TABLE 2.
P value of the two‐way analysis of variance (ANOVA) models performed to test the hypothesis under which the cell tissue types are influenced by the distance from the apex and the root type
| Variable: anatomical traits | Distance from apex | Root type | Distance * root type |
|---|---|---|---|
| p value | p value | p value | |
| Epidermis width (μm) | .01537 | .00542 | .04410 |
| Exodermis width (μm) | .00281 | 7.31e‐10 | .42145 |
| Cortex width (μm) | 4.11e‐07 | <2e‐16 | .00109 |
| Cortex cell width (μm) | 1.50e‐07 | 2.94e‐14 | .033 |
| Endodermis width (μm) | 2.38e‐13 | 1.37e‐05 | .912 |
| Pericycle width (μm) | .000979 | < 2e‐16 | .000519 |
| Stele diameter (μm) | 6.16e‐16 | < 2e‐16 | 1.07e‐08 |
| Stele cell width (μm) | <2e‐16 | <2e‐16 | .276 |
| Stele cell number (#) | 5.56e‐09 | < 2e‐16 | 6.85e‐05 |
| Metaxylem number (#) | <2e‐16 | <2e‐16 | .475 |
| Metaxylem vessel diameter (μm) | .030735 | <2e‐16 | .000502 |
| Protoxylem number (#) | 6.21e‐15 | <2e‐16 | .0493 |