EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani
Hussien, Z., Mahmoud, E., Metwaly, A., Sobhy, H. (2012). EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani. EKB Journal Management System, 3(11), 1173-1187. doi: 10.21608/jppp.2012.84406
Zeinab N. Hussien; E. Y. Mahmoud; A. H. Metwaly; H. M. Sobhy. "EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani". EKB Journal Management System, 3, 11, 2012, 1173-1187. doi: 10.21608/jppp.2012.84406
Hussien, Z., Mahmoud, E., Metwaly, A., Sobhy, H. (2012). 'EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani', EKB Journal Management System, 3(11), pp. 1173-1187. doi: 10.21608/jppp.2012.84406
Hussien, Z., Mahmoud, E., Metwaly, A., Sobhy, H. EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani. EKB Journal Management System, 2012; 3(11): 1173-1187. doi: 10.21608/jppp.2012.84406

EFFECT OF SOME ANTAGONISTIC BACTERIA IN REDUCING OF PEANUT DAMPING - OFF, ROOT AND POD ROT INCIDENCE CAUSED BY Rhizoctonia solani

Journal of Plant Protection and Pathology
Article 7, Volume 3, Issue 11, November 2012, Page 1173-1187  XML PDF (359.66 K)
Document Type: Original Article
DOI: 10.21608/jppp.2012.84406
View on SCiNiTO View on SCiNiTO
Authors
Zeinab N. Hussien1; E. Y. Mahmoud1; A. H. Metwaly1; H. M. Sobhy2
1Plant Pathology Res. Ins., Agric. Res. Center, Giza., Egypt
2Institute of African Research and Studies, Cairo Univ., Giza, Egypt
Abstract
Seventeen bacterial isolates from the soil, rhizosphere, geocarposphere, peanut roots and pegs beside three supplied bioagents (Bacillus subtilis, Pseudomonas putida and Pseudomonas fluorescens) used to study their effect on four isolates of Rhizoctonia solani. In vitro only nine isolates caused moderate to strong inhibition to the four tested isolates of R. solani. P. fluorescens (Pf.5) gave the highest significant antagonistic effect against the four tested isolates of R. solani on PDA medium followed by B. subtilis (Bs.1), P. putida (PP) and Bacillus sp (S.5). In greenhouse and field experiment, the most effective isolates in reducing peanut damping-off, root and pod rot diseases were P. fluorescens (Pf.5) followed by B. subtilis (Bs1) and Bacillus sp (S.5). Regarding to peanut pod yield, the highest total peanut pod yield in the two seasons (2009 and 2010) was obtained by B. subtilis (Bs1) followed by P. fluorescens. The obtained data clearly showed the ability of some tested bioaegents to be near to the fungicides effect (Rezolex-T) in reducing damping-off and peanut root and pod rots diseases. In this respect, in greenhouse and field trials P. fluorescens (Pf 5.) was the nearest one to fungicides effect in reduction of peanut damping-off and peanut root and pod rots and exceeded the commercial biocide effect (Rhizo-N), followed by Bacillus sp (S.5) and B. subtilis (Bs1) compared to other tested bioagents.
Keywords
Rhizoctonia solani; Bacillus subtilis; Pseudomonas putida; Pseudomonas fluorescens; bioagent; Biological control; Peanut; Damping-off; Root rot; pod rot and fungicides efficiency
Statistics
Article View: 120
PDF Download: 303