Rooting powder???

[GoodFriendMike]

I have been trying to marcot some of my seed grown citrus. With no luck. I just ordered Hormex #16 the strong stuff. Anyone ever use it? I also am working on getting some more Capri that are not so easy to get. If everything works out. Hoping this may help my rooting? I will test it on other cutting's first. Thought's?

 

[ktrain]

I quit using any of that stuff, not to say it doesn't work.
I have never tried citrus, though I read it can be done....but takes longer?

 

[GoodFriendMike]

I quit using any of that stuff, not to say it doesn't work.
I have never tried citrus, though I read it can be done....but takes longer?

I quit using it as well. But it was all the store bought stuff. Wonder if this stuff is better?

 

[ktrain]

I quit using it as well. But it was all the store bought stuff. Wonder if this stuff is better?

Hm...maybe if citrus is harder to root it would be better to use it.

 

[GoodFriendMike]

Well the Hormex came in today. Active ingredient indole 3 butyric acid. .10% for the Bontone 2 and 1.60% for the Hormex #16. Truly a big difference. Will be trying it on a couple of fig cutting.

 

[GoodFriendMike]

So. I set eight cutting's to root.
3 different Capri. 3 using the Bontone 2. 3 using the Hormex #16 and 2 without hormone.
Lets see what happens

 

[TorontoJoe]

I had to double-take when I saw "marcot". I'm just not used to hearing it called that.

I have not used that stuff but it does seem strong. My personal experience with hormone in general has been

Cuttings - I no longer use it because I found it to be like speed. The cuttings develop roots very quickly and then burn out and die having apparently, too quickly depleting the energy in the cutting. It developed roots more quickly, but overall success rate was noticeably lower. For me it has been better to wait and have the cutting survive.

Layers - Absolutely! With the support of the host tree, the layer doesn't burn out and fade away. The success rate is no greater, but no less either... So why not get the rooting going faster

My only $0.02 on powder vs gel.... I seem to waste a lot more with the use of powder from losing what doesn't stick. I like the gel... I keep packs of cheap, kid's water colour brushes around for things like this.

As to whether it is actually contaminated by sticking your applicator tool directly into the container... popular Youtubers seem to say it a lot... but I've never seen anything to support that this is true... maybe....

 

[DCallahan]

Is there any explanation from the rooting powder manufacturers on why not to use a stronger mix then is called for the species?

 

[TorontoJoe]

Is there any explanation from the rooting powder manufacturers on why not to use a stronger mix then is called for the species?

I'd like the answer to this as well.

 

[SpiritFarmVa]

The different concentrations are meant for different plants. The easier to root or softer material gets a lighter concentration the harder to root and harder material gets stronger concentration. There are many research papers written on what concentration of rooting hormone is ideal for a specific plant. It’s interesting how a plant will respond to a certain concentration of IBA really well but 25% lower or higher concentration will have a very significant impact of rooting success rates.
So they will test 0%, 1500ppm, 3000ppm, 4500ppm and your rooting rates will be different at each concentration. Those numbers arent exact it’s just for instance.
If you search in Google scholar you can usually find very specific studies on it. Some are even cultivar specific.