List of Articles Abscisic acid

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  1 - Effects of cold stress on Abscisic acid composition by examining the gene expression and non-enzymatic antioxidants changes of Tomato (Solanum lycopersicum 'Red Cloud cultivar)
  Niloofar Samadi Sakineh Saeidi Sar Hossein ABBASPOUR Nahid Masoudian
  Tomato (Solanum lycopersicom L.) a main agricultural crops that is important in most countries including Iran. In this study, we investigated the SlNCED1 gene expression of biosynthetic Abscisic acid pathway by Real Time qRT-PCR and measured some of the physiological ch More

  Tomato (Solanum lycopersicom L.) a main agricultural crops that is important in most countries including Iran. In this study, we investigated the SlNCED1 gene expression of biosynthetic Abscisic acid pathway by Real Time qRT-PCR and measured some of the physiological characteristics under cold stress. After fruiting, plants were placed under 2° and 4° C temperatures for 12 and 24 hours. Then, the fruits were collected for gene expression and measuring non-enzymatic antioxidant by DPPH and total phenols by Folin Ciocalteo. Results showed that the fruits at 4° C for 24 and 12 hours had more gene expression compared to other treatments. Also, non-enzymatic and total phenols had increased significantly at 2° C for 12 hours. Generally, since tomato Red Cloud cultivar belongs to tropical region, at temperatures below 12° C it is influenced by cold stress and, subsequently, it makes changes in gene expression and antioxidants to protect itself against stress. Manuscript profile
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  2 - The effect of drought stress management by hormones and zinc on forage yield of Zea Mays L. 704 in Isfahan Province
  Morteza Sam Deliri Morteza Moballeghi Sanaz Solymanpour Amir Abbas Mousavi Mirkalaei
  10.30495/iper.2021.679534
  In order to study the morphological traits and yield of maize 704 SC under the influence of spraying with growth regulators and drought stress conditions in Isfahan, an experiment was conducted for two years based on the split plot design with 3 replications. The main t More

  In order to study the morphological traits and yield of maize 704 SC under the influence of spraying with growth regulators and drought stress conditions in Isfahan, an experiment was conducted for two years based on the split plot design with 3 replications. The main treatment included drought stress at three levels of control (irrigation based on 100% water requirement of corn), mild stress (based on 85% of the plant's water requirement), and severe stress (based on 70% of the plant's water requirement). The second treatment included spraying with distilled water as control, abscisic acid (100 mM), gibberellin (100 ppm), salicylic acid (5 mM), and Nano-zinc (2 gl-1 water). The results of this experiment showed that the effect of year on biological yield, crude protein, and forage yield were significant. Also, the effect of drought stress and spraying on leaf area index, chlorophyll index, biological yield, crude protein, and forage yield were significant. Also, the effect of drought stress and spraying on leaf area index, chlorophyll index, biological yield, crude protein and forage yield were significant. The highest forage yield (90.44 t ha-1) was obtained under the complete irrigation with salicylic acid treatment. Salicylic acid treatment resulted in higher forage yield under the complete irrigation conditions. Salicylic acid treatment also reduced the damage of mild and severe stress treatments by 27 and 9%, respectively. According to the results of the experiment and CGR, using salicylic acid treatment during three foliar application periods at eight-leaf, before tassel emergence, and at the milky stage was able to reduce drought stress and is recommended for conditions similar to the present experiment. Manuscript profile
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  3 - Differential responses of two Iranian rice cultivars to arsenite toxicity
  Mahdi Yousofinia Faezeh Ghanati Markus J. Tamas Hassan Zare Maivan
  10.30495/ijpp.2018.545666
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  4 - Expression of some stress-responsive genes in tomato plants treated with ABA and sulfonamide compounds.
  Leila Zeinali Yedegari Nayer Mohammadkhani
  10.30495/ijpp.2018.539113
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  5 - تغییر در رنگدانه و ترکیب رنگ گل با استفاده از تیمار هورمونی و ساکاروز در لاله رقم ’کینگز بلاد‘
  یعقوب حجتی محمود شور علی تهرانی فر بهرام عابدی
  آزمایشی به­منظور بررسی اثر متقابل بین سه گروه از هورمون­های گیاهی و ساکارز برای تغییر ترکیب رنگ گل و متابولیت­های ثانویه گل لاله انجام شد. تغییرات مورفولوژیکی و فیزیولوژیکی گیاهان با استفاده از  سه آزمایش جداگانه و توسط تیمار اسید آبسیزیک در غلظت 5 و 10 More

