تاثیر تیمار اسیدآمینه گابا و نانواکسیدروی بر جذب عناصر و برخی ویژگی‌های مورفولوژیکی و فیتوشیمیایی فلفل تند (Capsicum annuum)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ارومیه

2 گروه باغبانی، دانشکده کشاورزی، دانشگاه ارومیه

3 گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ارومیه

10.30466/asr.2026.56162.1884

چکیده

سبزیجات به‌عنوان منبع کلیدی بسیاری از ترکیبات با ارزش، نقش مهمی در تضمین امنیت غذایی و تغذیه انسان دارند. اخیرا استفاده از ترکیبات و عناصر به صورت محلول‌پاشی باعث بهبود کیفیت و رشد گیاهان شده است. در این میان گاما آمینوبوتیریک اسید (GABA) یک اسید آمینه غیرپروتئینی و عنصر روی به عنوان یک ماده مغذی ضروری برای گیاهان و انسان است که نقش مهمی در متابولیسم گیاهان ایفا می‌کنند. این پژوهش بصورت فاکتوریل و در قالب طرح کاملا تصادفی با دو تیمار محلول‌پاشی شامل نانواکسیدروی و گابا در سه تکرار اجرا شد و تاثیر آنها بر صفات رشدی و فیتوشیمیایی برگ و میوه گیاه فلفل تند (C. annuum) مورد بررسی قرار گرفت. در این مطالعه صفات مورفولوژیکی و فیتوشیمیایی(در بافت برگ و میوه) و برخی عناصر در بافت برگ مورد بررسی قرار گرفتند. در تمامی صفات اندازه‌گیری شده، تیمارهای اعمال شده نسبت به شاهد تفاوت معنی‌داری نشان دادند. نتایج بررسی صفات مورفولوژیک نشان داد بیشترین وزن تر میوه (60/12 گرم) در تیمار یک میلی‌مولار گابا به همراه غلظت صفر پی‌پی‌ام نانواکسیدروی و همچنین بالاترین میزان وزن خشک میوه (47/2 گرم) در تیمار دو میلی‌مولار گابا به همراه غلظت صفر پی‌پی‌ام نانواکسیدروی بدست آمد. بیشترین محتوای فنول در برگ و میوه به ترتیب 30/51 ( تیمار 2 میلی‌مولار گابا) و 67/21 میلی‌گرم گالیک اسید بر گرم وزن تر در تیمار ترکیبی دو میلی‌مولار گابا و 150 پی‌پی‌ام نانواکسیدروی بدست آمد. بیشترین مقدار فلاونوئید برگ و میوه به ترتیب 32/6 و 91/4 میلی‌گرم کوئرستین بر گرم وزن تر در تیمار ترکیبی دو میلی‌مولار گابا و 150 پی‌پی‌ام نانواکسیدروی ثبت گردید. بیشترین فعالیت آنتی‌اکسیدانی به روش DPPH در برگ و میوه به‌ترتیب 71/77 و 55/46 درصد مشاهده شد. نتایج بدست آمده نشان داد در اکثر صفات فیتوشیمیایی کاربرد 2 میلی‌مولار گابا به همراه 150 پی‌پی‌ام نانواکسید روی باعث افزایش سنتز ترکیبات شده است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of Gamma-aminobutyric acid and Nano zinc Oxide Treatment on Element Uptake, and some Morphological and Phytochemical Characteristics of Hot Pepper (Capsicum annuum)

نویسندگان [English]

  • Amer Murad Mohammed Al-Sultani 1
  • Mohammad Fattahi 2
  • Javad Rezapour Fard 3
1 Department of Horticultural Science, Faculty of Agriculture, Urmia University, Urmia, Iran
2 Department of Horticultural Science, Faculty of Agriculture, Urmia University, Urmia, Iran
3 Department of Horticultural Science, Faculty of Agriculture, Urmia University, Urmia, Iran
چکیده [English]

Vegetables, as a key source of many valuable compounds, play an important role in ensuring food security and human nutrition. Recently, the use of compounds and elements as foliar sprays has improved the quality and growth of plants. Among them, gamma-aminobutyric acid (GABA) is a non-protein amino acid and zinc is an essential nutrient for plants and humans, which play an important role in plant metabolism. This research was carried out as a factorial and completely randomized design with two foliar spray treatments including Nano ZnO and GABA in three replications and their effects on the growth and phytochemical traits of leaves and fruits of hot pepper plant (C. annuum) were investigated. In this study, morphological and phytochemical traits (in leaf and fruit tissue) and some elements in leaf tissue were investigated. In all measured traits, the applied treatments showed significant differences compared to the control. The results of morphological traits showed that the highest fruit fresh weight (12.60 g) was obtained in the treatment of 1 mM GABA with a concentration of 0 ppm Nano ZnO, and the highest fruit dry weight (2.47 g) was obtained in the treatment of 2 mM GABA with a concentration of 0 ppm Nano ZnO. The highest phenol content in leaves and fruits was 51.30 (2 mM GABA treatment) and 21.67 mg Gallic acid/gr FW in the combined treatment of 2 mM GABA and 150 ppm Nano ZnO. The highest flavonoid content in leaves and fruits was 6.32 and 4.91 mg quercetin/ gr FW in the combined treatment of 2 mM GABA and 150 ppm Nano ZnO, respectively. The highest antioxidant activity by DPPH method was observed in leaves and fruits, 77.71 % and 46.55 %, respectively. The results showed that in most phytochemical traits, the application of 2 mM GABA along with 150 ppm Nano ZnO increased the synthesis of compounds.

کلیدواژه‌ها [English]

  • Antioxidant activities
  • Copper
  • Manganese
  • Total phenols
  • Total flavonoids
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