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Table 2 Absorption kinetics parameters of K+ in tobacco roots under different treatments

From: Grafting alleviates potassium stress and improves growth in tobacco

Graft combination

+K

-K

Imax (μmol FW g−1 h−1)

Km (μmol L− 1)

Cmin (μmol L− 1)

α

Imax (μmol FW g− 1 h− 1)

Km (μmol L− 1)

Cmin (μmol L− 1)

α

W

91.56a

133.17b

57.37b

0.69a

105.21a

113.81c

41.51c

0.92a

Y/W

88.22a

140.71b

65.64b

0.63a

100.57a

121.84c

49.12c

0.83a

W/Y

58.39b

160.07a

87.63a

0.36b

70.4b

142.35b

74.27b

0.49b

Y

55.74b

165.91a

96.84a

0.34b

58.3c

158.99a

90.58a

0.37b

  1. Different letters within the same column indicate a significant difference (P < 0.05)