Hi! I have been rooting things for many years. I have also asked this question. I found my answer. There are many things that I have heard of, but only a few that I use.
1. Powdered kelp and water
Gross right? Stick your cutting in DRY soil with good drainage. Make a mixture of kelp and warm water and water your cutting with that.
2. Honey
Boil 2 cups of water and add 1 tbsp honey to it. Let cool and put in airtight container. Store out of light, neither sun nor artificial. Dip cutting in mixture then pot.
3. Willow Tea
Take new growth off of a willow tree. Cut them into 1" segments and stick them in boiling water. Let cool overnight. Stick cutting in willow tea and wait till roots grow. Transplant rooted cutting to a small pot.
4. Aspirin and water
Stick one aspirin in 1 gallon of water and wait till dissolved. Either stick your cutting in it and let it sit or water cutting in dry soil with it.
5. Your Saliva
That's right. Just lick the end of your cutting and plant it, some old time gardeners say that.
6. Nothing
Just stick your cutting in soil and give it the proper care!
So that is what some people say, I'll tell you what I think. Powdered kelp and water has never worked for me. I don't know why, but it has worked for other people. Honey, works. Some people say to apply plain honey to the foot of your cutting, never worked for me. Willow tea, I've never tried. Some say it works others don't. You be the judge! Aspirin and water was recommended to me by a friend. She says it works great. Your saliva may work, not sure, I was to scared to lick the end of a rose bush cutting. :) Nothing, works great if you give it the proper care. Try all of these and figure out for yourself what works best!
auxin
You can use coriander stems or cilantro leaves as a substitute for coriander root in a recipe.
A suitable substitute for celery root in a recipe is parsnip, which has a similar flavor profile and texture.
Auxin hormone
The rooting hormone most likely influenced the process of cell division and differentiation in the plant stem cutting, promoting the formation of new root cells. This hormone helps initiate root development by stimulating the growth of root primordia and enhancing the overall rooting process.
Carrots or parsnips can be used as substitutes for parsley root in a recipe.
Auxin hormone
Rooting gel is a hormone used for helping cuttings establish a root system.
Applying root hormone with fungicide can help plants grow better by promoting root development and protecting against fungal diseases. Root hormone stimulates root growth, leading to stronger and healthier roots, while fungicide prevents fungal infections that can harm the plant. This combination can improve overall plant health and increase the plant's ability to absorb nutrients and water, ultimately leading to better growth and productivity.
orris root is used as a natural preservative and a fixative when making pomander balls... However, sandalwood oil is sometimes used as a substitute (1 drop) because some people have an allergy to the orris root powder that is derived from iris roots. I found this answer at www.pioneerthinking.com/pomanders.html Hope it helps, Beulah Brown, Virginia
Rooting gel is a hormone used for helping cuttings establish a root system.
according to this website: http://www.viable-herbal.com/singles/Herbs/s634.htm chicory root is a caffeine-free substitute for coffee.