I want to introduce a kind of wild fruit to the market. It seems that I can't apply for a patent, but only for a trademark. I feel very confused. What should we do next?

If you are optimistic about its market ~ you can discuss it with your family ~ get their consent first, you are asking and encouraging your family to go ~ to build a small-scale experimental field first. If you can slowly expand farmland cultivation, then apply for a trademark. You shouldn't be able to apply for a fruit patent, but you can only apply for a range where others can't sell the same fruit as you ~, because the fruit is not your own, and others can grow it. I can only make a trademark myself and be the biggest wholesaler.