TABLE 111-8.


Maize yield data for a four-treatment
"minus" trial.


Treatment Block I Block II Treat-
 ment x
 totals

 kg/plot

Tech. pack. (TP) 8.6 8.8 17.4 8.70
TP variety 6.4 6.7 13.1 6.55
TP nitrogen 6.9 7.1 14.0 7.00
TP plant density 6.4 7.0 13.4 6.70

 Totals 28.3 29.6 57.9 7.24

Source: Adapted from CIMMYT data.

After calculation of the sums of squares for each of the
sources of variation, the ANOVA table is as follows:

TABLE III-9. ANOVA of a maize "minus" trial.

Source of d.f. SS MS Fc
variation
Blocks 1 0.2113 0.2113 11.79 NS
Treatments 3 5.91375 1.9713 110.02 **
Error 3 0.0538 0.0179

Total 7 6.17875
C.V. = 1.85%
** Significant at 1% level.


CF = (GT)2 / n
 = (57.9)2 / 8
 = 419.05125

SSB = {[(28.3)2 + (29.6)2] / 4) CF
 = 0.21125

SST = {[(17.4)2 +...+ (13.42)] / 2} CF
 = 5.91375