To understand the male reproductive system, one must know the external and internal structures, and the process of spermatogenesis (sperm production) including the physiologic pathway of the sperm cell.tructures. The male external structures are the penis and the scrotum (a pouch which protects the testes). The penis consists of the glans (the head), and the shaft (the body). The glans is covered by a fold of skin called the foreskin (circumcision removes the foreskin).
Cold Stratification - How to Stratify Seeds Stratification Method. Custom Search. The Cold Moist stratification is the process by which we imitate the period of cold and moisture in nature required for perennials seeds germination (break dormancy). These perennials or native perennials seeds are much more difficult to germinate.
Or, you may have no germination at all. The term stratification, is derived from the age old practice of stimulating seed to germinate by placing alternate layers of a moist media and seed. This media may be sand, vermiculite, perlite, peat, composted bark, sawdust, or potting media.f you have purchased seeds from us, the proper type of stratification is listed on the seed package with brief details of that process. Reading through the following text should give you a better understanding of the required process. Warm-moist.