Comparison of uniformity decisions in DUS testing for full and reduced numbers of measurements

It is investigated how a reduction in the number of measurements influences uniformity decisions in distinctness, uniformity and stability (DUS) testing. Using real data from DUS trials performed in Poland for several species, it is shown that when final decisions are taken after three years of test...

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Published in:Biometrical letters 2015-06, Vol.52 (1), p.47-53
Main Authors: Pilarczyk, Wiesław, Kowalczyk, Bogna, Bakinowska, Ewa
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Kowalczyk, Bogna
Bakinowska, Ewa
description It is investigated how a reduction in the number of measurements influences uniformity decisions in distinctness, uniformity and stability (DUS) testing. Using real data from DUS trials performed in Poland for several species, it is shown that when final decisions are taken after three years of testing, a reduction in the number of measurements by 50% of the numbers indicated in the Guidelines has very limited impact on decisions (rejection or approval of candidate variety). Decisions taken after one year (or two years) are more dependent on the numbers of measurements.
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title Comparison of uniformity decisions in DUS testing for full and reduced numbers of measurements
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