Variation source   Degrees of freedom Fcalculate
    Eh (%) Ec (%)
Replication 3 1.14ns 0.23ns
Pistachio nut size 2 602.89** 60.13**

**Significance at 1% level
nsNon – significant
Table 2: Analysis of the variance showing the effect of size of pistachio nut on hulling performance.