| RGR Zn norm | relative root length | plant growth medium | ratio | 1 | Root growth rates under nutrient deficiency | 0.760253298 |
| Mature cell length | cell elongation trait | — | micrometer | 1 | Mejion | 156.007 |
| Mean(LRD P) ABA | root mass density | abscisic acid treatment | mass density unit | 1 | Abscisic acid (ABA) treatment | 0.0698 |
| aLRLpMRL0 | root morphology trait | vertical agar growth medium | ratio | 1 | Salt induced changes in Root System Architecture | 0.038890708 |
| PF-mean Total length day004 | root length | plant growth medium | micron pixel | 1 | Root growth rates under nutrient deficiency | 122.500777778 |
| Mean(LRD P) IAA | root mass density | auxin treatment | mass density unit | 1 | Auxin (IAA) treatment | 0.5054 |
| Mean(P2) C | root length | laboratory study | millimeter | 1 | Control (C) treatment | 15.5128 |
| Growth rate | relative growth rate | green house study | ratio | 1 | Pb Mine soil | 0.48 |
| RGR P | relative root length | plant growth medium | rate unit | 1 | Root growth rates under nutrient deficiency | 118.7944904 |
| Mean(LRD P) CK | root mass density | cytokinin treatment | mass density unit | 1 | Cytokinin (CK) treatment | 0.1199 |
| root length day003 | root length | plant growth medium | micron pixel | 1 | Root growth under Zn deficiency Bouain et al. 2018 | 211.5587778 |
| Z-mean Total length day005 | root length | plant growth medium | micron pixel | 1 | Root growth rates under nutrient deficiency | 172.446444444 |
| K39 | potassium concentration | growth chamber study | concentration unit | 6 | Ion Concentration | 45300.2052817 |
| Basal0 | root morphology trait | vertical agar growth medium | length unit | 1 | Salt induced changes in Root System Architecture | 0.22632775 |
| aLRL0 | root morphology trait | vertical agar growth medium | length unit | 1 | Salt induced changes in Root System Architecture | 0.165719581 |
| Mean(LR.no) CK | lateral root number | cytokinin treatment | count unit | 1 | Cytokinin (CK) treatment | 3.6 |
| DTF spain 2008 (2nd experiment) | days to flowering trait | — | day | 1 | Flowering time in simulated seasons | 51.75 |
| root length day004 | root length | plant growth medium | micron pixel | 1 | Root growth under Zn deficiency Bouain et al. 2018 | 325.686 |
| Mean(TRL) C | root length | laboratory study | millimeter | 1 | Control (C) treatment | 37.0197 |
| PC1sc0 | root morphology trait | vertical agar growth medium | dimensionless unit | 1 | Salt induced changes in Root System Architecture | 0.181272754 |