Fig. 7
![Fig. 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12917-020-02461-w/MediaObjects/12917_2020_2461_Fig7_HTML.png)
Experimental study design. SG: saline group; LCG: low 2,4-D concentration group; MCG: middle 2,4-D concentration group; HCG: high 2,4-D concentration group; 1D: one nebulization; 2D: two nebulizations; 3D: three nebulizations; 8D: eight days after three nebulizations