Jackfruit is the heaviest and largest fruit in the world, generally weighing 5-20kg, and the heaviest is more than 50kg. In addition, the fruit is thick and soft, sweet and delicious, and has a strong fragrance, so it is known as the "tropical fruit queen". Morphological characteristics: evergreen trees, up to 20 meters high. There is milky juice, and there are slab roots at the base of the trunk. Simple leaves, alternate, leathery, obovate, entire. Flowers are unisexual, monoecious, lacking petals, male inflorescence terminal or axillary, cylindrical, pendulous, female inflorescence born on trunk or main branch.