Creating an aloo bukhara (plum) plant through air-layering is an interesting project. Here’s a general guide on how you might approach it:

1. Selecting Parent Plants:

   • Choose a healthy and mature plum tree with desirable fruit characteristics for air-layering. Look for a variety suitable for the Thai climate and soil conditions.

2. Preparation:

   • Select a vigorous branch on the plum tree that is suitable for air-layering. This branch will serve as the scion.
   • Prepare the selected branch by removing a ring of bark (about 1 inch wide) from the middle portion of the branch. This will encourage the formation of roots.

3. Air-Layering Technique:

   • Apply a rooting hormone to the exposed area of the branch to promote root development.
   • Wrap the exposed area with moist sphagnum moss or a similar rooting medium. Ensure that it completely covers the exposed area.
   • Cover the moss with plastic wrap or a plastic bag to create a humid environment and secure it with twine or tape.

4. Root Formation:

   • Monitor the air-layered branch regularly and keep the rooting medium moist. Roots should begin to form within a few weeks to a few months.
   • Once roots have sufficiently formed (several inches in length), carefully cut the air-layered branch below the rooted area.

5. Planting:

   • Prepare a pot with well-draining soil mix.
   • Plant the rooted section of the branch in the pot, ensuring the roots are covered with soil and the plant is stable.
   • Water the newly potted plant thoroughly and place it in a location with filtered sunlight.

6. Care and Maintenance:

   • Keep the soil consistently moist but not waterlogged. Plum trees prefer evenly moist soil.
   • Provide regular fertilization with a balanced fertilizer according to the manufacturer's instructions.
   • Protect the young plant from extreme temperatures and pests.
   • Prune as necessary to shape the plant and encourage healthy growth.

7. Patience:

   • Growing a plum tree through air-layering can take time. Be patient and allow the plant to establish itself before expecting fruit production.

By following these steps and providing attentive care, you can increase the likelihood of successfully propagating an aloo bukhara (plum) plant through air-layering. Remember to enjoy the process and the fruits that result from your efforts!