Research has shown that there are significant ethnic variations in the frequency of highly functional mutations in genes coding for metabolic enzymes. However, few studies have examined the frequency distribution of major allelic variations within the population of Iran. The present study focused on the genotype profile of southern Iranians in order to compare the allelic frequencies of CYP2C9,...

degradation of natural habitats and decreasing of genetic diversity of populus caspica led to vast reduction of its regeneration and growth potential in north of iran. hence, the growth potential of mass-produced seedlings was compared with their parents. for this purpose, the ramets of three selected seedlings from 17 parent trees belonging to north of iran, along with ramets of their parent t...

The Caspian lizard (Darevskia caspica) is a recently described endemic of the Hyrcanian forests Northern Iran. paper presents new data on reproductive biology D. caspica obtained in laboratory conditions. Breeding females have body length 53.4– 64.4 mm and mass 2.96–3.60 g. Females produce from one to three clutches per season, each which contains 1–6 eggs. these eggs 10.35–13.95 mm, width 6.19...

floristic studies are fundamental for the applied sciences such as rangelandmanagement and conservation. unique ecological and climatic conditions in the northernkhorasan province (nkp) make it a remarkable habitat for the floristic studies. plant specieswere collected from 50 field sites, representing major habitats of winter and rural rangelands.surveys were conducted during active growth per...

In Northern Europe the use of tree biomass for production of energy is mostly based on thinning of forests, harvest residues, stumps from final cutting, bark of commercial roundwood, and organic waste of pulp industry. Results based on field experiments allow estimations of 137Cs activity removed from forests in wood fuel, and also the activity returned in ash used as a fertiliser. After one fe...