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fruits per entry per replication were measured by digital Vernier Calliper and fruit
shape index was calculated as an average of the ratio (P/E) of five fruits per entry
per replication.
2.7 Statistical analysis
2.7.1 Analysis of variance
Randomized block design experiment was analyzed by standard analyses of
variance and tests of significance at P< 0.05 for each trait.
Table 3. The scheme of analysis of variance of a randomized complete block design
with within-plot individuals information.
S.V. DF M.S. E(M.S.)
Blocks b-1 M.S B
Genotypes g-1 M.S. T
Residual (b-1)(g-1) M.S. E
Within plots (n-1)bg M.S. W
σ + nσ + ngσ
2
p
2
σ
p
+ nσ 2 e
+ nbφ
g
σ + nσ
2
p
2
σ
p
2 e
2 e
2 b
The statistical model:
Y
ijk = The observe obtained from the k individual of i genotype evaluated in j block ;
µ= General mean;
Y
ijk
= µ +
G i = Effect of i genotype considered fixed;
Bj= Effect of j block considered random;
G + B + ε ij + δ ijk
ε ij = Random effect of the variance among plots;
δ ijk = Random effect of variance within the plants among the plots.
In this model, the following components of variance can be obtained:
2
σ
p : Phenotypic variance among plants within the families;
i
j
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