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Biometrical Letters

The Journal of Polish Biometric Society

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Evaluation of experimental designs in durum wheat trials

Anastasios Katsileros
  • Faculty of Crop Science, Laboratory of Plant Breeding and Biometry, Agricultural University of Athens, 11855, Athens, Greece
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Christos Koukouvinos
Published Online: 2015-12-12 | DOI: https://doi.org/10.1515/bile-2015-0010


Variability among experimental plots may be a relevant problem in field genotype experiments, especially when a large number of entries are involved. Four field trials on 24 durum wheat genotypes were conducted in 2013/14 in order to evaluate the efficiency of Incomplete Block, Alpha and Augmented designs in comparison with the traditional Randomized Complete Block Design (RCBD). The results showed that the RCBD can be replaced by an Alpha design, which provides better control of variability among the experimental units when the number of treatments to be tested in an experiment exceeds twenty. The ranking of the genotypes across the four designs was not constant.

Keywords: Alpha design; Incomplete Block design; Augmented design; Relative Efficiency


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About the article

Published Online: 2015-12-12

Published in Print: 2015-12-01

Citation Information: Biometrical Letters, Volume 52, Issue 2, Pages 105–114, ISSN (Online) 1896-3811, DOI: https://doi.org/10.1515/bile-2015-0010.

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© by Anastasios Katsileros. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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