EFFICIENCY OF Azotobacter chroococcum AND ARBUSCULAR MYCORRYIZAL FUNGI Glomus | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 19, Issue 2, April 2014, Pages 0-0 | ||
| Authors | ||
| H.M. Aboud; A.Q. Waheed; M.H. Al-Jubori | ||
| Abstract | ||
| This study was conducted to study the efficiency of interaction between two isolates of Azotobacer chroococcum and one isolate of Glomus mosseae and Gigaspora sp. As biocontrol agents against tomato root rot disease caused by Fusarium solani under greenhouse and field conditions .The results of greenhouse experiment showed that most of treatments significantly decreased the percentage of infection plants (pre and post emergency plants) as compared to pathogens treatment F. solani. Azo. 5+ Gigaspora + pathogen treatment was the best in reducing the disease incidence 29.99%, while in pathogen treatment 86.66%. Results of greenhouse showed that the two biocontrol agents separately or in combination significantly increased most of the tested parameters growth as compared to control treatment, Azo. 5+ Glomus + pathogen treatment was the best in increment the parameters growth (shoot length, root length, soft and dry weight of shoot and root, no. of leafs and flowers / plant ) which recorded 48.30, 32.66 cm, 105.33, 30.13g/plant, 32.46, 9.23 g/plant, 39.17 leaf/plant, 37.46 flower/plant respectively as compared to control treatment 22.33, 15.9cm, 60.80, 18.33 g/plant, 18.80, 4.76 g/plant, 23.0 leaf/plant, 11.6 flower / plant respectively. Results of field experiment showed that Azo. 5+ Glomus +pathogen and Azo. 4 + Glomus + pathogen treatments were the best in increment most the tested parameters growth as compared to control and pathogen treatments. | ||
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