SEED QUALITY OF SOME LILIUM L. SPECIES IN THE SOUTH OF WESTERN SIBERIA
Seed quality (weight of 1000 pieces as well as germination ability) of six Lilium L. species of various ecological and geographical origin was studied in the south of Western Siberia in order to preserve them in culture. The knowledge of seed properties helps to efficiently use seed material in practical work. Viable seeds were produced by L. martagon and by several introduced species such as: L. callosum, L. cernuum, L. monodelphum and L. regale, in some years - L. pensilvanicum. Small seeds were in L. callosum; L. monodelphum and L. regale were characterized by the largest seeds, the average weight of seeds was found in L. martagon and L. cernuum (5.99-7.42 g). In conditions of introduction, seed germination of four lily species was high in comparison with the local L. martagon and varied from 86.0 (L. cernuum) to 94.0 % (L. sallosum). L. pensilvanicum had a low germination ability comparing to other species. The longest period from sowing until seed germination was specific for L. monodelphum.