Influence of Hydrogen Peroxide (H2O2) on Trichoderma harzianum Potentiality to Control Sunflower Root/collar Rot Pathogen Sclerotium rolfsii | ||||
| Egyptian Journal of Phytopathology | ||||
| Article 8, Volume 45, Issue 2, December 2017, Page 103-113 PDF (607.66 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejp.2017.88587 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Ranya EL-Ashmony* ; Marzouk Abdel-Latif; El-Sayed Abdou; Anwar Galal | ||||
| Plant Pathol. Depart., Fac. Agri., Minia Uni., Egypt | ||||
| Abstract | ||||
| In vitro studies showed significant inhibitory effects of hydrogen peroxide (H2O2) on growth of either sunflower root/collar rot pathogen, Sclerotium rolfsii or the biocontrol agent Trichoderma harzianum. H2O2 provided synergistic effects with T. harzianum, since the antagonistic potentiality of T. harzianum against S. rolfsii was increased with increasing H2O2 concentration. Sunflower root/collar rot severity was significantly reduced when seeds were singly treated by H2O2 or T. harzianum. H2O2 appeared to be the most effective to prevent S. rolfsii infectivity followed by T. harzianum. The present study provided synergistic effects for H2O2 to improve biocontrol capacity since H2O2 at 1.2g/l with T. harzianum achieved sunflower protection by 78% against S. rolfsii infection. | ||||
| Keywords | ||||
| Hyrdrogen peroxide; Sclerotium rolfsii; sunflower root/collar rot; Trichoderma harzianum | ||||
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