The synergistic effect of two formulated biofungicides in the biocontrol of root and bottom rot of lettuce
Abstract
The aim of this study was to evaluate the synergistic effect of two formulated biofungicides (Rhizoleen-T and Rhizoleen-B) in the suppression of root and bottom rot of lettuce caused by Rhizoctonia solani, as well as the consequent effect on the phytosanitarian status of the plants.The results proved that application of the biofungicides either singly or in combination increased the germination and survival of the lettuce up to 61.67% and 100%, respectively. The phytosanitarian status of the plants, which was indicated by morphological and physiological parameters, was improved as the result of the application of the biofungicides. The noteworthy valuable result was the increase in fresh weight by 52.5% of the control when the two biofungicides were applied as a mixture. Interestingly, the mixture of the two biofungicides brought about a significant increase in most parameters compared to either of them in single preparation. Proline and phenols significantly increased as a result of the application of the biofungicides compared to the control. This means that the treated plants were more resistant against the pathogens. The study concludes that application of the biofungicides protects the lettuce plants against root and botto...Continue Reading
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