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4.5 UNIFORM


To be eligible for Plant Breeder's Rights a new plant variety must be Uniform. It must exhibit the claimed characteristics uniformly over the population in accordance with the tables below, unless the UPOV test guideline on the species recommends otherwise:

For vegetatively propagated or fully self-pollinated varieties, the number of off-types (plants that do not conform to all the distinctive characteristics of the variety), must not exceed the numbers given in the table.

Number of plants or plant parts measured
Maximum Number of Off-Types
5
6-35
36-82
83-137
0
1
2
3
For partially self-pollinated varieties the allowable number of off-types is doubled.
In cross-pollinated varieties, a test of uniformity based on a comparison of variances is applied. Measured characteristics are considered uniform if their variance is less than 1.6 times the average of the variances of the varieties used for comparison. Visually assessed characteristics are considered uniform if the number of off-types is the same as or less than the average number found in the comparator varieties

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