Atmospheric conditions, as well pollutants, can induce changes in the viability and germinability of pollen grain. This process frequently occurs cities due to high rate air pollution that alter quality pollen, affecting its biological functions. In this work, effect different environmental stress factors, mainly UV-B radiation polluting gases (CO, NO2 SO2), on maturity four ornamental tree-spe...

Bu çalışmada, Adıyaman ilinde yapılan etnobotanik araştırmalar kapsamında halk arasında el sanatlarında kullanılan bitkiler araştırılmıştır. Çalışmada halkın mutfak eşyası, sepet, nazarlık, süpürge, oyuncak vb. çeşitli yararlandığı belirlenerek bu bitkilerin kullanım şekilleri ortaya konmuştur. Çalışma; merkez ve merkeze bağlı 8 ilçe ile ilçelerdeki 30 yerleşim biriminde gerçekleştirilmiştir. A...

Knowledge of the Holocene Indian Summer Monsoon (ISM) variability is important for understanding spatio-temporal dynamics ISM precipitation. In this study, a Late pollen proxy record changes in intensity from 1.8 m deep lacustrine sedimentary deposit Jammu District (Jammu and Kashmir State) India presented. The results show that between ~3205 2485 cal yr BP, mixed broad-leaved/conifer forests o...

The present work evaluates and compares the antioxidant capacities of bioactive constituents in barks ten common wood species from Hungary (Quercus rubra, Prunus serotina, Quercus robur, Betula pendula, Fraxinus excelsior, Robinia pseudoacacia, Carpinus betulus, Picea abies, Alnus glutinosa, Pinus sylvestris). Low-frequency ultrasound was used for intensification extraction bark to obtain extra...

The eastern Asian (EAS)-eastern North American (ENA) floristic disjunction is one of the best-known biogeographic patterns in the Northern Hemisphere. Recent paleontological and molecular analyses have illuminated the origins of the biogeographic pattern, but subsequent diversification and evolution of the disjunct floras in each of the two continents after isolation remains poorly understood. ...

BACKGROUND AND AIMS Litter is a key factor in structuring plant populations, through positive or negative interactions. The litter layer forms a mechanical barrier that is often strongly selective against individuals lacking hypocotyle plasticity. Litter composition also interacts with plant growth by providing beneficial nutrients or, inversely, by allowing harmful allelopathic leaching. As co...