| Answer | Crossword Clue |
|---|---|
| diatropism | the growth of plant roots at right angles to an applied force |
| diatropisms | DIATROPISM, the growth of plant roots at right angles to an applied force |
| diatropic | relating to diatropism, the growth of plant roots at right angles to an applied force |
| geotropism | The growth of the parts of plants with respect to the force of gravity. The upward growth of plant shoots is an instance of negative geotropism; the downward growth of roots is positive geotropism |
