Variables | Ratios (H. tuberosus: A. adenophora) | ||||
---|---|---|---|---|---|
4:0 | 2:1 | 1:1 | 1:2 | 0:4 | |
Total shoot length (cm) | |||||
 H. tuberosus | 173.62 ± 3.59c | 181.74 ± 4.37b | 190.54 ± 4.51ab | 197.62 ± 4.26a | – |
 A. adenophora | – | 61.67 ± 1.77d | 96.11 ± 1.46c | 140.58 ± 1.80b | 171.39 ± 2.26a |
Main stem length (cm) | |||||
 H. tuberosus | 138.06 ± 2.68c | 143.17 ± 3.76bc | 149.34 ± 3.60ab | 152.96 ± 3.27a | – |
 A. adenophora | – | 41.06 ± 1.68d | 60.79 ± 1.55c | 75.22 ± 1.25b | 84.72 ± 1.93a |
Total branch length (cm) | |||||
 H. tuberosus | 35.56 ± 1.13d | 38.58 ± 1.09c | 41.19 ± 1.09b | 44.66 ± 1.04a | – |
 A. adenophora | – | 20.61 ± 0.47d | 35.42 ± 0.50c | 65.36 ± 0.65b | 86.67 ± 0.96a |
Branch number | |||||
 H. tuberosus | 3.5 ± 0.4b | 4.0 ± 0.4b | 4.9 ± 0.5a | 5.1 ± 0.5a | – |
 A. adenophora | – | 6.4 ± 0.5d | 9.4 ± 0.5c | 14.3 ± 0.6b | 18.3 ± 0.9a |
Leafstalk length (cm) | |||||
 H. tuberosus | 5.80 ± 0.02c | 5.95 ± 0.04b | 6.06 ± 0.03a | 6.10 ± 0.03a | – |
 A. adenophora | – | 3.01 ± 0.02d | 3.45 ± 0.01c | 3.83 ± 0.01b | 4.74 ± 0.02a |
Leaf area (cm2) | |||||
 H. tuberosus | 64.57 ± 0.59c | 65.21 ± 0.71bc | 66.18 ± 0.74b | 67.93 ± 0.70a | – |
 A. adenophora | – | 16.20 ± 0.15d | 20.25 ± 0.16c | 33.32 ± 0.36b | 38.34 ± 0.24a |
Root biomass (g) | |||||
 H. tuberosus | 236.97 ± 2.94c | 262.79 ± 4.60b | 264.76 ± 3.38b | 286.44 ± 3.20a | – |
 A. adenophora | – | 2.74 ± 0.09d | 4.20 ± 0.24c | 8.25 ± 0.27b | 14.32 ± 0.30a |
Aboveground biomass (g) | |||||
 H. tuberosus | 95.16 ± 1.00c | 105.86 ± 2.03b | 106.75 ± 3.43b | 125.40 ± 3.98a | – |
 A. adenophora | – | 11.24 ± 0.29d | 14.31 ± 0.29c | 16.29 ± 0.36b | 42.34 ± 1.43a |
Total biomass (g) | |||||
 H. tuberosus | 332.13 ± 3.79c | 368.64 ± 4.94b | 371.50 ± 5.94b | 411.84 ± 5.77a | – |
 A. adenophora | – | 13.98 ± 0.20d | 18.51 ± 0.24c | 24.54 ± 0.41b | 56.64 ± 1.21a |