Sum of Squares df Mean Square F Sig. Between Groups 7.676 5 1.535 2.465 .40* Within Groups 4.858 78 6.228     Total 5.626 83       * The mean difference is significant at the 0.05 level.

Table 6: ANOVA test for the mean values of NAF of different gossypol concentrations and control cells 48 hours post treatment.