Response: RBI Pr(>F)
culture  < 2.2e-16 ***
région 2.711e-08 ***
stade < 2.2e-16 ***
Culture*région 4.380e-06 ***
Culture*stade 0.0003211 ***
Région*stade 1.375e-05 ***
Culture*région*stade 0.0001717 ***
Table 3: Test the effect of three factors (culture, stage and region) on the Index Browning at the Root (RBI).