This is an example and actual inspiration of the next step in the evolution of single node cuttings.
This cutting was buried horizontally in the wicking sand bucket experiment I'm not sure was ever posted here, don't remember. It evolved into Winter of 2015 indoor grow room project where the buckets were abandoned and replaced with 2-gallon Root Pouch grow bags full of coarse sand, sitting in bucket bottoms and fertigated with hydro nutrients.
Anyway, see how each node sprouted growth and roots. These were separated and potted into their own grow bags and eventually made it into the ground where they grew last year and are now dormant with piles of grass around their base to winter protect the lower stalk and roots.
The same principal applies to a growing stem when enclosed in a section of split pvc pipe, filled with damp sand, much like a very long air layer. Done in the fall, giving time to root before going dormant, every node in the pipe will form roots and also in the spaces between nodes in my trials. Let it go dormant and remove pipe and all from the mother.
The pipe can be laid into a section of rain guttering having sealed ends and water, like a mini trough. Open up the split pvc pipe and the sand simply will fall away into the trough, leaving you with a long section of stem with clean pre-rooted nodes.
Where single node cuttings failed, I believe the major cause being moisture control until viable roots form, using pre-rooted nodes greatly enhances the survival. I don't claim it to be 100% but it's very close. You still have to get them transplanted and growing. Some just will not survive.
There, the secret is out. You can't get every node on any given stem, simply because they get really close towards the tip. You will end up with many workable single nodes, depending on the length of your pvc tube, and a good rooted cutting from the tip with several nodes. Some nodes will have already tried to send out a lateral stem but it will be all white and frail looking. This isn't a problem and will green up as any node shoot given ample light when it comes out of dormancy.
I have referred to this in some places as single node air layering but never showed anyone or fully explained it. Somebody else here has been dabbling with it to some degree but I'm unsure of their progress or exact methods and materials. I use the same sand from the sand plant as was used in the grow room project, 10-20 sifted so that none of it will go through a 20 mesh window screen.
There's no reason why anyone cannot now produce hundreds of plants quickly from one healthy plant. Have fun. There may be a photo tutorial coming, I haven't decided yet. This forum is still on probation and I'm semi pissed at the other one.