Management of root rot diseases and improvement growth and yield of green bean plants using plant resistance inducers and biological seed treatments.
Year: 2015
Type: article
Abstract: This study was carried out to evaluate the efficiency of using Trichoderma harzianium (bio control agent) in combination with sorbic and benzoic acid (chemical resistance inducers) in management of root rot diseases on green bean plants caused Rhizoctonia solani and Fusarium solani . In green house, combination between T. harzianium and sorbic and/or benzoic acid at treatments were more effective in control Rhizoctona and Fusarium root rots on bean plants, than each of them separately. Seed soaking in Sorbic acid 5% and /or Benzoic acid at 5% + Seed coating with T. harzianum treatments cause reduction in Rhizcotonia root rot reach to 70.2% ; 68.4% and 63.6% ; 61.2%, and reach to 68.2 ; 65.8 % and 70.4;68.8 % of Fusarium root rot at pre and of post emergence stages respectively. In field trails, seed coating T. harzianum combined with sorbic acid and/or benzoic acid at 5.0% as well as fungicide were the most effective treatment, they reduce root rot diseases by 74.7, 70.9,72 .2% and 70.7, 70.4,72.4% of pre emergence damping off and root rot respectively. Moreover, such treatments improve plant growth, total yield and its components as well as green pod nutritional value parameters of green bean superior to fungicides seed treatment. The use of biological seed treatment combined with chemical plant resistance inducers might be considered as safe, cheap and easily applied method for controlling such soil-borne plant pathogens considering the avoidance of environmental pollution and the side effect of pesticide application.
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W2196236599