Achene morphology of 49 taxa of the genus Centaurea L. was studied in terms of 19 different characteristics. On the basis of the variation in these features, some sections, such as sect. Cyanus with hairy hilum, were separated. Despite various differences, C. leuzeoides and C. gilanica were categorized in the section Psephelloideae, a section with lots of character variations within its species...

this experiment was conducted to evaluate the effects of salt stress on some agro-physiological traits in ten varieties of bread (triticum aestivum l.) and durum (triticum turgidum l.) wheats in seedling stage. a greenhouse experiment was carried out as a split plot experiment based on a completely randomized design with four replications in hydroponic condition. different agronomic and physiol...

abstract this study was performed to compare the efficiency of 6 microalgae namely dunaliella tertiolecta, tetraselmis suecica, chlorella sp., (green algae), nannochloropsis oculata, spirolina sp.(blue-green algae) cheatocerus sp. (diatoma),  and isochrices sp. (haptophytae) on the growth, survival and reproduction efficacy in artemia urmiana in laboratory conditions. artemia cysts were harvest...

maqamat of  badi al- zaman is the most valuble arab old works, that it could pay attention rapidly literary men and even public people, because of badi al- zaman be able to use with own rare creativity and intelligence for the first time  alot story elements such as characte, event, plot, scene, dialogue, realty-view. character and characterize is the basic story elements in maqamat and communi...

introduction: the aim of this study was to evaluate the accuracy of two electronic apex locators (smarpex and novapex) in detecting apical perforation. materials and methods: after access cavity preparations, the working length was determined by the first examiner before and after perforation with a stereomicroscope by introducing a k-file size 10 into the canal and size 25 k-file up to the per...

there is no functional annotation for the majority of the several hundreds of receptor-like kinases in plants. a direct way of inferring the function of these proteins is to study the phenotype that results from loss of function mutants such as t-dna mutant lines. in this research a function (phenotype) to at2g37050 gene that encodes a receptor like kinase in arabidopsis t-dna line was assigned...