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Study the combination between the bacterium Bacillus thuringiensis and Bacillus subtilis in the controlling fungus Fusarium solani that caused root rot of Tomato | ||
| Kufa Journal for Agricultural Science | ||
| Article 1, Volume 7, Issue 3, 2015, Pages 59-76 | ||
| Authors | ||
| Ibrahim Khalil Hassoun; Ibtisam Mohammad Hussein; Ali Yusuf Obaid | ||
| Abstract | ||
| In This study showed that useing biocontrol agents as a combination was more effective in controlling the Fusarium solani and stimulating the growth of tomato plant. Also, the results of antagonistic ability test for Bacillus thuringiensis and Bacillus subtilis as a combination showed that the inhibited the growth of the F.solani on the PDA medium (100%). However, useing B.thuringiensis and B.subtilis inhibited the growth of the F.solani on the PDA culture medium (58.32%, 45.55%) respectively compared with the control (0%) inhibition rate. In addition, results showed that uses of the B.thuringiensis and B.subtilis as a combination by 10ml and 5ml of concentration 5 × 105 ufc .ml-1 and 6.1 × 107 ufc.ml-1 respectively have significant decreased on the infection intensity of F.solani (5.55% and 8.33%) respectively compared with the treatment of fungus pathogen alone (72.22%) Under the conditions of the green house which led to increase all growth criteria of the tomato plant as presents of fresh and dry weight, length of the vegetative, root groups and number of the flowers in Inflorescences compared with the treatment of fungus pathogen alone . We can conclude that uses of combination between synergistic biocontrol agents with each others can be considered important strategic to control of tomato rot root disease which caused by F. solani. | ||
| Keywords | ||
| combination; Bacillus thuringiensis; Bacillus subtilis; Fusarium solani; root rot of tomato | ||
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