TABLE IV-2.


Standardized field data (partial) for yield
of maize varieties in four replications in
Chimaltenango, Guatemala.


Cultivar B 1 o c k s Total X
 I II III IV
 metric ton/ha

 1 4.20 5.04 4.90 5.10 19.24 4.81
 2 5.20 5.54 5.30 5.80 21.84 5.46





 15 2.98 3.00 10.36 2.59

Totals 56.97 72.18 265.20 4.42

The sums of squares for each source of variation and the
correction factor are calculated as follows:


CF


(Grand total)2 / n
(265.20)2 / 60
1172.184


SStot = [(4.2)2 + (5.04)2 +...+ (2.98)2 +...
 + (3.00)2] CF
 = 1192.564 1172.184
 = 20.380


{[(56.97)2
1173.293 -
1.109


+....+ (72.18)2] / 15} CF
1172.184


SST = {[(19.24)2 + (21.84)2 +...+ (10.36)2] / 4} CF

 = 1180.434 1172.184
 = 8.250


SSE = (SStot)


(SSB + SST)


= 20.380 (1.109 + 8.250)
= 11.021


SSB =