Yellowing trunk on maple

[Matthew Rudling]

I repotted my maple around the start of spring and reduced roots (quite a bit, say to 50%), but not the foliage. I have recently noticed a yellowing of the trunk, and the leaves have distinctly darker green veins on a lot of the leaves. Is this Chlorosis? or simply stress on the roots?

I also changed soil from mostly organic (from the nursery it came in) to about 40% perlite, and 60% potting soil.

I also moved it out into a position where it gets full morning sun. It was previously on a veranda.

 

[Bonsai Orange County]

Looks healthy to me

 

[penumbra]

It is turning to bark.

 

[Matthew Rudling]

Thanks everyone. It was just looking less green than my other JP.

@penumbra the other trunk is turning a golden-brown. Is this turning to bark then too?

 

[MulleinMan]

The yellowing seems to be in the area where the green tissue transitions into brown bark. This could just be the tissue transitioning into bark.

 

[penumbra]

Thanks everyone. It was just looking less green than my other JP.

@penumbra the other trunk is turning a golden-brown. Is this turning to bark then too?

More than likely. It is a common scenario for people with young maples.
Still good to ask, better safe than sorry.