Effect of gibberellin and indole-3-butyric acid on germination indices and vigor of scallion (Allium fistulosum) seeds

Document Type : Research Paper


Khorasan Razavi Agricultural and Natural Resources Research and Education Center, AREEO, Mashhad, I. R. Iran



Scallion (Allium fistulosum) is one of the essential edible vegetables with various medicinal uses. The seeds of this plant have low germination power, which may disappear due to storage conditions. In this study, the germination characteristics of scallion seeds were experimented with a factorial arrangement based on a completely randomized design with three replications in the physiology laboratory of Khorasan Razavi Agricultural and Natural Resources Research and Education Center in 2019. The first factor was indole-3-butyric acid (IBA) at 0 (or control), 100, and 200 ppm, and the second factor was gibberellin (GA3) at the same concentrations. The results showed that the maximum germination percentage was obtained by 200 ppm of gibberellin without using IBA. The maximum rootlet dry weight (7.02 mg) was recorded with 100 ppm of GA3 and IBA. The maximum allometric coefficient was obtained using 100 ppm IBA and 200 ppm GA3. The maximum seed vigor index was observed at 100 and 200 ppm of GA3 with 0 ppm of IBA (2.18 and 2.33, respectively). The maximum seedling vigor length index (0.799) and seedling vigor weight index (6.77 ) were obtained when 200 ppm of GA3 was applied with 0 ppm of IBA. In general, the results showed that the use of different concentrations of gibberellin has a significant effect on increasing germination and vigor index in scallion seeds.


Article Title [Persian]

اثر جیبرلین و ایندول-3- بوتیریک اسید بر مؤلفه‌های جوانه‌زنی و بنیه بذرهای پیازچه (Allium fistulosum L.)

Authors [Persian]

  • سید فاضل فاضلی کاخکی
  • ناصر بیک زاده
مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خراسان رضوی، مشهد، ج. ا. ایران
Abstract [Persian]

پیازچه (Allium fistulosum) یکی از سبزی‌های خوراکی ضروری با مصارف دارویی مختلف است. بذرهای این گیاه قدرت جوانه‌زنی پایینی داشته که ممکن است به دلیل شرایط انبار، از بین بروند. در این مطالعه در سال 1398، خصوصیات جوانه‌زنی بذرهای پیازچه به صورت فاکتوریل در قالب طرح کاملاً تصادفی در سه تکرار در آزمایشگاه فیزیولوژی مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خراسان رضوی مورد آزمایش قرار گرفت. فاکتور اول ایندول-3-بوتیریک اسید (IBA) در غلظت‌های صفر (یا شاهد)، 100 و 200 پی‌پی‌ام و فاکتور دوم جیبرلین (GA3) در سه غلظت مذکور بود. نتایج نشان داد که بیش‌ترین درصد جوانه‌زنی از غلظت 200 پی‌پی‌ام جیبرلین بدون استفاده از هورمون IBA حاصل شد. در استفاده از غلظت 100 پی‌پی‌ام هر دو هورمون بکار برده شده، بیش‌ترین وزن خشک ریشه‌چه (7/02 میلی­گرم) ثبت شد. با استفاده از غلظت‌های 100 پی‌پی‌ام IBA و 200 پی‌پی‌ام GA3 بیش‌ترین مقدار ضریب آلومتری حاصل شد. بیش‌ترین شاخص بنیه بذر  (به ترتیب 2/18/2 و 2/33)در 100 و 200 پی‌پی‌ام GA3 همراه با صفر پی‌پی‌ام IBA مشاهده شد. بیش‌ترین شاخص طولی (0/799) و وزنی (6/77 )  بنیه گیاهچه زمانی حاصل شد که 200 پی‌پی‌ام GA3 به‌کار برده شد و از IBA استفاده نشد. به طور کلی نتایج نشان داد که استفاده از غلظت‌های مختلف جیبرلین تاثیر معنی‌داری بر افزایش جوانه‌زنی و شاخص بنیه بذرهای پیازچه دارد. 

Keywords [Persian]

  • ضریب آلومتری
  • شاخص بنیه بذر
  • شاخص وزنی بنیه گیاهچه
  • وزن خشک گیاهچه
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