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Table 3 The C/N ratios of leaves in Brassica napus plantlets cultured under nitrate treatment

From: Implication of quantifying nitrate utilization and CO2 assimilation of Brassica napus plantlets in vitro under variable ammonium/nitrate ratios

Parameters NO3-N(mM) (+ 20 mM NH4-N)
5 10 20 40
CT/NT ratio 7.22 ± 0.64 7.04 ± 0.34 7.05 ± 0.16 5.53 ± 0.27
CC/NN ratio 8.96 ± 1.27 13.77 ± 1.61 10.38 ± 1.76 7.13 ± 1.02
CC/NA ratio 2.62 ± 0.25 3.47 ± 0.24 3.75 ± 0.30 3.83 ± 0.39
CS/NN ratio 22.49 ± 3.11 21.02 ± 2.34 16.13 ± 2.66 8.64 ± 1.19
CS/NA ratio 6.58 ± 0.71 5.30 ± 0.39 5.83 ± 0.83 4.64 ± 1.13
  1. Each nitrate treatment contained 20 mM ammonium. Each value represents the mean ± SE (n = 3). The standard error of the CC/NN ratio, CC/NA ratio, CS/NN ratio, and CS/NA ratio was calculated by the error propagation formula