به‌منظور بررسی اثر گونه‏های مختلف قارچ آرباسکولار میکوریز بر کارایی جذب آب و برخی شاخص‏های رشد گیاه زینتی استئوسپرموم، آزمایشی به‌صورت فاکتوریل در قالب طرح بلوک‏های کامل تصادفی با شش تکرار در شرایط گلخانه‏ای‏ اجرا شد. همزیستی تعداد 22 گونه قارچ میکوریزی مختلف با این گیاه در این آزمایش مطالعه شد. نتایج نشان داد که قارچ آرباسکولار میکوریز Glomus mossea CA و Glomus mossea st6 نسبت به قارچ‏های دیگر...

به منظور بررسی اثر گونه‏های مختلف قارچ آرباسکولار میکوریز بر کارایی جذب آب و برخی شاخص‏های رشد گیاه زینتی استئوسپرموم، آزمایشی به صورت فاکتوریل در قالب طرح بلوک‏های کامل تصادفی با شش تکرار در شرایط گلخانه‏ای‏ اجرا شد. همزیستی تعداد 22 گونه قارچ میکوریزی مختلف با این گیاه در این آزمایش مطالعه شد. نتایج نشان داد که قارچ آرباسکولار میکوریز glomus mossea ca و glomus mossea st6 نسبت به قارچ‏های دیگر...

abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...

abstract this study evaluates the iranian pre-university english textbook in terms of needs, objectives, content, and methodology. the study was designed on the qualitative- quantitative survey basis using interviews and questionnaires, a researcher-made textbook evaluation checklist and a needs analysis questionnaire. the textbook evaluation questionnaire was used in this study to elicit the ...

in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

abstractof two mcall programs introducing 100 vocabulary items through two im the researcher of the present study was intrigued to compare the effects age modalities (pictures and streaming video) with those of a conventional method (teacher instruction) in an efl context. she set out to investigate whether such multimedia environments could provide a more effective environment for vocabulary...