An investigation was carried out in some areas of Golestan Province including: Loveh forest, Soosara, Daland forest park, Tooskestan; Gilan Province including Siahkal and Asalem forests; Arasbaran and landscape of urban trees during 1999–2007. In this investigation, based on some morphological, physiological and molecular characteristics and also comparison with standard isolates two species Op...

Radial increment objectively reflects the quality of assimilation apparatus a woody plant. Its features indicate influence various anthropogenic, biotic and abiotic factors as well stability plant under stress. The aim this study was to survey long-term dynamics radial growth six tree species: Betula pendula, Ulmus glabra, Quercus robur, Tilia cordata, Picea abies Pinus silvestris, depending on...

The aim of this study was to determine the influence of temperature increase combined to conditions of light incidence on functional response of Heleobia australis. Experiments were conducted using nine to ten food concentrations for each treatment: 20°C without light; 30°C without light and, 30°C under low light intensity. For each experiment, the functional response type III (sigmoidal) was f...