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. 2017 Jan 18;12(1):e0170379. doi: 10.1371/journal.pone.0170379

Fig 1. Measurement of the soil salt content in fields of Bt cotton and non-Bt cotton in 2013 and 2014.

Fig 1

SS, seedling stage; BS, budding stage; FBS, flowering and bolling stage. Lowercase letters above the bars indicate significant differences among the salinity treatments (p < 0.05).