کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8892752 | 1628764 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficacy of electrolytically-derived disinfectant against dispersal of Fusarium oxysporum and Rhizoctonia solani in hydroponic tomatoes
ترجمه فارسی عنوان
اثربخشی ضدعفونی کننده الکترولیتی بر ضد پراکندگی فوزاریوم اکسیشاپوروم و ریزوکتونیا سولانی در گوجهفرنگی
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کلمات کلیدی
بهداشت کلر آزاد گردن عروق، هیپوکلریت پتاسیم، راه حل تغذیه،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش باغداری
چکیده انگلیسی
First, we determined the efficacy of the disinfectant to inactivate F. oxysporum and R. solani in vitro. The electrolytically generated potassium hypochlorite (KClO) was tested at five concentrations of free chlorine (0.2, 0.5, 0.8, 1.0, 2.0â¯mg/L) in nutrient solutions of pH 5.5, 6.0 and 6.5 with four contact times (5, 30, 60, 120â¯min). Best sanitation was achieved in nutrient solution at pH 6.0. In vitro, F. oxysporum required 2â¯mg/L at 30â¯min for complete inactivation whereas chlorination had only a minimal effect on viability of R. solani. Subsequent trials under practical conditions applied the disinfectant via a new sensor-based disinfection procedure. Potassium hypochlorite solution produced on site and injected into a recirculating nutrient solution once a week for 60â¯min at a free chlorine concentration of 0.5â¯mg/L (ORP 780â¯mV) inhibited the dispersal of F. oxysporum and R. solani during the entire test period of 16 weeks. In contrast all tomato test plants irrigated with untreated nutrient solution became infected with F. oxysporum and a third of them additionally with R. solani. At the applied dose no plant damage occurred. Thus, the treatment proved to be effective and applicable to prevent dispersal of fungal pathogens by nutrient solution under simulated field conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scientia Horticulturae - Volume 234, 14 April 2018, Pages 116-125
Journal: Scientia Horticulturae - Volume 234, 14 April 2018, Pages 116-125
نویسندگان
Marlon Hans Rodriguez, Martina Bandte, Thomas Gaskin, Gerhard Fischer, Carmen Büttner,