بررسی اثر غلظت‌های مختلف اسید سالیسیلیک در بهبود خصوصیات فیزیولوژیکی و بیوشیمیایی گیاهچه‌های پسته (Pistacia vera L.) رقم اکبری تحت تنش شوری

نوع مقاله : پژوهشی

نویسنده

گروه زیست شناسی، دانشکده علوم، دانشگاه پیام نور، تهران 3697-19395، ایران

چکیده

سالیسیلیک اسید، یک تنظیم کننده رشد گیاهی است که در تنظیم فرایندهای فیزیولوژیکی و پاسخ گیاه به شرایط نامطلوب زیستی از قبیل شوری، نقش دارد. در تحقیق حاضر سعی شده است تا تاثیر غلظت‌های مختلف سالیسیلیک اسید، شوری و برهمکنش آنها بر پارامترهای مورفولوژیکی و بیوشیمیایی در پسته بررسی شود. شوری با غلظت‌های صفر، 25، 50، 75 و 100 میلی‌مولار و سالیسلیک اسید با غلظت‌های صفر، 5/0، 1 و 5/1 میلی‌مولار به صورت محلول‌پاشی در یک طرح کاملاً تصادفی، به صورت فاکتوریل در سال 1398 در شرایط گلخانه‌ای مورد استفاده قرار گرفتند. نتایج حاصل از این تحقیق نشان داد که شوری باعث کاهش معنی‌دار رشد اندام هوایی و ریشه، کاهش وزن تر و خشک اندام هوایی و ریشه، هم‌چنین کاهش کلروفیل، کاروتنوئید و آنتوسیانین شد؛ در حالی که در گیاهان پیش تیمار شده با سالیسیلیک اسید، اثر شوری را بر پارامترهای یاد شده تعدیل کرد. با بررسی مطالب فوق می‌توان نتیجه گرفت که کاربرد سالیسیلیک اسید، باعث افزایش تحمل‌پذیری گیاه در برابر تنش شوری گشت. 

کلیدواژه‌ها


عنوان مقاله [English]

The study of the effects of different concentrations of salicylic acid on improving physiological and biochemical properties of pistachio (Pistacia vera L.) var. Akbari seedlings under salinity stress

نویسنده [English]

  • kobra mahdavian
Department of Biology, Faculty of Science, Payame Noor University, Tehran 19395-3697, Iran
چکیده [English]

Salicylic acid is a plant growth regulator that is involved in regulating physiological processes and the plants’ response to adverse biological conditions such as salinity. In the present study, an experiment was carried out to investigate the effect of different concentrations of salicylic acid, salinity, and the interaction of salicylic acid and salinity on morphological and biochemical parameters in pistachio. Salinity concentrations of 0, 25, 50, 75, and 100 mM and salicylic acid concentrations of 0, 0.5, 1, and 1.5 mM were used in the form of foliar factorial application in a completely randomized design (CRD) under greenhouse condition in 2019. The results of this study showed that salinity reduced shoot and root growth and fresh and dry weights, as well as chlorophyll, carotenoid, and anthocyanin contents while in plants pre-treated with salicylic acid, the effects of salinity on these parameters were modified. Accordingly, it can be concluded that salicylic acid application protects the plant against salt stress.

کلیدواژه‌ها [English]

  • Anthocyanin
  • carotenoids
  • Chlorophyll
  • Pistachio
  • Salinity
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