Bacillus velezensis BM21, a potential and efficient biocontrol agent in control of corn stalk rot caused by Fusarium graminearum

Egyptian Journal of Biological Pest Control

Table 3 Detection of production position of antifungi substances from BM21 against Fusarium graminearum

Position	Application dose	Colony diameter^b	Inhibition rate (%)
Mixed substances^a	1%	4.3 ± 0.3b	45.6
	5%	4.0 ± 0.2b	49.4
	10%	2.0 ± 0.1c	74.7
Extracellular	1%	4.6 ± 0.5b	41.8
	5%	3.3 ± 0.2b	58.2
	10%	1.9 ± 0.3c	75.9
	CK	7.9 ± 0.2a

^aMixed intracellular and extracellular substances; ^bMean ± standard error of F. graminearum colony diameter in antagonistic test with BM21. Values within the column followed by different letters are significantly different according to Duncan’s multiple range tests (P < 0.05)