highly significantp < 0,01
marginally significantp < 0.07
Differences of means were classed as not significant (n.s.), marginally significant ( p < 0.07), significant (*, p < 0.05) and highly significant (**, p < 0,01).
Differences of means were classed as not significant (n.s.), marginally significant ( p < 0.07), significant (*, p < 0.05) and highly significant (**, p < 0,01).