Effect on Soil Properties of BcWRKY1 Transgenic Maize with Enhanced Salinity Tolerance

Table 4

ANOVA of four enzyme activities in rhizosphere soils.

Enzyme activities	Source of variation	P value
Alkaline phosphatase	Year	0.87
	Soil variety	0.01
	Maize variety	0.90
	Stage × maize variety	0.00
Urease	Year	0.81
	Soil variety	0.00
	Maize variety	0.52
	Stage × maize variety	0.00
Dehydrogenase	Year	0.96
	Soil variety	0.87
	Maize variety	0.77
	Stage × maize variety	0.00
Sucrase	Year	0.56
	Soil variety	0.01
	Maize variety	0.88
	Stage × maize variety	0.00

Years: 2012, 2013, and 2014.
Soil varieties: saline soil and nonsaline soil.
Maize varieties: WT (wild-type maize LH1037) and WL-73 (LH1037 plant transformed with BcWRKY1).
Stages: V3 (the three lowest leaves have a visible collar), V9 (nine leaves have collars present), R1 (silking), and R6 (physiological maturity).
Significant source of variation ().