Suppression of Rhizoctonia solani Damping-off in Soybean (Glycine max L.) by Plant Growth Promoting Rhizobacteria Strains
Omara, A., Nour El-Din, M., Hauka, F., Hafez, A., El-Nahrawy, S., Ghazi, A., Elsakhawy, T., Fusco, V. (2018). Suppression of Rhizoctonia solani Damping-off in Soybean (Glycine max L.) by Plant Growth Promoting Rhizobacteria Strains. EKB Journal Management System, 2(2018), 39-49. doi: 10.21608/jenvbs.2018.3231.1024
Alaa El-Dein Omara; Mohamed Nour El-Din; Fathi Hauka; Aida Hafez; Sahar El-Nahrawy; Azza Ghazi; Tamer Elsakhawy; Vincenzina Fusco. "Suppression of Rhizoctonia solani Damping-off in Soybean (Glycine max L.) by Plant Growth Promoting Rhizobacteria Strains". EKB Journal Management System, 2, 2018, 2018, 39-49. doi: 10.21608/jenvbs.2018.3231.1024
Omara, A., Nour El-Din, M., Hauka, F., Hafez, A., El-Nahrawy, S., Ghazi, A., Elsakhawy, T., Fusco, V. (2018). 'Suppression of Rhizoctonia solani Damping-off in Soybean (Glycine max L.) by Plant Growth Promoting Rhizobacteria Strains', EKB Journal Management System, 2(2018), pp. 39-49. doi: 10.21608/jenvbs.2018.3231.1024
Omara, A., Nour El-Din, M., Hauka, F., Hafez, A., El-Nahrawy, S., Ghazi, A., Elsakhawy, T., Fusco, V. Suppression of Rhizoctonia solani Damping-off in Soybean (Glycine max L.) by Plant Growth Promoting Rhizobacteria Strains. EKB Journal Management System, 2018; 2(2018): 39-49. doi: 10.21608/jenvbs.2018.3231.1024

Suppression of Rhizoctonia solani Damping-off in Soybean (Glycine max L.) by Plant Growth Promoting Rhizobacteria Strains

Environment, Biodiversity and Soil Security
Article 4, Volume 2, Issue 2018, 2018, Page 39-49  XML PDF (711.16 K)
Document Type: Original Article
DOI: 10.21608/jenvbs.2018.3231.1024
View on SCiNiTO View on SCiNiTO
Authors
Alaa El-Dein Omara email orcid 1; Mohamed Nour El-Din1; Fathi Hauka2; Aida Hafez2; Sahar El-Nahrawy1; Azza Ghazi1; Tamer Elsakhawy1; Vincenzina Fusco3
1Agricultural Microbiology Department, Soil, Water and Environment Research Institute, Agricultural Research Center, Egypt.
2Microbiology Department, Faculty of Agriculture, Mansoura University, Egypt.
3National Research Council of Italy, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy.
Abstract
In vitro and in pots experiments were performed at Sakha Agriculture Research Station of Kafr El-Sheikh (Egypt) to evaluate the antagonistic activity of plant-growth-promoting rhizobacteria (PGPR) strains of the Bradyrhizobium japonicum, Bacillus megaterium var. phosphaticum, Methylobacterium aminovorans, M. rhodinum, and Trichoderma viride species against Rhizoctonia solani, causing soybean damping-off. All tested strains showed in vitro a notable ability to inhibit mycelial growth of R. solani on different growth media. T. viride and M. rhodinum showed the highest rate of antagonism against R. solani. In pots, all the treatments of PGPR notably decreased damping-off and increased healthy plants, as compared to the control (infested soil). As compared to the un-inoculated NPK fertilized control, higher growth parameters for shoot and root dry weight (g plant-1), number of nodules and dry weight of nodules (mg plant-1), chlorophyll content and NPK % of shoot and root, were recorded for the T11 (inoculation with B. japonicum 110 + M. aminovorans ML3 + B. megaterium var. phosphaticum B6 + T. viride) and T12 (inoculation with B. japonicum 110 + M. rhodinum ML12 + B. megaterium var. phosphaticum B6 + T. viride) treatments. Seeds yield of soybean plants attained higher values. The PGPR bacterial bioagents herein tested could participate in reducing the incidence of damping-off of soybean besides avoiding the use of excess fungicides. Such biocontrol approach should be included in the integrated pests and disease management programs.
Keywords
Soybean; PGPR; Bacteria; fungi; Damping-off
Statistics
Article View: 558
PDF Download: 502