Seed productivity and dynamics of germination of Ziziphora L. species in the Pamir-Alay

Seed productivity of 4 Ziziphora species: Z. pamiroalaica, Z. interrupta, Z. brevicalyx, and Z. suffruticosa growing in the Pamir-Alay Mountains was stUdied. It was revealed that the indicator of real seed productivity did not exceed 40 %. Seed viability and character of germination were studied. It was established that seeds of all species did not have a dormancy period, had high viability, up to 95 % and high germination energy