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. 2017 Oct 19;9(6):plx054. doi: 10.1093/aobpla/plx054

Table 2.

RER, root traits, shoot traits and biomass fractions (mean ± SD). P-values from one-way ANOVAs, testing trait as dependent variable between cold and warm treatment for each species. Significance differences at ***P < 0.001; **P < 0.01; *P < 0.05.

Rumex Ranunculus Tussilago Poa
Cold Warm P Cold Warm P Cold Warm P Cold Warm P
Below-ground
  RER (mm per 12 h) 0.5 ± 0.4 4.4 ± 1.6 *** 0.7 ± 0.4 2.5 ± 0.9 *** 0.9 ± 0.5 3.2 ± 1.1 *** 1.2 ± 0.5 3.5 ± 1.4 ***
 Total root length (cm) 26.6 ± 15.8 858 ± 267 *** 19.6 ± 10.6 153 ± 66 *** 42.4 ± 20.9 478 ± 223 *** 46 ± 31 477 ± 198 ***
 Root dry weight (g) 0.01 ± 0.01 0.17 ± 0.06 *** 0.03 ± 0.02 0.09 ± 0.04 *** 0.02 ± 0.02 0.08 ± 0.04 *** 0.02 ± 0.01 0.05 ± 0.02 ***
 SRL (m g−1) 19.1 ± 4.3 52.8 ± 10.3 *** 8.31 ± 3.7 19.6 ± 7.9 *** 23.5 ± 8.6 58.6 ± 7.2 *** 27.8 ± 10.5 100 ± 22.6 ***
 No. of primary roots 9.4 ± 4.2 12 ± 2.8 0.06 5.6 ± 2.1 5.9 ± 1.8 0.71 8.7 ± 2.9 11.7 ± 5.8 * 5.3 ± 2.4 9.8 ± 3.1 ***
 No. of secondary roots 7 ± 8.1 1959 ± 557 *** 6.7 ± 10.5 176 ± 73 *** 19.2 ± 17.1 829 ± 436 *** 33.7 ± 30.7 1344 ± 536 ***
 BGB (g) 0.87 ± 0.31 1.06 ± 0.29 0.08 0.09 ± 0.03 0.12 ± 0.05 * 0.14 ± 0.05 0.19 ± 0.04 ** 0.08 ± 0.02 0.12 ± 0.03 ***
Above-ground
 Leaf area (cm2) 24.9 ± 7.95 74.8 ± 14.3 *** 4.72 ± 1.89 5.86 ± 1.82 0.09 7.19 ± 1.87 19.3 ± 8.51 *** 3.77 ± 1.29 8.33 ± 2.27 ***
 Leaf mass (g) 0.23 ± 0.07 0.39 ± 0.09 *** 0.05 ± 0.02 0.06 ± 0.02 0.17 0.07 ± 0.02 0.12 ± 0.05 *** 0.04 ± 0.02 0.06 ± 0.03 *
 SLA (m2 g−1) 11.4 ± 3.53 19.9 ± 2.97 *** 9.44 ± 1.78 9.41 ± 0.93 0.95 10.9 ± 1.31 15.5 ± 2.14 *** 9.09 ± 2.57 16.6 ± 9.79 ***
 AGB (g) 0.32 ± 0.11 0.52 ± 0.13 *** 0.13 ± 0.05 0.11 ± 0.03 0.23 0.09 ± 0.03 0.16 ± 0.06 *** 0.11 ± 0.04 0.15 ± 0.05 **
Biomass fractions
 LMF 0.68 ± 0.05 0.56 ± 0.05 0.12 0.33 ± 0.06 0.33 ± 0.08 0.23 0.57 ± 0.07 0.52 ± 0.05 0.23 0.38 ± 0.13 0.31 ± 0.05 0.44
 SMF 0.25 ± 0.04 0.19 ± 0.02 0.07 0.49 ± 0.11 0.24 ± 0.09 ** 0.26 ± 0.06 0.14 ± 0.03 ** 0.47 ± 0.12 0.45 ± 0.06 0.62
 RMF 0.04 ± 0.02 0.24 ± 0.07 *** 0.16 ± 0.08 0.42 ± 0.11 *** 0.17 ± 0.08 0.33 ± 0.05 *** 0.14 ± 0.05 0.24 ± 0.03 **