عشقی زاده, حمیدرضا
دانشگاه صنعتی اصفهان
[ 1 ] - تعیین خصوصیات اقلیمی زیست بوم و پراکنش جغرافیایی دو گونه مرتعی با استفاده از روش مدل سازی جنگل تصادفی در منطقه زاگرس مرکزی
نوع آب و هوا، وضع گیاهان و اجتماعات گیاهی مناطق مختلف را تا حد زیادی مشخص می‌کند؛ بنابراین باید جهت بررسی و مطالعه گیاهان مرتعی، دامنه تحمل و بردباری هرگونه نسبت به این عوامل مشخص شود. در این مطالعه خصوصیات و نیازهای اقلیمی دو گونه از گندمیان مهم با ویژگی¬های علوفه¬ای و حفاظتی به نام¬های Agropyron trichophorum Richt. و Bromus tomentellus Boiss. در منطقه زاگرس مرکزی مورد بررسی قرار گرفتند. به ای...
[ 2 ] - ارزیابی غلظت نیترات خاک، آب آبیاری و غده سیب‌زمینی در مزارع با مساحت های مختلف در شهرستان فریدن استان اصفهان
To determine the nitrate pollution (water, soil, and tubers) in small (< 0.5 ha), medium (0.5- 1 ha) and large (> 1 ha) size of potato fields, this study was conducted in Fereidan region of Isfahan province during growing season of 2014-2015. For this purpose, the amounts of inputs and the tuber yield were recorded in each farm. Also, average nitrate-N concentration in irrigation water, soil an...
[ 3 ] - بررسی وضعیت زرد برگی آهن درختان چنار فضای سبز شهر اصفهان، I: غلظت عناصر معدنی در برگ
In order to assess the status of the iron (Fe) chlorosis of plane trees in green space of Isfahan city, the chlorosis intensity of 73 trees in different regions was recorded as (1): low (less than 5% of leaves), (2): moderate (less than 50% of leaves), (3): severe (more than 50% of leaves), and (4): very severe (more than 95% of leaves). The whole leaf (with petiole) samples were take...
[ 4 ] - پاسخ اگرومورفولوژیک ژنوتیپ‌های محلی و اصلاح شده برنج ایرانی به شوری محلول غذایی
An experiment was conducted to determine the responses of 27 Iranian local and improved rice genotypes to two salinity levels (0 and 100 Mm NaCl) at Soilless Culture Research Center of Isfahan University of Technology. The treatments were arranged as factorial in a completely randomized design with three replications. The results showed that there was considerable variation in agro-morphologica...
[ 5 ] - تأثیر شوری بر وضعیت آب برگ، غلظت پرولین، کل قندهای محلول و فعالیت آنتی‌اکسیدانی گیاه ارزن پادزهری
Evaluation of certain biochemical and physiological changes under stress can provide an appropriate approach for the study of hereditary factors influencing salt stress tolerance. In this greenhouse study, the changes in water status, osmotic regulators and activity of antioxidant enzymes in leaf tissue of panic blue grass (Panicum antidotale Retz) exposed to salinity were evaluated over five c...
[ 6 ] - تأثیر رژیم‌های مختلف آبیاری با آب شور بر عملکرد سورگوم دانه‌ای و شبیه‌سازی عملکرد آن با استفاده از مدل SWAP
Due to the dry climate and limitation of fresh water resources, using fresh and salt water is a solution for crop production under salinity conditions. This study was conducted at Isfahan University of Technology as a randomized complete block design with three replications and five irrigation management treatments in 2014. The treatments included irrigation with saline water (with the salinity...
[ 7 ] - Effect of different levels of nitrogen fertilizer on physiological growth indices and photosynthetic pigments of early, middle and late hybrids of corn (Zea mays L.)
This study was designed and conducted to investigate on physiological growth indices and photosynthetic pigments in three maturing corn (Zea mays L.) hybrids (SC704, SC500, and SC260) using four nitrogen (N) levels (0, 80, 160, and 240 kg N ha-1, from Urea, N= 45%). The experiments were conducted in Zabol and Isfahan in 2014 and 2015, respectively, using the split-plot arrangement in a randomi...
[ 8 ] - The impact of atmospheric temperature and soil nitrogen on some physiological traits and dry matter accumulation of wheat (Triticum aestivum cv. Bahar)
Wheat is the most important cereal crop in the world as well as in Iran. The studies related to the effects of global climate change on wheat production usually assess the impact of changes in atmospheric CO2 concentration and temperature on growth and yield. On the other hand, nitrogen is the most crucial plant nutrient for crop production and the proper management and improving the utilizatio...
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