The Tropical Fruit Forum

Hey I have both but you can keep an avocado tree small enough for your space by pruning after fruit comes off.
Mulch very well to protect fine surface feeder roots, feed it regularly to keep it growing vigorously. If it grows well you should have to prune to keep it in bounds. If it slows down and deosn't need pruning, something is wrong.
https://www.youtube.com/watch?v=oxwSmoIZ2aU&t=8s

I had the same problem of using fish emulsion in my plants, found burrows from animals around roots. I believe we need to use little, too much is too overpowering. diluted half of recommend and frequent use might be better than one time full dose.

Maybe more animal control would allow more use of fish emulsion? I have raccoons, opossums, coyotes, armadillos on my place regularly judging by footprints but no attraction to my version of fish fertilizer.

I have a plant nursery and have orders for them in the 100's. The problem is getting them in the numbers needed. How many suckers does a tree produce? not many and how long would it take to get 1000 trees from root cuttings? A long time! As well as a shortage of material.   That is why tissue culture is the way to go.

Sounds like you have to scale up your stock of trees to produce what the market demands through root cuttings or pay the price the German Mafia wants for their tissue culture. The investment in your time or money is just business. The Lychee nursery next door to me had several acres of trees to take air layers, they had to grow them to meet demand.
I understand much of nursery work is just selling on but somebody has to propagate. The scale of orders you mention brings you close to the market numbers you mention for TC plantlets. Plant out 100 for yourself close together on leased land if you haven't the space?

Thinking about it you'd need a very friable soil well mulched to produce abundant surface roots. A strategy to get a harvestable root system near the surface might also be to find a way to restrict the tree's root system away from deeper layers and close to the surface, perhaps something to restrict deep roots and promote surface roots?

The guy here mentions he mixes rooting hormone with "White Rum", (alcohol) which would disinfect.
https://www.youtube.com/watch?v=k2WHyHtMDEo

This FAO propagation manual describes a method of continuous harvest over one year of semi-hard cuttings from a single root cutting in a bed, and that air layers yield best from trees which haven't borne fruit.
http://www.fao.org/3/a-i3085e.pdf

Did some checking it looks like these islanders may also supply TC plantlets, they worked with your government so that might be a channel to work through:
 http://www.spc.int/blog/spc-harvests-its-first-tissue-culture-breadfruit/

http://aciar.gov.au/files/pardi_factsheets.pdf

Good luck!

I'm not familiar with your area species but just looking at the wide view you need something very hardy suited to a desert. You might consider looking into the Groasis Waterboxx for establishment.
https://www.groasis.com/en

Look into other water saving tech like wind/shade breaks, pioneer species for on site soil building, fireproofing, it sounds like this would be unattended so consider pest control fencing. There are many people involved in tech for this subject, search youtube for "Desert Greening" to see the action.
https://www.youtube.com/results?search_query=desert+greening

Sometime after that, he hopes, a more attractive structure will be built around the tree to protect it while also allowing the public to see the tree. He pictures a wood or metal structure, with glass along with screening that blocks the citrus psyllid but allows the tree to breathe and photosynthesize. That could cost hundreds of thousands of dollars and would have to be approved by the Riverside City Council, he said.

Helluva screen house!

It looks similar to some of my trees which have gotten sunburned. if your first picture of the whole tree was taken in the late afternoon the shadows are showing that the split area is exposed to afternoon sun. All of my trees which got sunburned have it on the side exposed to afternoon sun or were horizontal branches exposed to noonday sun.

On the bright side, Jackfruit trees grow very fast. Most don't get pruned enough. Even if you cut it back below the damaged trunk, it would probably make up the growth quickly since it has flowered and must have strong roots. That would be something to consider.

What has happened is Sweet Tart has a habit of flushing at a branch tip and making many shoots tightly packed. In your first pic I count 7-8. This many shoots at one place might tend to be weak or crowded, or at least some appear weaker than others, and the one is becoming vertically dominant like the one in the video. She actually suggests tipping after the branch hardens off. That will stimulate shoots coming off at leaf nodes in fewer numbers than a tip flush and you may not be dealing with so many. She recommends picking all fruit by tipping the branch when picking.

You could select the branches you want now by snipping off the vertically dominant one, the weakest ones, any crossing ones, and any which head into the canopy. Ideally you would want 3 branches 90 degrees apart pointing outwards or even better downwards.
Or, you could tip now and select later.

This is what I'm shooting for. Takes up a lot of space but I found the right spot for it.
https://www.youtube.com/watch?v=jBgOUrJjWhI

If you cut leaves and maintain a dense clump no wonder you don't get fruit. Musa needs about 10 functional leaves to flower so harvesting for leaves is a different function than growing for fruit. You might consider two clumps one for fruit one one for for leaves or just harvest leaves from a limited number of pups. It helps to work with the natural form and functions of a plant like this.

Very hard to say what variety without fruiting. Could be plantain. Pick the strongest pup, dig it out, chop it down to 12" tall and trim roots. Replant by itself in fertile soil feed and water it well. In a year you should find out what you have. Banana/plantain are very rewarding. After fruiting, remove all pups except the best one and repeat.

Is this the farm circa 2008? Looks great if so.
https://www.youtube.com/watch?v=3Xek_sJ8Ec4

I am also curious what the undesired tree is, and what you smell from the roots. Key to identification would be pics of tree limb, trunk, leaf and flowers if possible, maybe an analogy for root "smells like a skunk...".

I think in general a better key to plant relationships are the flowers, but only generally....