تأثیر دگرآسیبی عصاره نرگس (Narcissus tazetta L.) برخصوصیات جوانه‌زنی، رشدی و فیزیولوژیک اگروپیرون (Agropyron repens) و یولاف وحشی (Avena fatua)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران

2 دانشجوی کارشناسی ارشد علوم باغبانی، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران

چکیده

این تحقیق با هدف بررسی اثرات دگرآسیبی عصاره آبی سوخ و برگ نرگس (Narcissus tazetta L.) بر برخی خصوصیات جوانه‌زنی، رشدی و فیزیولوژیکی دو علف‌هرز اگروپیرون (Agropyron repens) و یولاف وحشی (Avena fatua) انجام شد. برای این منظور دو آزمایش مجزا در قالب طرح کاملاً تصادفی با سه تکرار در شرایط آزمایشگاه و گلخانه در سال 1396 اجرا شد. تیمارها شامل سه سطح عصاره آبی سوخ و برگ نرگس (1، 2 و 3 درصد وزنی- حجمی) به­همراه شاهد (آب مقطر) بود. نتایج نشان داد افزایش غلظت عصاره سوخ و برگ سبب کاهش درصد و سرعت جوانه‌زنی بذور، طول ریشه، ارتفاع گیاه و محتوای کلروفیل a، b و کل اگروپیرون و یولاف شد ولی قندهای محلول کل و فعالیت آنتی اکسیدانت افزایش یافتند. غلظت 3 درصد عصاره سوخ مقادیر درصد جوانه‌زنی، طول ریشه، ارتفاع گیاه و کلروفیل کل را در گیاه اگروپیرون به­ترتیب 81، 42، 38 و 49 درصد و در گیاه یولاف به­ترتیب 63، 44 ، 36 و 40 درصد در مقایسه با تیمار شاهد کاهش داد. نتایج این تحقیق نشان داد که می‌توان از اثرات دگرآسیبی عصاره سوخ و برگ نرگس برای کنترل بیولوژیک این دو علف‌‌هرز استفاده کرد.

کلیدواژه‌ها


عنوان مقاله [English]

Allelopathic effects of narcissus (Narcissus tazetta L.) extract on germination, growth and physiological characteristics of couch grass (Agropyron repens) and wild oat (Avena fatua)

نویسندگان [English]

  • Hasan Bayat 1
  • Ali Naseri Moghaddam 2
  • Mohammad Hossein Aminifard 1
1 Assistant Professor, Department of Horticultural Science, Faculty of Agriculture, University of Birjand, Birjand, Iran
2 MSc Student, Department of Horticultural Science, Faculty of Agriculture, University of Birjand, Birjand, Iran
چکیده [English]

This experiment was conducted to evaluate the allelopathic effects of bulb and leaf aqueous extracts of narcissus (Narcissus tazetta L.) on germination, growth and physiological characteristics of two weed species namely couch grass (Agropyron repens) and wild oat (Avena fatua). For this purpose, two seprate experiments were conducted in a completely randomized design with three replications in laboratory and greenhouse conditions in 2017. Treatments included three levels of leaf and bulb extracts (1, 2 and 3 % w/v) along with control (distilled water). The results showed that increasing the concentrations of leaf and bulb extracts reduced germination percentage and germination rate of the seeds, root length, plant height and chlorophyll content a, b and total of couch grass and wild oat, but total soluble sugars and antioxidant activity increased. The concentration of 3 % of the bulb extract reduced seed germination percentage, root length, plant height and total chlorophyll in couch grass by 81, 42, 38 and 49 %, and in wild oat by 63, 44, 36 and 40 % compared to the control plant, respectively. The results of this study showed that can be used the allelopathic effects of leaf and bulb extracts of narcissus in order to biological control of these two weeds.

کلیدواژه‌ها [English]

  • Antioxidant Activity
  • Bulb
  • Chlorophyll Content
  • Greenhouse
  • Leaf
  • Total Soluble Sugar
  • Weed
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