Abdel-Sattar,, M., Aly, A., Omar, M. (2007). VARIATION IN SENSITIVITY TO FUNUGICIDES AMONG ISOLATES OF Macrophomina phaseolina FROM COTTON ROOTS. Journal of Plant Production, 32(12), 9987-9998. doi: 10.21608/jpp.2007.221246
M. A. Abdel-Sattar,; A. A. Aly; M. R. Omar. "VARIATION IN SENSITIVITY TO FUNUGICIDES AMONG ISOLATES OF Macrophomina phaseolina FROM COTTON ROOTS". Journal of Plant Production, 32, 12, 2007, 9987-9998. doi: 10.21608/jpp.2007.221246
Abdel-Sattar,, M., Aly, A., Omar, M. (2007). 'VARIATION IN SENSITIVITY TO FUNUGICIDES AMONG ISOLATES OF Macrophomina phaseolina FROM COTTON ROOTS', Journal of Plant Production, 32(12), pp. 9987-9998. doi: 10.21608/jpp.2007.221246
Abdel-Sattar,, M., Aly, A., Omar, M. VARIATION IN SENSITIVITY TO FUNUGICIDES AMONG ISOLATES OF Macrophomina phaseolina FROM COTTON ROOTS. Journal of Plant Production, 2007; 32(12): 9987-9998. doi: 10.21608/jpp.2007.221246
VARIATION IN SENSITIVITY TO FUNUGICIDES AMONG ISOLATES OF Macrophomina phaseolina FROM COTTON ROOTS
1Dept. of Agric. Bot., Fac. of Agric., Suez Canal Univ., Ismailia, Egypt.
2Plant Pathology Research Institute, Agric. Res. Center, Giza, Egypt.
Abstract
Twenty isolates of Macrophomina phaseolina from cotton roots were evaluated in vivo for sensitivity to the seed-dressing fungicides Monceren, Monceren T, Rizolex T, Vitavax 200, and Maxim AP. Monceren and Rizolex T were the best performing fungicides in suppressing M. phaseolina under greenhouse conditions. This superiority was attributed to the following reasons: first, they were effective in increasing the percentage of surviving seedlings by 203.09 and 170.10%, respectively, regardless of the tested isolate. Second, they were also effective in increasing the height of surviving seedlings by 93.21 and 62.57%, respectively. Third, Monceren and Rizolex T were effective in increasing the dry weight of surviving seedlings in 50 and 40% of the tested isolates, respectively. A high significant positive correlation was observed between pathogenicity of isolates and their sensitivity to fungicides.
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