اثر تیمارهای آب شور و برخی کودهای آلی بر صفات فیزیولوژیکی و رشد گیاه لمون‌گراس (Cymbopogon citratus)

نویسندگان

1 دانشگاه شهرکرد

2 جهاد کشاورزی هرمزگان

3 مرکز تحقیقات کشاورزی و منابع طبیعی هرمزگان

10.22052/deej.2021.10.33.21

چکیده

به‌منظور بررسی تأثیر شوری آب و برخی کودهای آلی شور بر شاخص‌های فیزیولوژیکی و رشد گیاه لمون‌گراس (Cymbopogon citratus)، آزمایش گلخانه‌ای با هفت سطح شوری شامل آب غیرشور به‌عنوان شاهد، آب شور در سه سطح 4، 10و 15 دسی‌زیمنس بر متر و کودهای آلی شور در سه سطح شامل کود پودر ماهی با شوری 2/5، کود مایع ماهی با شوری 9/4 و کود فرآوری کشتارگاه طیور با شوری 6/4 دسی‌زیمنس بر متر در 4 تکرار در گلخانۀ پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی هرمزگان در قالب طرح کاملاً تصادفی در 4 تکرار اجرا شد. در این پژوهش، صفات فیزیولوژیک رشد شامل سطح برگ، وزن تر و خشک برگ، وزن تر و خشک ریشه، ارتفاع بوته، تعداد پنجه و کلروفیل کل مورد بررسی قرار گرفتند. نتایج پژوهش نشان داد شوری آب و کودهای آلی بر تمام صفات مورد بررسی اثر معنی‌دار داشت. بیشترین تأثیر منفی را تیمار آب آبیاری با شوری 15دسی‌زیمنس بر متر بر روی تمامی صفات مورد مطالعه داشت، و بیشترین تأثیر بر وزن خشک ریشه به میزان 37/0 گرم  مشاهده شد. از طرفی تیمار کود پودر کشتارگاه طیور با شوری 6/4 دسی‌زیمنس بر متر باعث بهبود تمام صفات فیزیولوژیک رشدی نسبت به شاهد به غیر از تعداد پنجه (با میانگین ۲/۴ عدد) در بوته شد. به‌طور کلی، نتایج نشان داد گیاه لمون‌گراس نسبت به شوری بالای 5 دسی‌زیمنس بر متر حساس است اما شوری کمتر از 5 دسی‌زیمنس بر متر را تحمل می‌کند و امکان استفاده از کودهای آلی نسبتاً شور مورد مطالعه به‌عنوان منبع غذایی در زراعت این گیاه وجود دارد.

کلیدواژه‌ها


عنوان مقاله [English]

Investigating the Effect of Saline Water Treatments and Some Organic Fertilizers on lemongrass' (Cymbopogon citratus) Physiological Features and Growth

نویسندگان [English]

  • Mahmoud Reza Tadayon 1
  • Gholam Reza Nazar Nezhad 2
  • Abdol Razagh Danesh Shahraki 1
  • Abdol Hamid Hajebi 3
1
2
3
چکیده [English]

Introduction: Salinity is a basic non-living environmental factor that reduces the yield worldwide. In arid and semi-arid regions, the salinity of water and soil limits crop production. Therefore, it is crucially important to assess the salinity tolerance of medicinal herbs if they are to be cultivated in saline areas.

Materials and Methods: To investigate the effect of water salinity and some saline organic fertilizers on the lemongrass' (Cymbopogon citratus) physiological features and growth, a greenhouse experiment was carried out in the research greenhouse of Hormozgan Agricultural and Natural Resources Research Center through a completely randomized design with four replications at seven salinity levels including non-saline water as a controlling factor, saline water at 4, 10, and 15 ds/m levels, and saline organic fertilizers at three levels including fish meal fertilizer with salinity rate of 5/2, liquid fish manure with salinity rate of 4/9, and poultry slaughterhouse fertilizer with salinity rate of 4/6 ds /m. Moreover, the physiological growth features, including the leaf area, the leaf's fresh and dry weight, the root's fresh and dry weight, the plant's height, the number of tillers, and total chlorophyll were investigated.

Discussion and Conclusion: The study's results indicated that water salinity and organic fertilizers had a significant effect on all studied features. It was also found that treating Irrigation water with a salinity of 15 ds /m had the most negative effect on all studied features, with the root's dry weight affected the most. On the other hand, treating poultry slaughterhouse fertilizer with a salinity of 4/6 ds/m improved all physiological growth features compared to the control factor except the number of tillers per plant. The results also showed that lemongrass was sensitive to over 5 ds/m salinity but tolerated less than 5 ds/m salinity and that it was possible to use the relatively saline organic fertilizers studied as a food source in cultivating this plant.

کلیدواژه‌ها [English]

  • Salinity
  • Medicinal Herb
  • Poultry Slaughterhouse
  • Liquid Fertilizer
  • Fish Powder
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