Modelling and mapping of hooded warbler (Wilsonia citrina) nesting habitat in forests of southern Ontario were conducted using Ikonos and Landsat data. The study began with an analysis of skyward hemispherical photography to determine canopy characteristics associated with nest sites. It showed that nest sites had significantly less overhead canopy cover and larger maximum gap size than in non-...

Two steroidal saponins, hemeroside A and B, were isolated from the aerial part of Hemerocallis fulva var. kwanso for the first time. The structures of these compounds were established as 24S-hydroxy-neotokorogenin 1-O-alpha-L-arabinopyranosyl 24-O-beta-D-glucopyranoside (1) and isorhodeasapogenin 3-O-beta-D-glucopyranosyl-(1-->3)-[beta-D-xylopyranosyl-(1-->2)]-beta-D-glucopyranosyl-(1-->4)-beta...

Cypripedium genus is represented by 59 species and nothospecies (species of hybrid origin), mainly distributed across North, Central South America, Europe Asia, but absent from Madagascar Australia. The most important characteristic this their showy large labellum, which transformed into the specific slipper-shaped, vividly coloured, inflated pouch. In Romania, one only, calceolus. article cont...

The purpose of the research was to identify sources economically valuable traits winter durum wheat for their further use in breeding process. material 53 varieties various ecological origins: Federal State Budgetary Scientific Institution, Agrarian Research Center “Donskoy”, Institution “National Grain named after P.P. Lukyanenko”, “North Caucasian Center” (Russia) and Selective Genetic Instit...