Results of Duo-Trio Difference Test II
Results of the second duo-trio difference test for beer produced from three varieties of hops with and without stunt virus are shown in the table below. To achieve significance, 20 panelists out of a total 30 had to correctly identify the sample that was different from a labeled reference out of a set of three (p ≤ 0.05). Within these treatments, panelists were able to significantly differentiate the negative vs. positive stunt viroid only in the Nugget hops variety. This result suggested that hops variety influences the impact of the stunt viroid on the final sensory properties of the beer.
Hops variety |
Stunt Viroid Level |
Correctly identified |
Total n |
Significance (p≤0.05) |
Columbus |
Negative vs. Positive |
11 |
30 |
0.951 |
Galena |
Negative vs. Positive |
15 |
30 |
0.572 |
Nugget |
Negative vs. Positive |
25 |
30 |
0.000*** |
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