Tropical Fruit Forum - International Tropical Fruit Growers

Citrus => Citrus General Discussion => Topic started by: Bomand on June 18, 2019, 12:28:57 PM

Title: Root hormone
Post by: Bomand on June 18, 2019, 12:28:57 PM
I use Clonex. Is there something better? Is there a rooting hormone just for citrus. Many years ago when I could not afford to buy rooting hormone I made my own by boiling willow bark and limbs. Worked I guess. I started lots of cuttings with it. As long as you have the right acid l guess it matters not.
Title: Re: Root hormone
Post by: luak on June 18, 2019, 12:47:48 PM
Donít know much about it. Have tried several, no luck! I like grafting better.
Title: Re: Root hormone
Post by: Bomand on June 18, 2019, 01:14:16 PM
I use it. It appears to work for me. I have started cuttings without it. Just cut an angle on the end. Stick them down and keep them in the shade and keep them wet. I used to start a ton of them without it and get a small percentage of success. Now I get a huge improvement on the success rate
 I am going to say its the hormone. I love to graft too but cuttings are a way to get identical clones of the parent tree and you can get some good, cheap rootstock with cuttings.
Title: Re: Root hormone
Post by: brian on June 18, 2019, 01:17:41 PM
I was curious now and found (

"Auxins are one of the main plant hormones that aid in the creation of initial root growth. More specifically, indole acetic acid (IAA) is the natural auxin found in plants that is responsible for natural root stimulation.

IAA is involved in just about every aspect of plant growth and development, including the formation of embryo development, induction of cell division, stem elongation, vascular tissue differentiation, fruit/flower development, tropic behaviors (leaves and stems moving toward the light source) and the induction of rooting.

Most rooting products do not contain IAA but rather a synthetic form of indolebutyric acid (IBA) and/or napthaleneacetic acid (NAA). These rooting hormone products come in different forms, each with their own advantages and disadvantages."

Seems like most rooting products are synthetic Indole-3-butyric acid (
Title: Re: Root hormone
Post by: lebmung on June 18, 2019, 04:57:23 PM
I use it with succes in all rootings.
The only problem is it need to be fresh. It breaks down fast with temperature and light.
The best is IAA but very unstable so you hardly can find it. Series times stronger than IBA.  NAA helps a lot too.
Title: Re: Root hormone
Post by: citrange on June 19, 2019, 10:07:25 AM
You should have a look at the research paper below.
It seems things are more complicated than just to say one hormone is better than the other. Lots of other factors affect the choice. (
Title: Re: Root hormone
Post by: Bomand on June 19, 2019, 10:21:42 AM
I like this study. Conclusion is much like grFting....timing is everything.