 19 cm, in combination with increased soybean population and herbicide applications (single and sequential), on sicklepod control and...

Invasive alien plants were first noted as a problem in the Kruger National Park (KNP) in 1937. Since then, the number of invasive alien species and types of impacts and the overall impact has increased rapidly. The most widespread terrestrial invaders are: Lantana camara L., Opuntia stricta...

Electrophoretic seed protein profiles, chromosome number and morphological characters of 10 species of genus Cassia belonging to subgenera Fistula and Senna, are discussed. The phylogenetic relationships between these 10 species are also evaluated, based on numerical analysis. According to...

Efforts to overcome declining soil fertility on smallholder farms in western Kenya must be consistent with the reality of low utilization of inorganic fertilizers. Likewise, organic inputs alone cannot supply adequate nutrients. The use of two organic resources, Tithonia diversifolia (tithonia) and ...

A study of an 8 km² area of Fazenda beach identified 6 species of Caesalpinioideae: Chamaecrista desvauxii, C. glandulosa, C. nictitans, Senna multijuga, S. pendula and Schizolobium parahyba [S. parahybum]. Identification keys, illustrations and information on morphology, intraspecific and...

Imbibition curves are given for these 3 species, identifying coat-imposed dormancy. Mechanical (using sandpaper) and chemical (using concentrated sulfuric acid) scarification procedures were tested to overcome this, and the resulting seed germination curves are presented. Mechanical scarification...