Analysis of information sources in references of the Wikipedia article "겨울잠" in Korean language version.
With the exception of some tropical species, seed germination is typically postponed for some period that is determined by characteristics of seeds and the environmental conditions they are exposed to [...]. [...] seeds may remain ungerminated and persist in the soil for many years. In this case, latency is induced by external environmental conditions, so these seeds are effectively in hibernation. [...] Because of seed hibernation and dormancy, many plant populations consist of adult individuals as well as Seed Banks that may be composed of seeds produced over a number of growing seasons.
