The genus Tanacetum is one of the most important medicinal plant that contains 26 species in Iran, 12 of them are endemic. This paper reports the essential oil (EO) composition of Tanacetum polycephalum subsp. polycephalum growing wild in Iran.  Flowers and leaves were collected from different location of Azerbaijan province (Marand, Mianeh and Tabriz), hydro-distilled to produce the oils and a...

The rockfill structures are widely constructed throughout the world and rockfills are largely used in these structures as main materials or filler materials. In the crust of earth dams, the rockfill materials role is to stabilize the body of the dam, however, the behavior of these materials in Particular their shear strength is not fully understood. In this study, different tests have been cond...

the genus tanacetum is one of the most important medicinal plant that contains 26 species in iran, 12 of them are endemic. this paper reports the essential oil (eo) composition of tanacetum polycephalum subsp. polycephalum growing wild in iran.  flowers and leaves were collected from different location of azerbaijan province (marand, mianeh and tabriz), hydro-distilled to produce the oils and a...

there are continuous connections between a city and its periphery and the form of these relations varies. collection of these relations makes an influential area forming the various relations between the city and periphery. these relations are not the same and do not have unique concentration and density rather, they hey depend on population, geographic conditions and the role of the city in th...

the present research was carried out to evaluate the response of seven selected persian leek accessions to in vitro gynogenesis. the experimental design was a factorial one based upon a completely randomized design of three culture media treatments b2d0 (2 mgl-1 ba), b2d2 (2 mgl-1 ba and 2 mgl-1 2, 4-d), and b2d4 (2 mgl-1 ba and 4 mgl-1 2, 4-d) along with seven persian leek accessions (gorgan, ...

results we found 28 cases with positive results for b. melitensis by multiplex pcr technique which was significantly different from of sat (p<0.05). six samples were positive for b. abortus by pcr. conclusion the results of present study showed that multiplex pcr assay is a rapid and sensitive technique for diagnosis of brucellosis compared to sat. however it is more accurate when coupled with ...

abstract east azarbaijan province is one of the most important areas for poplar production and has the highest suitability of poplar plantation in iran. three species of poplar trees included populus alba, p. nigra and p. x. euramericana are planted and usually attacked by different pests in this province. melasoma populi l., archips rosana (l.) and pemphigus filaginis are some of important pes...