in order to find the most appropriate planting patter and cultivar of grain corn, an experiment was conducted in agriculture research station of jiroft and kahnooj, iran for two years in 2007 and 2008 as a split-plot experiment based on a randomized complete blocks design with three replications. the main plot was planting patter at four levels of normal planting (single-row on one furrow), dou...

Background: Bone sarcomas are the most common malignancies of bone tissues in children, and are classified intotwo groups as osteosarcoma and Ewing’s Sarcoma. Treatment and prognosis depend on the subtype and grade ofthe tumor. The goal of this study was to evaluate the features bone sarcoma in patients referred to MAHAK childrenhospital since 2007 to 2009.Materials and Methods: This was a retr...

low temperature (lt) acclimation, phenological development and vernalization requirement are known to influence the expression of frost tolerance (ft) in winter cereals. a phenotypic study was undertaken to determine the interrelationship between developmental stages and ft in hardy winter wheat and rye cultivars acclimated under field condition in the cold and temperate regions of iran. winter...

phase transition from vegetative to reproductive growth is an important character for winter wheat under cold conditions because it decreases the ability of wheat plants to maintain frost tolerance. reproductive development in winter wheat is triggered by fulfillment of vernalization requirements. this study was conducted to determine the inter-relationship between developmental stages and free...