Ginger does not use seeds to reproduce, but with Jiang for asexual reproduction, so there is no main root, is a shallow root crops. After the planting of ginger, several adventitious roots occurred in the stems of the bud, and several small lateral roots occurred on it. After entering the vigorous growth period, several fleshy roots can be taken from the ginger mother and the ginger, and the fleshy roots also have certain absorptive capacity. The stems of ginger are divided into two kinds of stems and underground stems.
⒈ the ground stems. Ginger stems erect, height 60 cm-100 cm. There were few branches in the ground stem, the stem was stout, it was called Liangmiao type, some varieties had many branches, and the stalk was more fine than dense seedling type.
⒉ the underground stems. Ginger's underground stems are called rhizomes, both product organs and reproductive organs. The root formation process is: when the seed ginger germination, gradually grow into the main stem. With the growth of the main stem, the base of the main stem gradually expanded to form a small rhizome, usually called "Ginger Mother". Kang on both sides of the axillary bud can continue to sprout 2-4 ginger seedlings, that is, a branch, the base gradually expanded, forming a ginger block, called the son of Ginger. The buds on the ginger continued to germinate, and the Xinmiao was the second branch, and the base swelled to form two times of ginger, called Sun Jiang. So continue to occur the third, four, fifth times, until the harvest, and the formation of a Kang by the ginger and several times a complete rhizome. In general, the more branches of ginger on the ground, the more underground part of the Jiang, the larger, the higher the yield. The leaves of Ginger are lanceolate, alternate, and the leathery leaf sheath under the leaves is covered with a stem, and a hole is attached to the leaf sheath, and the newborn leaves are withdrawn from the hole.