اثر آنتاگونیستی گونه‌های تریکودرما علیه Fusarium oxysporum f.sp. lycopersici عامل پژمردگی گوجه فرنگی

تحقیقات نوین در گیاه پزشکی

شناسنامه علمی شماره، دوره 2، شماره 2 - شماره پیاپی 6، آذر 1389، صفحه 173-167   

نویسنده

حسام الدین رمضانی^*

چکیده

در این تحقیق اثر بازدارندگی پنج گونه از قارچ­های تریکودرما شامل T. harzianum, T. koningi, T. longiconis, T. hamatum and T. viride علیه قارچ عامل بیماری پژمردگی فوزاریومی گوجه­فرنگی Fusarium oxysporum f.sp. lycopersici در شرایط آزمایشگاهی مورد بررسی قرار گرفت. در بین قارچ­های مورد استفاده گونه T. harzianum بیشترین و گونه T. viride کمترین تأثیر را داشتند.
در شرایط گلخانه­ای مقایسه اثر کاهش بیماری بین خاک و بذر آغشته شده با اسپور گونه        T. harzianum انجام گردید. پوشش بذرهای گوجه­فرنگی توسط اسپورهای قارچ T. harzianumنتوانست در کاهش بیماری موثر باشد در حالیکه خاک آغشته شده با بیوماس گونه مذکور به میزان 50 گرم در 65 کیلوگرم محیط ذرت- شن به طور معناداری (2/92 درصد) قادر به کنترل بیماری گردید.

کلیدواژه‌ها

اثر بازدارندگی؛ شرایط کنترل شده و گلخانه ای؛ بیماری پژمردگی؛ کاربندازیم؛ گوجه فرنگی؛ گونه های تریکودرما

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