I don't know of any source of grafted jackfruit where I live (Senegal). Seed, however, is easy enough to acquire internationally.
Obviously, jackfruit doesn't breed true-to-type. However, could anyone give me an idea of what percentage of seedling jackfruits will give satisfactory fruit? What are the drawbacks of most seedling trees? (small fruit? few fruits? low sweetness? etc.) If the chances of getting something decent are 1 in 10000, I'll make the effort to import grafted stock. If the chances are 1-in-10 or 1-in-3, I may as well keep throwing seed in the ground and select my own variety.
Thoughts?