Biological control of damping-off and root rot disease caused by Rhizoctonia solani on cucumber plants
Hassan, M., Ahmed, H., Kamel, S., Abd El-Hamed, W., Yousef, H. (2021). Biological control of damping-off and root rot disease caused by Rhizoctonia solani on cucumber plants. EKB Journal Management System, 35(3), 525-541. doi: 10.21608/fjard.2021.225257
Mohamed Hassan; Hoda Ahmed; Said Kamel; Wallaa Abd El-Hamed; Heba Yousef. "Biological control of damping-off and root rot disease caused by Rhizoctonia solani on cucumber plants". EKB Journal Management System, 35, 3, 2021, 525-541. doi: 10.21608/fjard.2021.225257
Hassan, M., Ahmed, H., Kamel, S., Abd El-Hamed, W., Yousef, H. (2021). 'Biological control of damping-off and root rot disease caused by Rhizoctonia solani on cucumber plants', EKB Journal Management System, 35(3), pp. 525-541. doi: 10.21608/fjard.2021.225257
Hassan, M., Ahmed, H., Kamel, S., Abd El-Hamed, W., Yousef, H. Biological control of damping-off and root rot disease caused by Rhizoctonia solani on cucumber plants. EKB Journal Management System, 2021; 35(3): 525-541. doi: 10.21608/fjard.2021.225257

Biological control of damping-off and root rot disease caused by Rhizoctonia solani on cucumber plants

Fayoum Journal of Agricultural Research and Development
Article 8, Volume 35, Issue 3, September 2021, Page 525-541  XML PDF (874.47 K)
Document Type: Research articles.
DOI: 10.21608/fjard.2021.225257
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Authors
Mohamed Hassan* 1; Hoda Ahmed1; Said Kamel2; Wallaa Abd El-Hamed2; Heba Yousef2
1Botany Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt.
2Plant Pathology Research Institute, Agriculture Research Center, Giza, Egypt.
Abstract
Damping-off and root rot is a serious disease infecting cucumber on both seedling and adult stages under protected cultivation causes severe losses in the cucumber yield. Thirteen biocontrol agents i.e. six Trichoderma spp., five Bacillus spp. and two species of actinomyces were tested for their ability to control of cucumber damping-off and root rot disease caused by Rhizoctonia solani in vitro and in vivo and their ability to promoting growth of cucumber plants. Trichoderma asperellum, Bacillus subtilis1, Pseudomonas fluorescens and Streptomyces spp1 act to be highly efficient bioagnts to inhibit mycelial growth of Rhizoctonia solaniin in vitro. All tested bio agents of T. asperellum, B. subtilis1, P. fluorescens and Streptomyces spp1 significantly reduced pre- and post-emergence damping off and root rot disease incidence causing by R. solani in both Fayoum and Giza governorates experiments under greenhouse conditions as seed and seedling treatment. Also, these treatments significantly increase growth parameters and yield components compared with the check treatment. All treatments had considerable increase in the peroxidase, polyphenol oxidase, catalase enzymes and total phenol activities that play an important role in plant defense mechanisms against pathogens infection. These results proved that bioagent i.e. Pseudomonas flourecens is an efficient method as to control the causal pathogen of damping-off and root rot of cucumber.

Keywords
bioagents; cucumber; damping off; Rhizoctonia solani; enzymatic activity; root rot
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