اثر نظام های مختلف کوددهی (زیستی و نانو زیستی) بر رشد، غلظت عناصر، عملکرد پیکره رویشی و اسانس رزماری (Rosmarinus officinalis L.) تحت تنش خشکی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه زابل- دانشجو

2 هیأت علمی دانشگاه زابل

3 معاون پژوهشی پژوهشگاه دانشگاه زابل

4 دانشیار زراعت، گروه زراعت، دانشکده کشاورزی، دانشگاه زابل

چکیده

آزمایشی در سال‌های 1393-1395 به‌صورت کرت‌های یک‌بار خرد شده در قالب طرح بلوک‌های کامل تصادفی در سه تکرار در پژوهشکده کشاورزی دانشگاه زابل اجرا شد. تنش خشکی در چهار سطح شامل 30، 50، 70 و 90 درصد آب قابل دسترس گیاه به‌عنوان عامل اصلی و کود در چهار سطح شامل نانوبیومیک، نیتروکسین، میکوریزا و عدم کاربرد کود به‌عنوان عامل فرعی در نظر گرفته شد. اثر متقابل سال، تنش خشکی و کود برای کلیه صفات مورد بررسی معنا‌دار شد. در تیمار آبیاری با 90 درصد رطوبت قابل دسترس و کود نانوبیومیک در سال دوم، بیشترین ارتفاع بوته (75/37 سانتی‌متر)، تعداد شاخه در بوته (01/47 شاخه)، وزن تر و خشک شاخ و برگ (به‌ترتیب60/86 و 82/31 گرم در بوته)، عملکرد پیکره رویشی (38/1750 کیلوگرم در هکتار)، درصد نیتروژن و فسفر برگ (35/13 و 742/0 درصد) به‌دست آمد. بالاترین درصد پتاسیم برگ (07/7 درصد)، درصد اسانس (575/1 درصد) و عملکرد اسانس (22/31 و 93/1716 گرم در بوته/کیلوگرم در هکتار) به تیمار آبیاری با 30 درصد رطوبت قابل دسترس و کود نانوبیومیک در سال دوم تعلق داشت. ترکیبات 1، 8 سینئول، -ترپینئول و لیمونن مهم‌ترین ترکیبات اسانس گیاه رزماری بودند. تنش خشکی موجب تغییر و کودهای نانوزیستی و زیستی موجب افزایش ترکیبات اسانس رزماری شدند. کود نانوبیومیک نسبت به سایر کودهای زیستی، توانست تنش خشکی را بهتر تعدیل نماید و موجب بهبود رشد، عملکرد پیکره رویشی و اسانس و ترکیبات اسانس رزماری شود. بنابراین، در راستای نیل به اهداف کشاورزی پایدار استفاده از آن جهت بهبود ویژگی‌های زراعی و بیوشیمیایی رزماری توصیه می‌گردد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of different fertilization systems (bio and nano-bio) on growth, elements concentration, foliage and essential oil yield of rosemary (Rosmarinus officinalis L.) under drought stress

نویسندگان [English]

  • roghayeh mohammadpour vashvaei 1
  • Ahmad Ghanbari 2
  • Barat Ali Fakheri 3
  • Mahmood Ramroudi 4
1 university of zabol- student
2 Member of science at zabol university
3 University of Zabol
4 Associate Professor of Agronomy, Department of Agronomy, Faculty of Agriculture, University of Zabol.
چکیده [English]

In this regard, an experiment was conducted in a split plot based on randomized complete block design with three replications, at the Agricultural Research Institute of Zabol University, during growing season of 2014, 2015 and 2016 years. Main plots consisted of irrigation with 30, 50, 70 and 90% of available water and subplots including plant nutrition with bioumik, nitroxin, mycorrhiza, and no fertilizer. Interaction of year, drought stress and fertilizer was significant for all studied traits. The highest plant height (37.75 cm), number of branches per plant (47.01), fresh and dry weight of herb (86.60 and 31.82 g.plant-1, respectively), foliage yield (1750 Kg.ha-1) and leaf nitrogen and phosphorus (13.35 and 0.742%) were belonged to treatment of irrigation with 90% available water and bioumik fertilizer in second year. The maximum potassium concentration (7.07%) and essential oil percentage (1.575%) and yield (31.22 and 1716.93 g.plant-1/Kg.ha-1) were obtained by irrigation with 30% available water and bioumik fertilizer in second year. Compounds of 1, 8 cineole, b-terpineol and limonene were the most important compounds of rosemary essential oil. Drought stress was caused changes and bio and nano bio-fertilizers were increased essential oil composition of rosemary. Bioumik than other fertilizers, amend better drought stress and improved the growth, foilage and essential oil yield and its compounds of rosemary. Thus, in order to achieve sustainable agriculture, it is recommended to improve agronomic and biochemical properties of rosemary.

کلیدواژه‌ها [English]

  • Bioumik
  • Rosemary
  • water deficit stress
  • volatile oil
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