Introducing the invasive species, Tradescantia fluminensis for the flora of Iran, with emphasis on its risk assessment

Document Type : Systematics and Biodiversity of Plants

Authors

1 Research Assistant Prof., Forests and Rangelands Research Department, Guilan Agricultural and Natural Resources Research and education Center, Agricultural Research, Education and Extension Organization (AREEO), Rasht

2 Research Assistant Prof, Tea Research Center, Horticultural Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Lahijan, Iran

3 Research Assistant Prof., Plant Protection Research Department, Gilan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran

4 Reasercher, Tea Research Center, Horticultural Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Lahijan, Iran

Abstract

During the study of the habitats and ecosystems of Gilan province (north of Ian), an invasive and alien species, namely, Tradescantia fluminensis (Commelinaceae) was observed and identified which is reported for the first time for the flora of Iran. In recent years, T. fluminensis has been developed as a weed in tea gardens and an invasive plant in the neighboring plains of the northern parts of Iran. In addition, the report of the growth localities as well as the risk assessment of the invasive plant were examined using the protocols provided by Virtue & Meland (2003), and Stone (2008). According to the risk score obtained for this invasive plant (205.86), it stands within the group of plants with "very high risk". By studying the soil of habitats, it was found that, there is a positive and significant correlation between the amount of available soil phosphorus and the wet biomass of the plant. Due to the ecological behavior of this plant, biological control and mechanical removal are the most appropriate methods of managing this plant in the northern habitats of the country.
 
 

Keywords

Article Title [Persian]

معرفی گونه مهاجم Tradescantia fluminensis برای فلور ایران، با تاکید بر ارزیابی خطرزایی آن

Authors [Persian]

  • محمود بیدارلرد 1
  • احسان کهنه 2
  • سمیه تکاسی 3
  • سید تقی میر قاسمی 4
1 استادیار پژوهش، بخش تحقیقات جنگل ها، مراتع، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گیلان، سازمان تحقیقات، آموزش و ترویج
2 استادیار پژوهش پژوهشکده چای، مؤسسه تحقیقات علوم باغبانی، سازمان تحقیقات، آموزش و ترویج کشاورزی، لاهیجان، ایران
3 استادیار پژوهش بخش تحقیقات گیاه‌پزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گیلان، سازمان تحقیقات، آموزش و ترویج
4 محقق، پژوهشکده چای، موسسه تحقیقات علوم باغبانی، سازمان تحقیقات، آموزش و ترویج کشاورزی، لاهیجان، ایران
Abstract [Persian]

طی بررسی رویشگاه­ها و بوم سازگان­های استان گیلان، گونه­ مهاجم و بیگانه Tradescantia fluminensis مشاهده و شناسایی شد که برای فلور ایران گزارش می‌شود. این گیاه در سال­های اخیر، به عنوان علف هرز در باغ­های چای و به عنوان گیاه مهاجم در مناطق همجوار جلگه­ای شمال کشور توسعه پیدا کرده است. علاوه بر آرایه‌شناسی، گزارش محل­های رویش، ارزیابی خطرزایی این گیاه مهاجم  با استفاده از پروتکل­های ارایه شده توسط ویرچو و ملاند و استون ارایه می­گردد. با توجه به نمره خطرزایی به دست آمده برای این گیاه مهاجم (86/205)، در گروه گیاهان با "ریسک خیلی بالا" قرار می­گیرد. همچنین، با مطالعه خاک رویشگاه­ها، مشخص شد که بین مقدار فسفر قابل دسترس خاک و بیوماس تر گیاه همبستگی مثبت و معنی‌داری وجود دارد. با توجه رفتار بوم‌شناختی این گیاه، کنترل بیولوژیک و حذف مکانیکی از روش‌های مناسب مدیریت این گیاه در رویشگاه‌های شمال کشور می‌باشند.
 
 

Keywords [Persian]

  • باغ­های چای
  • برگ بیدیان
  • کنترل علف ­هرز
  • گیاه مهاجم
  • گیلان

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History

  • Receive Date: 29 May 2021
  • Revise Date: 02 July 2021
  • Accept Date: 17 July 2021

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