in this study, 99 isolates of rhizoctonia were recovered from root and crown samples of pistachio seedlings, and soil samples were collected from major pistachio orchards in kerman province. results revealed that 96 isolates were multinucleate and 3 binucleate. mnr belonged to ­ag-4. results of the pathogenicity tests carried out in the greenhouse, using pistachio isolates, revealed that all mn...

Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic. This isotopic interpretation is supported by warm to cold climatic models proposed for the Ordovician and the Jurassic. These carbonates formed during the Greenhouse mode (condition...

The study and mapping of evidences soil piping using non-destructive techniques is a key issue in quantitative geomorphology. This paper attempts to combine Aerial systems (Unmanned Vehicles (UAV)), physical chemical attributes, near-surface geophysical survey tools (ground penetrating radar electrical resistivity tomography) provide comprehensive understanding geometric features arid semi-arid...

It is the first time that biostratigraphic zonations of calcareous nannoplankton from Maestrichtian to Lower Tertiary deposits of Iran are reported. The required samples from the north-eastem and western parts of the country were selected from the stocks of the National Iranian Oil Company. Taxonomic descriptions were not the main objectives, although a new species and genus are apparently ...

Iran has fallen victim to the dire repercussion of malady certain historical, social, and geographic influence namely the proximity with Afghanistan as the largest producer of narcotics in the world. 1 With addition prevailing in Iran, 2 Iran has been reported to have the highest rate of opiate (opium and heroin) use worldwide (450 mt a year). 1,3,4 Available statistics, namely United Nations O...

Planting shrub seedlings under oil mulches has frequently been used for stabilizing mobile sands in Iran for during the last three decades. Sandy desert of Samad Abad, Sarakhs, northeast Iran, has been fixed by cultivating seedling of Haloxylon aphyllum under the oil mulches. Therefore this study was designed to investigate the effects of the sand fixation project on soil and vegetation propert...