Fig. 3 | Scientific Reports

Fig. 3

From: Plant growth and nitrate absorption and assimilation of two sweet potato cultivars with different N tolerances in response to nitrate supply

Fig. 3

The mean rate of NO3- flux at the meristem (300 ~ 600 μm from the tip), elongation (1 ~ 3 mm from the tip), and mature (10 ~ 15 mm from the tip) root zones. Means denoted by different letters are significantly different at P < 0.05 as determined by Duncan's multiple range test. N0, N1, N2 and N3 represent 0, 4, 8 and 16 mmol L-1, respectively. J26 and X32 represent cultivar Jishu 26 and Xushu32, respectively.

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