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MOUSTAFA MAHMOUD, S., RAGAB, M., SUMNER, D., RAGEB, M. (1995). BIOLOGICAL CONTROL OF RHIZOCTONIA SOLANI (AG-4) IN COTTON SEEDLINGS. Egyptian Journal of Agricultural Research, 73(3), 561-573. doi: 10.21608/ejar.1995.434302
SAMY M. MOUSTAFA MAHMOUD; MONA M. RAGAB; DONALD R. SUMNER; MAHER RAGEB. "BIOLOGICAL CONTROL OF RHIZOCTONIA SOLANI (AG-4) IN COTTON SEEDLINGS". Egyptian Journal of Agricultural Research, 73, 3, 1995, 561-573. doi: 10.21608/ejar.1995.434302
MOUSTAFA MAHMOUD, S., RAGAB, M., SUMNER, D., RAGEB, M. (1995). 'BIOLOGICAL CONTROL OF RHIZOCTONIA SOLANI (AG-4) IN COTTON SEEDLINGS', Egyptian Journal of Agricultural Research, 73(3), pp. 561-573. doi: 10.21608/ejar.1995.434302
MOUSTAFA MAHMOUD, S., RAGAB, M., SUMNER, D., RAGEB, M. BIOLOGICAL CONTROL OF RHIZOCTONIA SOLANI (AG-4) IN COTTON SEEDLINGS. Egyptian Journal of Agricultural Research, 1995; 73(3): 561-573. doi: 10.21608/ejar.1995.434302

BIOLOGICAL CONTROL OF RHIZOCTONIA SOLANI (AG-4) IN COTTON SEEDLINGS

Article 1, Volume 73, Issue 3, September 1995, Page 561-573  XML PDF (3.44 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1995.434302
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Authors
SAMY M. MOUSTAFA MAHMOUD1; MONA M. RAGAB2; DONALD R. SUMNER3; MAHER RAGEB2
1Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt.
2Department of Plant Pathology, Faculty of Agriculture, Cairo Univ. Giza, Egypt
3University of Georgia, Coastal Plain Experiment Staation, Tifton, USA
Abstract
A significant interaction between antagonistic soil micro-organisms and cotton cultivars influenced the development of disease symptoms by R. solani AG-4 in vivo. Two isolates of each of Trichoderma spp. and Gliocladium spp were selected from 50 different micro-organisms using a fast assay. Rhizoctonia solani (AG-4) was controlled successfully in the greenhouse when the biological agents were applied on autoclaved organic manure, but wheat bran or gel suspensions were not as efficacious. In field experiments, no significant differences were observed between the biological agents and nontreated control. Several other soil borne pathogens were isolated from diseased seedlings from the field in addition to R. solani AG-4. 
Keywords
Rhizoctonia solani; Cotton; AG4; Seedling Diseases; Egypt
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