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Table 1 The growth parameters of the Ov and Bn plantlets cultured under different inorganic nitrogen concentrations

From: Differential contributions of NO3/NH4+ to nitrogen use in response to a variable inorganic nitrogen supply in plantlets of two Brassicaceae species in vitro

Parameters Plant species Inorganic nitrogen concentration (mM)
20 40 60 80
Increased biomass (g) Ov 3.45 ± 0.07a 3.45 ± 0.59a 2.85 ± 0.42a 3.11 ± 0.54a
Bn 2.41 ± 0.41ab 2.36 ± 0.04b 2.81 ± 0.16ab 3.06 ± 0.28a
Number of shoots Ov 8.0 ± 1.0ab 8.7 ± 0.6a 6.0 ± 1.0bc 5.0 ± 1.0c
Bn 5.7 ± 0.6ab 5.0 ± 1.0b 5.7 ± 1.2ab 7.3 ± 0.6a
  1. Ov Orychophragmus violaceus, Bn Brassica napus. The ratio of nitrate to ammonium within each inorganic nitrogen concentration was 2:1. Each value represents the mean ± SD (n = 3). Values signed with the same letter in each line are not significantly different by Tukey’s test (p > 0.05)