| From the point of view of seed physiology, this action of temperature is related to changes in the activity of gibberellins and abscisic acid in the seed. |
| The critical role of gibberellins in germination and survival of certain cacti. |
| Another family of plant hormones, the gibberellins, regulate stem elongation and have some similar effects to auxin. |
| Cytokinins, gibberellins, and auxin have been applied to promote cell division during the early stages of fruit growth in many species. |
| For many years, auxin, gibberellins, cytokinins, abscisic acid and ethylene are well accepted as the major plant hormones. |
| Hormones such as auxins and gibberellins trigger fruit cells to expand. |
