| Mean(R) IAA | root branching | auxin treatment | unit | 1 | Auxin (IAA) treatment | 18.406 |
| Mean(TLRL) ABA | lateral root length | abscisic acid treatment | millimeter | 1 | Abscisic acid (ABA) treatment | 0.1219 |
| Mean(TLRL) C | lateral root length | laboratory study | millimeter | 1 | Control (C) treatment | 2.452 |
| Mean(TLRL) CK | lateral root length | cytokinin treatment | millimeter | 1 | Cytokinin (CK) treatment | 3.832 |
| Mean(TLRL) IAA | lateral root length | auxin treatment | millimeter | 1 | Auxin (IAA) treatment | 11.586 |
| Mean(TRL) ABA | lateral root length | abscisic acid treatment | millimeter | 1 | Abscisic acid (ABA) treatment | 22.8042 |
| Mean(TRL) C | root length | laboratory study | millimeter | 1 | Control (C) treatment | 29.1225 |
| Mean(TRL) CK | lateral root length | cytokinin treatment | millimeter | 1 | Cytokinin (CK) treatment | 36.6268 |
| Mean(TRL) IAA | root length | auxin treatment | millimeter | 1 | Auxin (IAA) treatment | 32.607 |
| Meristem zone length | cell elongation trait | — | micrometer | 1 | Mejion | 145.727 |
| Mg25 | magnesium concentration | growth chamber study | concentration unit | 1 | Atwell et. al, Nature 2010 | 15545.6 |
| Mn55 | manganese concentration | growth chamber study | concentration unit | 1 | Atwell et. al, Nature 2010 | 91.7464 |
| Mo98 | molybdenum concentration | growth chamber study | concentration unit | 1 | Atwell et. al, Nature 2010 | 2.26843 |
| Na23 | sodium concentration | growth chamber study | concentration unit | 1 | Atwell et. al, Nature 2010 | 419.812 |
| Ni60 | nickel concenteration | growth chamber study | concentration unit | 1 | Atwell et. al, Nature 2010 | 3.46026 |
| Noco2 | protist disease resistance | growth chamber study | dimensionless unit | 1 | Atwell et. al, Nature 2010 | 0.0 |
| P-mean Total length day003 | root length | plant growth medium | micron pixel | 1 | Root growth rates under nutrient deficiency | 96.0891666667 |
| P-mean Total length day004 | root length | plant growth medium | micron pixel | 1 | Root growth rates under nutrient deficiency | 232.3646 |
| P-mean Total length day005 | root length | plant growth medium | micron pixel | 1 | Root growth rates under nutrient deficiency | 415.154555556 |
| P31 | phosphorus concentration | growth chamber study | concentration unit | 1 | Atwell et. al, Nature 2010 | 8888.57 |