Abstract
According to the importance of the application of the factorial experiments in agriculture and other disciplines, this study aims at analyze the unbalanced factorial experiment (a x b).This study presents the explanation of the manner for the calculation of sum of squares, and the analysis of variances for such experiments.A field experiment was conducted at the experimental field at the College of Agriculture/University of Baghdad, is designed to study the effect of Boron (B) and Sulfur (S) on number of ovules of Sunflower. This experiment was unbalanced. In conclusion, the use of harmonic mean was the best solution to analyze such experiment.
