sterility assurance level
21arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
22Eusebia (empress) — Eusebia (†360, full name Flavia Aurelia Eusebia, sometimes known as Aurelia Eusebia) was the second wife of Emperor Constantius II. Main sources for the knowledge about her life are Julian s panegyric Speech of Thanks to the Empress Eusebia in… …
23Self-incompatibility in plants — Self incompatibility (SI) is a general name for several genetic mechanisms in angiosperms, which prevent self fertilization and thus encourage outcrossing. In plants with SI, when a pollen grain produced in a plant reaches a stigma of the same… …
24Overpopulation Theories — Theories of Population † Catholic Encyclopedia ► Theories of Population Down to the end of the eighteenth century, very little attention was given to the relation between increase of population and increase of subsistence. Plato (De… …
