کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4503913 1624261 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Concentration and cultivar effects on efficacy of CLO-1 biofungicide in controlling Fusarium head blight of wheat
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Concentration and cultivar effects on efficacy of CLO-1 biofungicide in controlling Fusarium head blight of wheat
چکیده انگلیسی


• CLO-1 (Clonostachys rosea strain ACM941) controls Fusarium head blight in wheat.
• CLO-1 biofungicide was to large extent as effective as conventional fungicides.
• CLO-1 biofungicide was most effective on moderately resistant cultivars.

Fusarium head blight (FHB) is a destructive disease of wheat in Canada and Clonostachys rosea strain ACM941 has been identified as a promising biological control agent for managing FHB. In the present research the concentration and cultivar effects on the efficacy of CLO-1, a formulated product of C. rosea strain ACM941, in controlling FHB and deoxynivalenol (DON) contamination in wheat was studied. Of the eight concentrations ranging from 104 to 108 cfu mL−1 evaluated, significant effects were generally observed for concentrations at or above 106 cfu mL−1 in the greenhouse and field trials in 2009 and 2010. In the greenhouse, CLO-1 reduced the area under the disease progress curve (AUDPC) by 65–83%, Fusarium damaged kernels (FDK) by 68–92%, and DON by 51–95%. Under field conditions, CLO-1 reduced FHB index by 30–46%, FDK by 31–39%, and DON by 22–33%. These effects were numerically lower but not significantly different from those of the registered fungicide Folicur® (tebuconazole) used in these trials. When applied onto wheat cultivars differing in resistance to FHB in field trials in 2009 and 2010, CLO-1 was most effective on the moderately resistant cultivar AC Nass (representing the highest level of resistance commercially available) and least effective on the highly susceptible cultivar AC Foremost. Results of this study suggest that CLO-1 is a promising biocontrol product that may be used in combination with cultivar resistance for managing FHB in wheat.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biological Control - Volume 73, June 2014, Pages 2–7
نویسندگان
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