Thorn pop out in one of Scion of my seedless orange

[speedyturtle]

There is a seedless orange tree in my yard, planted by someone else. There are thorns show up in one of the Scions in the mid of the tree. On the beginning I thought it was a sucker from rootstock, but after I careful examed it. All the Scions below it did not have a thorn. How could it only has one Scion with thorns? You can see pic1 with thorn. Pic2 is the Scions below the thorn scion without thorn. Any idea?

Thanks..




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[isaac1]

If I were to make a guess I would say it may be a limb sport.

[david]

Can you identify the rootstock? Usually, it is a water sprout from the rootstock that pops up. It is possible that this is a limb sport. If you can not identify it as rootstock, I would let it grow and prosper.....might bear a new creature.

[Laaz]

If above the graft, Water sprouts they grow fast and can have thorns. They will turn into goo fruiting branches if you let them grow.

[toofarnorth]

Yes, I have water sprouts do that.

TFN

[speedyturtle]

Thanks everyone, I will let it grow and it bears one fruit now. There is one little interesting one on the water sprout. The thorns only pop out on the lower part of it, the topper part where bears the fruit does not has thorn.

[kumin]

It's common for vigorous fast growing stems to develop thorns especially in the lower stem. As growth progresses further there is generally a decrease in thorniness. Even super thorny Poncirus has greatly reduced thorns in the upper canopy if the growth is slow. The practical application to this may be that succulent younger growth close to the ground are most vulnerable to herbivores. Unless there are giraffes present, the treetops should be less vulnerable!

[david]

Speedy hello. I have a Brown Select satsuma seedling that is three years and 6 months old. It is the thorniest child I have ever seen. Some folks are of the opinion that satsumas do not have thorns but I beg to disagree. Seedlings are thorny. I am experiencing the last flush for this year now. The two foot of new growth is as thorny as the rest of the seedling. As a general rule the older a seedlings gets the less thorny it becomes. Seedlings do not always fall in the general rule catagory. This seedling is one that came from a hand pollinated fruit that I harvested and guarded. I opine that each seedling is different and dependant upon many heridity factors. A throwback is always possible. I find that seedlings produce more sports also. Let the thorny lower branch grow. You can deal with it later if it turns out to be something that you do not desire.