Source

Degrees of Freedom

Sum of Squares

Mean Squares

F Value

Isolate

1

0.082

0.082

4.9631*

Cultivar

6

0.206

0.034

2.08

Cultivar-Isolate

6

0.030

0.005

0.30

Error

70

1.153

0.016

 

Total

83

1.471

 

 
* P ≤ 0.05, Coefficient of variation=14.57%
Table 2: ANOVA of disease severity in cultivars (Navel and Valencia) interact with seven genotypes of Alternaria spp.