Kaybeleva Elmira I. RussiaSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia kaybeleva-elmira@mail.ru Author's articles The Poa bulbosa L. Reproductive Strategy in the Steppe Phytocenoses of the Lower Volga Region Evolutionary role of apomixis: S. S. Khokhlov’s hypothesis in the light of modern data