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MIKHAEEL, F., SHERIEF, F., RIZK, R., ABDALLA, F. (2002). EFFICACY OF GLOMUS AGGREGATUM AND BACILLUS SUBTILIS AS BIOCONTROL AGENTS FOR REDUCING FUSARIUM ROOT-ROT IN SOYBEAN PLANTS. Egyptian Journal of Agricultural Research, 80(3), 987-1000. doi: 10.21608/ejar.2002.311884
FATHY T. MIKHAEEL; FATMA A. SHERIEF; RIZK y. RIZK; FAKRY M. ABDALLA. "EFFICACY OF GLOMUS AGGREGATUM AND BACILLUS SUBTILIS AS BIOCONTROL AGENTS FOR REDUCING FUSARIUM ROOT-ROT IN SOYBEAN PLANTS". Egyptian Journal of Agricultural Research, 80, 3, 2002, 987-1000. doi: 10.21608/ejar.2002.311884
MIKHAEEL, F., SHERIEF, F., RIZK, R., ABDALLA, F. (2002). 'EFFICACY OF GLOMUS AGGREGATUM AND BACILLUS SUBTILIS AS BIOCONTROL AGENTS FOR REDUCING FUSARIUM ROOT-ROT IN SOYBEAN PLANTS', Egyptian Journal of Agricultural Research, 80(3), pp. 987-1000. doi: 10.21608/ejar.2002.311884
MIKHAEEL, F., SHERIEF, F., RIZK, R., ABDALLA, F. EFFICACY OF GLOMUS AGGREGATUM AND BACILLUS SUBTILIS AS BIOCONTROL AGENTS FOR REDUCING FUSARIUM ROOT-ROT IN SOYBEAN PLANTS. Egyptian Journal of Agricultural Research, 2002; 80(3): 987-1000. doi: 10.21608/ejar.2002.311884

EFFICACY OF GLOMUS AGGREGATUM AND BACILLUS SUBTILIS AS BIOCONTROL AGENTS FOR REDUCING FUSARIUM ROOT-ROT IN SOYBEAN PLANTS

Article 2, Volume 80, Issue 3, September 2002, Page 987-1000  XML PDF (3.95 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2002.311884
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Authors
FATHY T. MIKHAEEL1; FATMA A. SHERIEF2; RIZK y. RIZK2; FAKRY M. ABDALLA2
1Agricultural Microbiology Research Department, Cairo, Egypt
2Soil Microbiology Lab., Sakha Agricultural Research Station, Soils, Water and Environ. Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Abstract
A mycorrhizal fungus Glomus aggregatum (VAM), and a bacterial isolate Bacillus subtilis (Bs), were evaluated individually or in combination with Bradythizobium japonicum (Rh) as biocontrol agents for reducing root-rot disease caused by fusarium oxysporum (P.O.) in soybean plants, under greenhouse conditions. In non-inoculated (control) plants, infesta­tion of soils with F.O. drastically reduced plant growth parameters com­pared to non-infested ones. However, the detrimental effects caused by F.O. infestation were less detected in VAM and/or Bs inoculated treat­ments, being the least pronounced in the VAM+Bs treatment. In plants inoculated with B. japonicum, fusarium infestation result­ed in variable decreases in number and dry weight of nodules, plant growth and seed yield. However, rhizobial inoculated-plants could with­stand the stress of fusarium infestation when biologically controlled with G. aggtegatum and/or B. subtilis. Results pointed out that the observed prophylactic effects of mycorrhizal inoculation was not only related with plant nutrition, but also related with reduction of disease severity.
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