| It is usually better, however, to place them for several weeks in a callusing bed before planting. |
| If cuttings are buried so deep that they cannot sprout, callusing may be hastened by placing them in a mild temperature. |
| Callusing ability of hypocotyl explants derived from 6-day-old in vitro seedlings of cv. |
| Do not cover with pruning tar as this will interfere with the callusing process. |
| They are, therefore, stratified in a callusing bed where moisture and temperature can be controlled. |
| Callusing may occur, as a healing phenomenon, temporarily limiting fungal spread. |
