TABLE 5.

Plant growth-promoting characteristics and enzymatic activities by manganese solubilizing strains isolated from maize rhizosphere.

Strains	IAA Prod. (μg mL–1)	NH3 Prod.	Siderophores	Catalase activity	Protease activity	Amylase activity	Lipase activity	Oxidase activity
Control	4.92 ± 0.22f	0.46 ± 0.04g	ND	ND	ND	ND	ND	ND
ASH4	7.86 ± 0.59e	1.57 ± 0.15a	+ve	+ve	+ve	+ve	+ve	+ve
ASH6	16.99 ± 1.74c	0.56 ± 0.05fg	−ve	−ve	+ve	+ve	+ve	−ve
ASH7	ND	0.88 ± 0.05de	−ve	+ve	+ve	−ve	+ve	+ve
ASH8	ND	0.42 ± 0.03g	+ve	+ve	+ve	−ve	+ve	+ve
ASH9	ND	1.16 ± 0.04bc	−ve	−ve	+ve	+ve	−ve	−ve
ASH10	23.13 ± 1.73a	1.36 ± 0.06ab	+ve	+ve	+ve	+ve	−ve	+ve
ASH11	19.99 ± 0.28b	1.11 ± 0.08bcd	+ve	+ve	+ve	+ve	+ve	+ve
ASH12	ND	0.58 ± 0.08fg	+ve	−ve	+ve	+ve	+ve	+ve
ASH17	24.76 ± 0.42a	1.11 ± 0.03cd	+ve	+ve	+ve	+ve	+ve	+ve
ASH19	18.73 ± 0.12bc	0.78 ± 0.02ef	−ve	+ve	+ve	−ve	−ve	−ve
ASH20	12.56 ± 0.61d	0.41 ± 0.01g	+ve	+ve	+ve	+ve	−ve	+ve
ASH22	10.13 ± 0.59de	1.08 ± 0.09cd	−ve	+ve	+ve	+ve	−ve	+ve
ASH24	ND	1.22 ± 0.08bc	+ve	+ve	−ve	+ve	+ve	+ve
LSD	1.31	0.12	ND	ND	ND	ND	ND	ND

Manganese solubilizing bacterial (MSB) strains were screened for various biochemical characterization responsible for plant growth promotion and enzymatic activities; data presented are the mean of three replications ± standard error; the means in a vertical line for each attributes sharing common letters were considered statistical similar to each other and least significant difference (LSD) test was performed at 5% (p ≤ 0.05) probability level. The symbol, +ve represents the presence of the traits while the symbol, −ve shows the absence of the trait; ND, not detected.