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

Figure 6

Assays of seven physicochemical properties of rhizosphere soil. BcWRKY1 transgenic maize (WL-73) and nontransgenic maize (WT; LH1037) plants were grown in saline or control nonsaline soil from 2012 to 2014. Seven physicochemical parameters were measured, and a statistical analysis was performed using the LSD test with and . (a) pH; (b) SAR value; (c) electrical conductivity; (d) available N; (e) available K; (f) available P; (g) organic matter. WT, wild-type maize LH1037; WL-73, LH1037 plant transformed with BcWRKY1; V3, the three lowest leaves have a visible collar; V9, nine leaves have collars present; R1, silking; R6, physiological maturity. indicates a significant difference at according to the LSD test (). indicates a significant difference at according to the LSD test (). The standard error is based on the average of three biological replicates. Note: no overall significant differences were observed between WL-73 and WT plants for most of the physicochemical properties () at four maize growth periods (R1, R9, V1, and V6) in saline and control soil environments from 2012 to 2014.

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