Endophytic Bacillus subtilis Strain E1R-J Is a Promising Biocontrol Agent for Wheat Powdery Mildew

Table 2

Control effect of Bacillus subtilis strain E1R-j on wheat powdery mildew in different treatments.

Treatments	24 hours before inoculation		24 hours after inoculation
	Disease index^a	Control efficacy (%)	Disease index	Control efficacy (%)
Water (control)		—		—
Crude protein suspension		89.04 a		61.36 b
Fermentation liquid without bacterial cell		87.40 a		87.14 a
Bacterial cell suspension		41.20 b		18.62 c
Nonprotein fermentation liquid		16.17 c		7.55 d

SE, standard error of means.
^aThe severity of powdery mildew was recorded 10 days after Blumeria graminis f. sp. tritici inoculation. The disease index values were calculated using the formulas in Section 2.2.
Means followed by the same letters within each treatment are not significantly different at the level of confidence according to LSD’s multiple range test.