Ok so let me sum this up. You use a hormone, you use properly moist soil, you add a dome to help regulate moisture, you greatly reduce photosynthesis so the plant doesn't eat its stored nutes, then you spray the leaves with nutes and say to the plant, " Now that I have pretty much reduced your ability to eat down to almost zero, Im going to spray food all over you and see if you can eat it" correct?
So we are trying to gag the clones with food?
lol Im being a smart ass but what I am saying is that when you foliar feed a plant it doesn't eat it right off the leaf, it pulls it in directly to the photosynthesis dept. and turns it into sugar and processes other valuables such as trace minerals.
If you cut photosynthesis way back to get roots why would you use a foliar that requires photosynthesis to work?
It confuses the plant.
You only need 5 days for roots to start, even if they aren't visible yet, so don't worry about starvation.
Watch for it for sure.
At about day 5-8 quite often the lower leaves will go paler or more often the main growing tip looks hungry.
When you see that hunger you have roots, even if they haven't appeared yet. They are on the way. I strive to see hungry clones when I clone in soil.
Don't confuse bubble clones with soil clones. They are polar opposites as much as organics and synthetics are opposites.
With bubble clones you don't need to curb photosynthesis because the drops of water running down the trunk of the clone form drips on the ends.
Those drips have weight and before they drip off, the weight causes suction on the end of the clone trunk pulling water down.
It mimicks circulation so the plant can grow while its growing roots.
When you clone in soil you push water down from the top through the stomata that are supposed to release O2.
If you can't release O2 you really don't want to photosynthesize as that creates O2.
Photosynthesis removes the carbon molecule from CO2. Often referred to as "Carbon Capture". So bubble clones are ok to foliar(not needed ever but do it if you like), as youu have full leaves full of nutes.
Then there is hormones. Clones will root without as they can create their own, but they root faster if you supply them. And its a race.
All the hormones a clone creates to send the signals to say " Hey everyone, we need a root here, send some supplies" will fit into a drop of water that can sit on the end of a strand of hair.
It's like a phone. If you ask for a pizza you get a pizza. If you scream as loud as you possibly can you probably won't get a pizza. Too much hormone is a scream and everyone sends everything right now, and the cutting dies really fast.
Now once you have roots in a soil clone please for the love of god feed it, but thru the roots.
The plant doesn't grow roots to increase its ability to eat foliarly. It produces roots because it's hungry. Let them come out looking for food, don't order them take-out. It only slows root development.
Does that help clarify the process?