TY JOUR TI VARIABILITY OF THE MAIN SYSTEMATIC FEATURES OF THE HYBRID SHAPE OF FIRS PICEA ABIES AND P. OBOVATA (PINACEAE) KW Picea abies; P. obovata; hybrid shape of spruce; length of cones; indicators of seed scales shape; variability; correlation JO Bulletin of Nizhnevartovsk State University AU Kazanceva, M.N. AU Popov, P.P. AU Aref'ev, S.P. PY 2025 IS 0 PB Nizhnevartovsk State University