Trait Abbreviation Mean (± SE) Max Min CV%
Maximum root depth(cm) MRD 14.27±6.06 29.69 3.71 42.46%
Root diameter (mm) RD 0.36±0.12 0.74 0.17 32.45%
Specific root length (cm·g-1) SRL 1209.19±600.42 3262.09 294.54 49.65%
Specific root area (cm2·g-1) SRA 123.17±46.92 286.09 24.44 38.10%
Root tissue density (g·cm-3) RTD 1.41±0.73 3.59 0.55 51.63%
Topological index TI 0.95±0.06 1.00 0.77 5.92%