اثر تاریخ و تراکم کاشت بر عملکرد و میزان اسانس گیاه دارویی نعناع فلفلی

نوع مقاله : علمی - پژوهشی

نویسندگان

1 دانشگاه آزاد اسلامی ماکو

2 دانشگاه تبریز

چکیده

به منظور بررسی اثر تاریخ و تراکم کاشت بر عملکرد و میزان اسانس نعناع فلفلی آزمایشی در ایستگاه تحقیقاتی دانشکده کشاورزی دانشگاه تبریز در سال زراعی 83-1382 به اجراء درآمد. در این پژوهش اثر تاریخ کاشت در دو سطح (اواخر اردیبهشت و اواسط خرداد) و تراکم بوته در چهار سطح (8، 12، 16 و 20 بوته در متر مربع) به صورت آزمایش فاکتوریل بر مبنای طرح پایه بلوک های کامل تصادفی با سه تکرار در طی دو چین مورد بررسی قرار گرفت. نتایج حاصل از چین اول نشان داد که بیشترین درصد اسانس برگ مربوط به تاریخ کاشت اواسط خرداد و تراکم 8 بوته در متر مربع با 47/4 درصد بود و بیشترین درصد اسانس بوته نیز مربوط به تاریخ کاشت دوم با 92/2 درصد مشاهده شد، ولی عملکرد اسانس در چین اول تحت تأثیر عوامل مورد بررسی قرار نگرفت. نتایج حاصل از چین دوم نیز نشان داد که بیشترین درصد اسانس بوته مربوط به تاریخ کاشت دوم و تراکم 12 بوته در مترمربع و برابر با 96/0 درصد بوده است. بیشترین عملکرد اسانس نیز در چین دوم از گیاهان کاشته شده در تاریخ کاشت اول بدست آمد. همچنین نتایج نشان داد که کشت دیر هنگام گیاه نعناع فلفلی باعث کاهش عملکرد تر و خشک گیاه در هر دو زمان برداشت شد.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of sowing time and plant density on yield and essential oil production of medicinal plant, peppermint (Mentha piperita L.)

نویسندگان [English]

  • S. Jabarpour 1
  • S. Zehtab –Salmasi 2
  • H. Alyari 2
  • A. Javanshir 2
  • M.R. Shakiba 2
1 Islamic Azad University, Maku Branch
2 University of Tabriz
چکیده [English]

In order to investigate the effects of two sowing time (middle of May and early June) and four plant density (8, 12, 16 and 20 plants.m-2) on yield and essential oil content of peppermint at two cutting stages, an experiment was conducted at the Research Farm of the Faculty of Agriculture, University of Tabriz during growing season of 2003-2004. These treatments were performed as factorial based of randomized complete block design with three replications. The result of the first cutting showed that plant sowing at the early June and eight plants.m-2densities had the highest leaf (4.47%) and plant (2.92%) essential oil percentage, but these factors and their interaction effects did not effect on the essential oil yield. In the second cutting, the highest plant essential oil was observed in plant sowing at early June and 12 plants/m2 densities. The highest essential oil yield in second cutting produced in middle of May sowing time. The results of two cutting stages showed that the fresh and dry yield decreased by delaying in sowing time.

کلیدواژه‌ها [English]

  • First cutting
  • Leaf essential oil percentage
  • Plant essential oil percentage
  • Second cutting
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