  The results, obtained with evolutionary synthesis code package, developed by
the author, for spectral properties of stellar populations with different
initial metallicities Z, are presented and discussed . Also, their
contributions to the production of most common nucleosynthesis elements He, C
and O were followed. These computations have been performed on the basis of two
available but different homogeneous multicomposition stellar evolutionary
tracks grids by Geneva and Padova groups and the Kurucz model atmospheres.
  Next to the discussion of overall effects and evelutionary differences,
caused by chemical composition, we also present and comment the normalized per
stellar mass unit standard tables of the detailed radiation energy output from
stellar populations, integrated over the whole lifetime of their stars, in
function of metallicity, likewise the tables on He, C and O production. They
might serve as useful tools for studies of cosmological problems as well as for
studies of buildup of heavy elements in the Universe and galactic enrichment.
from stellar populations in dependence
