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

Table 2

Height and fresh weight of maize WL-73 and WT under 300 mM NaCl stress.

Parameter	7 days of non-NaCl stress		7 days of NaCl stress
	WL-73	WT	WL-73	WT
Height (cm)	25.7 ± 0.42	25.6 ± 0.34	24.4 ± 0.70	19.1 ± 0.81
Fresh weight per plant (g)	5.95 ± 0.21	5.89 ± 0.14	5.41 ± 0.63	3.38 ± 0.22
SOD (U·g^−1 FW)	260.60 ± 1.35	259.80 ± 1.48	283.59 ± 3.38	332.02 ± 1.73
POD (U·g^−1 FW)	813.03 ± 0.19	812.48 ± 0.47	927.62 ± 1.40	1,316.92 ± 1.83
Pro (mg·g^−1)	138.00 ± 0.48	137.58 ± 0.57	168.17 ± 2.64	225.80 ± 3.14
MDA (nmol·g^−1)	78.41 ± 0.72	78.33 ± 0.75	102.44 ± 2.11	170.89 ± 4.06
REC (%)	0.17 ± 0.01	0.17 ± 0.01	0.23 ± 0.01	0.35 ± 0.02
Chlorophyll content (mg·g^−1)	2.71 ± 0.03	2.72 ± 0.01	2.67 ± 0.05	2.05 ± 0.03

Wild-type or transgenic maize plants were treated with 0.5x Hoagland’s nutrient solution and 0 mM NaCl (control) or 300 mM NaCl for 7 days. Then, the height, fresh weight, and SOD, POD, Pro, MDA, REC, and chlorophyll contents were measured. WT, wild-type maize LH1037; WL-73, LH1037 plant transformed with BcWRKY1.
Different letters following the numbers in the same column indicate a significant () difference between treatments according to the LSD test.