Propagation: some questions..., 1 by Stake

Stake wrote:
G'Day Folks
Assuming the rooting hormone is IBA in the ready mixed powder form it has a limited life of about 12 months or a bit more if kept tightly sealed. The crystaline form (pure) that has to be dissolved with alcohol then diluted with water will keep for about the same time if kept in the fridge, the unmixed crystals much longer.
You also need to check that you have the right strength for the cuttings you are striking because if you use the hardwood mix on soft cuttings you will kill the cutting. I would assume that you have the same classification as us and that is Powder no.1 softwood, no 2 medium and no 3 hardwood cuttings.
I found that even easy to strike cuttings did so faster and with more roots if the rooting hormone was used.
Photo is of grafted vine cuttings being prepared for planting out after 10 days in a hot room at 27c after using liquid IBA.
Regards