Phlomis tuberosa L. (Lamiaceae) is a flowering perennial plant, native to Eurasia, and sparsely distributed in Bulgaria. The species has been proved accumulate flavonoids, iridoids, phenolic glycosides, as well essential oil. To now, there no information on the chemical content of Bulgarian oil from plant. aim was study composition oils, obtained species. Four different samples were studied – o...

Celem przeprowadzonych badań była analiza plonowania i elementów struktury plonu czterech odmian pszenicy ozimej – trzech zwyczajnej (Triticum aestivum ssp. vulgare): ‘Laudis’, ‘Patinas’ ‘Danubius’ jednej odmiany twardej durum Desf.) ‘Lupidur’ oraz jarej dwóch ‘Nawra’ ‘Telimena’ Desf.): ‘Haristide’ ‘Floradur’ uprawianych w systemie rolnictwa konwencjonalnego. Doświadczenie polowe przeprowadzono...

The concentrations of sugars, starch, nutrients and some heavy metals were examined during the growing season in four tree species (Ailanthus glandulosa DESF., Carpinus betulus L., Tilia argentea DESF. and Quercus cerris L.), growing in natural and planted stands in a region with considerable industrial emissions and in an unpolluted area. Trees in the polluted regions had lower concentrations ...

We isolated 8 novel 28-noroleanane-derived spirocyclic triterpenoids with unusual skeleton structures, phlomisone (1), phlomistetraol A (2), phlomistetraol B (3), phlomistetraol C (4), phlomispentaol (5), phlomishexaol A (6), phlomishexaol B (7), and phlomisin (8), from the ethanol extract of Phlomis umbrosa rhizomes. Their structures were elucidated on the basis of spectroscopic methods, inclu...