Greetings, welcome to the Forums.
Some of the roots pictured look healthy. The root system seems a bit reduced, but that may be from slow growth or from being dug up.
Hopefully you immediately re-potted your Apricot (Prunus armeniaca) after the photo.
Going forward, plant the seedling in a fast-draining mix. Water regularly, but allow the soil to drain and partly dry before the next irrigation. Of course, the plant should be in full sun. While it is in a container, fertilize on a schedule, with a complete liquid fertilizer.