Table 3.

Influence of T. asperellum on the enzyme activity of maize seedlings rhizosphere soil (± SD).

Cultivars	Treatment	Urease (NH3−N mg g−1)	± Con%	Alkaline phosphatase (Phenol mg g−1)	± Con%	Sucrose (Glu mg g−1)	± Con%	Hydrogen peroxidase (0.1 N KMnO4 ml g−1)	± Con%
XY335	Con	0.35 ± 0.01c	–	11.89 ± 0.56d	–	25.20 ± 1.87c	–	2.13 ± 0.02c	–
	T1	0.40 ± 0.00b	17.65	13.94 ± 0.11c	17.24	30.16 ± 0.61b	19.68	2.50 ± 0.12b	17.37
	T2	0.42 ± 0.02b	23.53	15.91 ± 0.38b	33.81	31.60 ± 0.24b	25.40	3.00 ± 0.04b	40.85
	T3	0.47 ± 0.02a	38.24	17.06 ± 0.14a	43.48	34.81 ± 0.94a	38.13	3.31 ± 0.13a	55.40
JY417	Con	0.37 ± 0.01c	–	12.64 ± 0.18d	–	28.47 ± 1.64c	–	2.33 ± 0.09d	–
	T1	0.41 ± 0.01b	10.81	14.98 ± 0.33c	18.51	32.02 ± 0.04b	12.47	2.64 ± 0.09c	13.30
	T2	0.44 ± 0.02b	18.92	16.51 ± 0.17b	30.62	33.95 ± 1.25b	19.25	3.22 ± 0.11b	38.20
	T3	0.51 ± 0.02a	37.83	19.20 ± 0.36a	51.89	36.85 ± 1.15a	29.43	3.56 ± 0.07a	52.79
	ANOVA
	C	**		**		**		**
	T	**		**		**		**
	C × T	NS		**		NS		NS

Con, T1, T2, and T3 indicate 0, 1 × 10³, 1 × 10⁶, 1 × 10⁹ spores L⁻¹ suspension, respectively. Soil enzyme activity was measured on the 27th day after T. asperellum application. C and T indicated cultivars and treatments, respectively. Different letters within a column represented significant differences at 5% probability level, and the numerical value was the mean value of five repeats. Differences between treatments were calculated for each particular cultivar. NS, not significant. * and **, significant at the 0.05 and 0.01 probability level, respectively.