Antagonistic activity of endophytic bacteria isolated from weed plant against stem end rot pathogen of pitaya in Vietnam

Egyptian Journal of Biological Pest Control

Table 1 In vitro inhibition of growth of Alternaria alternata by single bacterial antagonists on PDA medium

Strains	Mean diameter of inhibition zone (mm)^a	Degree of antagonism^b
EC79	1.17 ± 0.12^b	+
EC80	11.88 ± 0.08^a	+++
EC83	2.11 ± 0.14^b	+
EC90	2.21 ± 0.10^b	+
EC97	1.99 ± 0.13^b	+
A. alternata + sterile distilled water		–

^aValues in the same column with the same letter(s) are not significantly different as determined by the LSD test (P = 0.01)
^bWeak “+” (1–5.99 mm), moderate “++” (6–10.99 mm), strong “+++” (11–20 mm), inhibition effects on the growth of the pathogen