ارزیابی اثرات محلول پاشی اسید سالیسیلیک و نانو کلات آهن بر برخی خصوصیات بیوشیمیایی و مورفوفیزیولوژیکی بنفشه معطر (odorata L. Viola)

فیزیولوژی محیطی گیاهی

دوره 17، شماره 66، تیر 1401، صفحه 141-162   

نوع مقاله: پژوهشی

شناسه دیجیتال (DOI): 10.30495/iper.2021.679524

نویسندگان

اسماء حسنوند¹؛ لیلا فهمیده^{* 2}؛ فاطمه بیدرنامنی³

¹گروه گیاهان دارویی، ادویه‌ای و نوشابه‌ای دانشگاه زابل، زابل، ایران

²گروه اصلاح نباتات و بیوتکنولوژی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

³گروه زراعت و اصلاح نباتات، پژوهشکده کشاورزی، پژوهشگاه زابل، زابل، ایران

چکیده

به منظور ارزیابی تأثیر غلظت‌های مختلف اسید سالیسیلیک و نانو کلات آهن بر میزان موسیلاژ، کربوهیدرات­ها و برخی صفات مورفوفیزیولوژیکی گیاه بنفشه معطر، آزمایشی به صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی با سه تکرار انجام شد. پس از کشت بذرها در گلدان، تیمارهای آزمایشی شامل محلول­پاشی اسید سالسیلیک (در سه سطح  صفر (شاهد)، 75/0 و 5/1 میلی‌گرم در لیتر) و نانو کلات آهن (در دو سطح صفر (شاهد) و 1 گرم در لیتر) در مرحله گیاهچه­ای اعمال شد. نتایج حاصله نشان داد که بیشترین مقادیر کاروتنوئیدها، کلروفیل a، b و کل، پروتئین و فعالیت کاتالاز در گیاهان محلول­پاشی شده با 5/1 میلی‌گرم در لیتر اسید سالسیلیک حاصل شد و همچنین بیشترین مقدار عناصر معدنی سدیم، مس، موسیلاژ و وزن‌تر بوته هم در تیمار محلول­پاشی یک گرم در لیتر نانو کلات وجود داشت. سایر نتایج نیز مشخص ساخت که بیشترین مقدار کربوهیدرات در محلول­پاشی تیمار 5/1 میلی‌گرم در لیتر اسید سالسیلیک و یک گرم در لیتر نانو کلات آهن بدست آمد. در این مطالعه  افزایش 12 و 19 درصدی ارتفاع در بوته های محلول­پاشی با اسید سالسیلیک (5/1 میلی‌گرم در لیتر) و نانو کلات آهن (1 گرم در لیتر) نسبت به شاهد مشاهده شد. بر اساس نتایج حاصله می­توان تیمار اسید سالسیلیک و نانو کلات آهن را به منظور افزایش خصوصیات رشدی و داروئی این گیاه پیشنهاد نمود.
 

کلیدواژه‌ها

القا کننده؛ بنفشه معطر؛ رنگیزه‌های فتوسنتزی؛ کربوهیدرات؛ موسیلاژ

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