RATES FOR CUTTING TYPES |
HORTUS IBA WATER
SOLUBLE SALTS
(ppm IBA) |
Annuals |
80-200 |
Herbaceous, perennials, tropical hose plants, pot
rose., etc.
(For difficult to root perennials consider using the Basal
Long Soak Method) |
150-500
Sometimes:
500-1500 |
Softwood |
500-1500 |
Hardwood |
500-2000 |
Difficult to root hardwood
(For these consider using the Basal Long Soak Method) |
5000-10,000 |
|
Some books and articles list specific rates for particular species and varieties.
The rates may have been reprinted, from one book, to the next book, to the next book, without the authors confirming the accuracy or getting exact details!
Results from one non-reproducible trial should not be taken as the best choice for your need.
Published specific rate charts may not take into account factors such as:
- Juvenility of the stock plant.
- Time that the cuttings are taken.
- Variables in the collection pool at the harvesting time.
- Storage and transportation of the cuttings.
- Preparation of the stock plant relative to light and fertilization.
- Media used.
- Conditions in the stock plant area.
- Conditions in the production facility.
- General environmental factors.
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