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Chemical and Biological Technologies in Agriculture
Fig. 4 | Chemical and Biological Technologies in Agriculture

Fig. 4

From: Humic acids and Herbaspirillum seropedicae change the extracellular H+ flux and gene expression in maize roots seedlings

Fig. 4

a H+ flux and b root surface pH at the elongation zones of Zea mays L. primary roots treated or untreated with 50 mg C L−1 humic acid (HA), H. seropedicae (Bac) or 50 mg C L−1 humic acid and H. seropedicae (HA + Bac) for 7 days in hydroponic culture. Data were analyzed by one-way ANOVA combined with Tukey`s test at P < 0.05 (n = 10)

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