EFFECT OF HERBICIDES AND MICROELEMENTS ON RHIZOSPHERE MICROFLORA IN RELATION TO COTTON SEEDLING DISEASE CAUSED BY RHIZOCTONIA SOLANI (AG-4)
MAHMOUD, S., RAGAB, M., SUMNER, D., RAGAB, M. (1995). EFFECT OF HERBICIDES AND MICROELEMENTS ON RHIZOSPHERE MICROFLORA IN RELATION TO COTTON SEEDLING DISEASE CAUSED BY RHIZOCTONIA SOLANI (AG-4). EKB Journal Management System, 73(2), 333-345. doi: 10.21608/ejar.1995.433428
SAMY M. M. MAHMOUD; MONA M. RAGAB; DONALD R. SUMNER; MAHMOUD M. RAGAB. "EFFECT OF HERBICIDES AND MICROELEMENTS ON RHIZOSPHERE MICROFLORA IN RELATION TO COTTON SEEDLING DISEASE CAUSED BY RHIZOCTONIA SOLANI (AG-4)". EKB Journal Management System, 73, 2, 1995, 333-345. doi: 10.21608/ejar.1995.433428
MAHMOUD, S., RAGAB, M., SUMNER, D., RAGAB, M. (1995). 'EFFECT OF HERBICIDES AND MICROELEMENTS ON RHIZOSPHERE MICROFLORA IN RELATION TO COTTON SEEDLING DISEASE CAUSED BY RHIZOCTONIA SOLANI (AG-4)', EKB Journal Management System, 73(2), pp. 333-345. doi: 10.21608/ejar.1995.433428
MAHMOUD, S., RAGAB, M., SUMNER, D., RAGAB, M. EFFECT OF HERBICIDES AND MICROELEMENTS ON RHIZOSPHERE MICROFLORA IN RELATION TO COTTON SEEDLING DISEASE CAUSED BY RHIZOCTONIA SOLANI (AG-4). EKB Journal Management System, 1995; 73(2): 333-345. doi: 10.21608/ejar.1995.433428

EFFECT OF HERBICIDES AND MICROELEMENTS ON RHIZOSPHERE MICROFLORA IN RELATION TO COTTON SEEDLING DISEASE CAUSED BY RHIZOCTONIA SOLANI (AG-4)

Egyptian Journal of Agricultural Research
Article 3, Volume 73, Issue 2, June 1995, Page 333-345  XML PDF (3.96 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1995.433428
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Authors
SAMY M. M. MAHMOUD1; MONA M. RAGAB2; DONALD R. SUMNER3; MAHMOUD M. RAGAB2
1Plant Pathology Research Institute, Agricultural Research Centre, Giza, Egypt
2Department of Plant Pathology, Faculty of Agriculture, Cairo University, Giza, Egypt
3University of Georgia, Coastal Plain Experiment Station, Tifton, GA 37793, U.S.A.
Abstract
Greenhouse experiments with naturally infested field soil indicat­ed that there was no interaction between the herbicides pendimethalin, fluometuron or norflurazon and the microelements manganese sulfate, sodium molybdate or sodium chloride on cotton stand and on the qualit­ative or quantitative status of rhizosphere microflora 14 and 28 days af­ter planting (DAP). However, a significant interaction was found between herbicides and microelements on the emergence percentage 4 DAP and on the percentage of plants forming the first true leaf 11 DAP. Herbi­cides or microelements singly showed some influence on cotton stand and population of rhizosphere microflora depending on the treatment and the grCrup of microorganisms (fungi, bacteria or actinomycetes). The qualitative identification of rhizosphere was not affected within treat­ments. The herbicides pendimethalin and fluometuron decreased cotton stand 14 and 28 DAR but all the three herbicides increased percentage of moderately discolored roots and decreased the population of R.Solani (AG-4) in soil samples as compared with no herbicide treatment .
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