The leaves are drying up because the roots can't keep up with how fast the leave are losing water through transpiration. On top of this plants store excess energy in their roots. As small as the root system is now it is unlikely the tree will have enough reserves to replace the leaves if they all dry up and die. To give the tree a better chance you need to do something to slow the speed that water is being lost through the leaves. It may or may not save the tree but it will give it a better chance.

Don't put it in strong direct lighting and don't let a fan blow directly on it or it will lose water even faster.

Here is a link that might be useful: Ready To Use Wilt Proof Plant Protection, 1 Qt

Thisisme, you hit the nail on the head with the diagnosis. I had the plant in a sunny window and the temps were in the 80s here - and then the leaves started drying out and looking wilted. I misted the tree with kelp water and covered it with a plastic bag and even a leaf that was partially dry leaf on one side perked up and greened up in the non-dry part within 2 hours! The roots really cannot keep up with the waterloss through the leaves. I will get the Wilt proof product from my local nursery and try my experiments armed with my new knowledge. Always appreciate your wisdom.

Ahley - I think you'd be much better served to tent the plant to keep humidity high, and keep it in bright but not direct light, than to resort to an antidesiccant. You can read what Linda Chalker-Scott, PhD says about antidessicants at their link below.

Al

Here is a link that might be useful: More on Wilt Pruf from Dr Scott

If you tent it be careful the humidity does not go to high. Humidity and light can become mold before you know it. If you do tent it cut some slits in the tent so allow some air exchange. If you see droplets of water forming on the tent or the leaves open the holes a little more because the humidity is too high.

Thank you Al and thisisme. I will be careful that the tenting does not bring any side effects on my plant.