These field trials were carried out to investigate the effect of various zinc (Zn) fertilizer application treatments on grain yield of some spring (Isfahan and Neishabour) and winter wheat cultivars (Mashhad and Jolge-e-Rokh) with different Zn efficiency during 2009-2010 growth seasons. Five Zn fertilizer treatments were applied including: no added Zn (control), soil application of Zn-sulfate, ...

Sustaining environmental flows to preserve biodiversity of aquatic plant and animal species, as well as constancy of water for human communities, is essential in many river ecosystems. On the other hand, hydrological changes caused by the dam and its related environmental problems have provoked many concerns for hydrologists, ecologists and policymakers. Therefore, the main aim of this research...

به منظور ارزیابی عکس‌العمل ژنوتیپ‌های گندم نان به تنش رطوبتی، 21 ژنوتیپ پیشرفته گندم دیم به همراه ارقام شاهد آذر2 و الوند در تنش خشکی (دیم) و آبیاری تکمیلی (دو بار آبیاری ) در قالب طرح بلوک‌های کامل تصادفی با سه تکرار در سال زراعی 88-1387 در ایستگاه تحقیقات کشاورزی دیم مراغه مورد مطالعه قرار گرفتند. تجزیه واریانس مرکب نشان داد که بین دو شرایط متفاوت محیطی و ژنوتیپ‌های مورد مطالعه تفاوت معنی‌دار...

abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...

Cultivation and development of medicinal plants is an effective way to fulfil of medicinal plants demand and to protect natural habitat to over use. Ziziphora tenuior is one of the traditional medicinal plants in Iran, which has a substance called Pulegone with its analgesic and anti-inflammatory effects. The main purpose of this study is find suitable landfor the plant cultivation in Sabalan w...

به منظور ارزیابی عکس العمل ژنوتیپ های گندم نان به تنش رطوبتی، 21 ژنوتیپ پیشرفته گندم دیم به همراه ارقام شاهد آذر2 و الوند در تنش خشکی (دیم) و آبیاری تکمیلی (دو بار آبیاری ) در قالب طرح بلوک های کامل تصادفی با سه تکرار در سال زراعی 88-1387 در ایستگاه تحقیقات کشاورزی دیم مراغه مورد مطالعه قرار گرفتند. تجزیه واریانس مرکب نشان داد که بین دو شرایط متفاوت محیطی و ژنوتیپ های مورد مطالعه تفاوت معنی دار...

In order to assess the relationship of grain yield and some of the agronomic traits recombinant inbred lines (RIL) population of bread wheat derived from the Roshan × Sabalan were used to detect the informative traits on grain yield as the suitable criteria for indirect selection and path coefficient analysis. Two hundred and sixty seven recombinant inbred lines with three control cultivars (Ro...