It is an organ of perennation or vegetative propagation, and is characteristic of various water plants (e.g.Sagittaria).

这是多年生营养繁殖器官，还是多种水生植物的特征之一(例如：Sagittaria)。

Studies were made on the vegetative propagation coefficient and cormel's biological characters using eighth-excision in different development phase of Lycoris radiate.

摘要在红花石蒜不同生长发育期进行八分法切割繁殖，研究无性繁殖系数和子球生物学性状差异性。