Evaluation the efficiency of the bacteria Bacillus subtilis to control seeds rot and seedling death disease of tomato caused by fungus Rhizoctonia solani. | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 6, Issue 2, April 2014, Pages 242-250 | ||
| Abstract | ||
| Abstract : The aim of this study was to evaluate the efficiency of Bacillus subtilis on control to tomato seed decay and seedling death caused by Rhizoctonia solani Antagonism experiment revealed a significant effect of B. subtilis on reduction in the mean of radial growth of fungus , the radial growth was 19.65mm in present of Bactria , these were significantly different with control treatment that produced mean growth of 60.00 mm ,the inhibition rate was 67.25% . The bacteria produced good protection to seeds and seedling of tomato from the infection of this fungus .We noted that increase the concentration of the bacteria B. subtilis to control fungus R. solani was a significant, where the seeds rot at a concentration 5% ,20 and seedling infected 65 but at a concentration 20% was for seeds 2 and seedling 7 when cover seeds with bacteria, but when add bacteria to the soil were seeds rot at a concentration of 5% 72 and the infected seedling was 7. It was also showed that there are significant differences between different added as the cover seeds with bacteria to protect it from fungus R. solani was more significant than if added bacteria to the soil directly to protection from the fungus, where it was at a concentration 20% the seeds rot 2 and seedling infected 7, and when contaminate bacteria with soil to protect seeds from fungus at a concentration 20% the rotten seeds were 19 and seedlings infected 26. | ||
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