  آزمایشی به­منظور بررسی اثر متقابل بین سه گروه از هورمون­های گیاهی و ساکارز برای تغییر ترکیب رنگ گل و متابولیت­های ثانویه گل لاله انجام شد. تغییرات مورفولوژیکی و فیزیولوژیکی گیاهان با استفاده از  سه آزمایش جداگانه و توسط تیمار اسید آبسیزیک در غلظت 5 و 10 میلی­گرم در لیتر، اسید جیبرلیک 300 و 500 میلی گرم در لیتر، اسید جاسمونیک 50 و 100 میکرو مولار و برهمکنش آن­ها با ساکاروز در غلظت 1 و 2 گرم در لیتر مورد ارزیابی قرار گرفت. با بررسی نمودارهای  HPLCو طیف­سنجی یوی دتکتور مشخص شد که تولید متابولیت­های ثانویه، فلاونوئید کل و ترکیب رنگدانه­های آنتوسیانین تحت تاثیر تیمارهای هورمونی قرار گرفتند. با وجود اینکه تیمار ساکاروز به تنهایی قادر به تغییرات معنی­دار در ترکیب و مقدار متابولیت­های ثانویه نبود، اما اثرات متقابل آن با تیمار هورمونی، اسید آبسیزیک و اسید جاسمونیک تغییرات معنی­داری در میزان آنتوسیانین­ها و فلاونوئید کل ایجاد کرد. همچنین هر دو هورمون آبسیزیک اسید و جاسمونیک اسید تغییرات قابل­توجهی در افزایش میزان آنتوسیانین­ها و درصد رنگدانه سیانیدین و پلاگونیدین داشتند، اما در طرف دیگر سبب کاهش معنی­دار در پارامترهای رویشی و عمر پس از برداشت گل­ها شد. در تیمار با اسید جیبرلیک 500 میلی­گرم در لیتر بدون ساکاروز افزایش قابل­توجهی در میزان آنتوسیانین، عمر گل بریده و افزایش  هر سه گروه آنتوسیانینی مشاهده شد. همچنین نتایج نشان داد بین اسید جیبرلیک و ساکاروز  یک برهمکنش منفی در تنظیم تولید آنتوسیانین­ها وجود دارد.‏ Manuscript profile
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  6 - Effect of ultraviolet radiation and abscisic acid on activity of antioxidant enzymes and physiological and morphological traits of tomato (Solanum lycopersicum L.) under different irrigation intervals
  Behnoush Rasaei Saeid Jalali-Honarmand Mokhtar Ghobadi Guisheng Zhou
  This experiment was conducted to evaluate the effect of ultraviolet radiation (UV) and abscisic acid (ABA) on the activity of antioxidant enzymes, physiological and morphological characteristics of the tomato under drought stress conditions. Experiment was conducted as More

  This experiment was conducted to evaluate the effect of ultraviolet radiation (UV) and abscisic acid (ABA) on the activity of antioxidant enzymes, physiological and morphological characteristics of the tomato under drought stress conditions. Experiment was conducted as a factorial based on randomized complete block design with four replications during two years. Experimental factors included radiation of ultraviolet radiation on three levels (control (non-radiation), UV-AB and UV-C), application of abscisic acid on two levels (non-application and application of abscisic acid with dose of 10 mg/L), and drought stress on two levels of without drought stress (complete irrigation during all growth period) and drought stress in vegetative stage (from 20 days after transplantation to flowering). The results showed that UV-AB radiation increased leaf relative water content and shoot dry weight while UV-C radiation reduced leaf relative water content and shoot dry weight compared to control (without ultraviolet radiation). By applying drought stress increased the activity of catalase and superoxide dismutase enzymes as well as soluble carbohydrate concentrations, while the relative water content of leaves and shoot dry weight decreased significantly. The amount of peroxidase enzyme activity, relative water content, soluble carbohydrates and shoot dry weight increased due to the application of abscisic acid. Based on the results of this study, it can be stated that drought and ultraviolet stresses had harmful effects on the tomato plants, and the interaction of these two above-mentioned environmental tensions was synergistic to induce protective mechanisms and defense systems. Manuscript profile
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  7 - Effect of irrigation methods and potassium fertilizer on grain yield and water use efficiency on Corn
  Abdollah Bahrani
  The experiment was conducted in Islamic Azad University - Ramhormoz Branch in 2011, based on a complete randomized block design as split-plot with three replications on SC500 corn cultivar. The main plots consisted of three irrigation methods including full, variable, a More

  The experiment was conducted in Islamic Azad University - Ramhormoz Branch in 2011, based on a complete randomized block design as split-plot with three replications on SC500 corn cultivar. The main plots consisted of three irrigation methods including full, variable, and fixed irrigation methods. Each subplot received three rates of potassium fertilizer as 0, 150 or 300 kg ha-1. The results showed that the plots received full irrigation resulted in significantly higher grain yield than other irrigation methods. The highest water use efficiency (1.29 kg m-3) was obtained in variable irrigation and the lowest one (1.08 kg m-3) was in full irrigation. Potassium application increased relative water content and grain protein percentage in variable irrigation and fixed irrigation than full irrigation treatment. Full and fixed irrigation treatments produced the lowest and the highest abscisic acid concentration at any potassium levels. Considering that the alternative irrigation method, whether variable or fixed, decreased used water and also increased water use efficiency, therefore using mentioned irrigation method can be a suitable method in deficit water condition and high water cost, could be better than full irrigation method in corn in this region.  Manuscript profile