A number of varieties of wheat were used in a factorial experiment to investigate the effect of salinity on the different varieties of wheat. Analysis of dry weights produced the following results:

Analysis of Variance for Weight Source DF MS F P Variety 41 .25 13.75 0 . 44 0.730 Salinity 1 600 .25 600 .25 19.29 0 . 002 Variety* Salinity 3 39.25 13.08 0 . 42 0.743 Error 249.00 31. 13 Total 15 929. 75 Variety N Weight 4 48 . 750 4 51 . 500 53.000 4 52 . 250 Salinity N Weight High 8 57 .500 Low 8 45. 250 Variety Salinity N Weight High 2 57.000 Low 2 40.500 High 57.000 Low 46.000 High 57.000 Low 49.000 High 59. 000 Low 45.500