Evaluation of experimental designs in durum wheat trials

Anastasios Katsileros; Christos Koukouvinos

Biometrical Letters (2015)

  • Volume: 52, Issue: 2, page 105-114
  • ISSN: 1896-3811

Abstract

top
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.

How to cite

top

Anastasios Katsileros, and Christos Koukouvinos. "Evaluation of experimental designs in durum wheat trials." Biometrical Letters 52.2 (2015): 105-114. <http://eudml.org/doc/275870>.

@article{AnastasiosKatsileros2015,
abstract = {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.},
author = {Anastasios Katsileros, Christos Koukouvinos},
journal = {Biometrical Letters},
keywords = {Alpha design; Incomplete Block design; Augmented design; Relative Efficiency},
language = {eng},
number = {2},
pages = {105-114},
title = {Evaluation of experimental designs in durum wheat trials},
url = {http://eudml.org/doc/275870},
volume = {52},
year = {2015},
}

TY - JOUR
AU - Anastasios Katsileros
AU - Christos Koukouvinos
TI - Evaluation of experimental designs in durum wheat trials
JO - Biometrical Letters
PY - 2015
VL - 52
IS - 2
SP - 105
EP - 114
AB - 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.
LA - eng
KW - Alpha design; Incomplete Block design; Augmented design; Relative Efficiency
UR - http://eudml.org/doc/275870
ER -

References

top
  1. Abd El-Shafi M.A. (2014): Efficiency of classical complete and incomplete block designs in yield trial on bread wheat genotypes. Research Journal of Agriculture and Biological Sciences 10(1): 17-23. 
  2. Akaike H. (1974): A new look at the statistical model identification. IEEE Transactions on Automatic Control 19: 716-723.[Crossref] Zbl0314.62039
  3. Bose R.C., Nair K.R. (1939): Partially balanced incomplete block designs. Sankhya 4: 337-372. 
  4. CropStat for Windows ver.7.2 (2007): International Rice Research Institute. 
  5. Federer W.T. (1956): Augmented (or Hoonuiaku) designs. The Hawaiian Planters’ Record. LV(2): 191-208. 
  6. Federer W.T., Raghavarao D. (1975): On augmented designs. Biometrics 31: 29-35.[Crossref] Zbl0308.62073
  7. Gendex (2015): Gendex DOE Toolkit. http://designcomputing.net/gendex/ Gomez, K.A., Gomez A.A. (1984): Statistical Procedures for Agricultural Research, 2nd ed. Wiley, New York. 
  8. Khan, M.I., Ali Shah S.A., Khan M., Ullah K., Ullah R., Khatak S.I. (2015): Comparative efficiency of alpha lattice design and complete randomized block design in wheat, maize and potato field trials. Journal of Resources Development and Management 11: 115-117. 
  9. Lin, C.S., Poushinsky G. (1983): A modified augmented design for an early stage of plant selection involving a large number of test lines without replication. Biometrics 39: 553-561.[Crossref] 
  10. Masood, M.A., Farooq K., Mujahid Y., Anwar M.Z. (2008): Improvement in precision of agricultural field experiments through design and analysis. Pakistan Journal of Life and Social Science 6: 89-91. 
  11. Patterson, H., Williams E.R. (1976): A new class of resolvable incomplete block designs. Biometrika 63: 83-92.[Crossref] Zbl0338.62044
  12. R Core Team (2014): R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL http://www.Rproject.org/. 
  13. Stringer J.K., Smith A.B., Cullis B.R. (2012): Spatial analysis of agricultural field experiments. In: K. Hinkelmann (Ed.), Design and analysis of experiments, Vol 3, Special designs and applications: 109-136. 
  14. Stroup W.W., Baenzinger P.S., Mulitze D.K. (1994): Removing spatial variation from wheat yield trials: a comparison of methods. Crop Science 86: 62-66.[Crossref] 
  15. Williams, E.R., John J.A. (1989): Construction of row and column designs with contiguous replicates. Applied Statistics 38: 149-154.[Crossref] 
  16. Yates, F. (1936): A new method of arranging variety trials involving a large number of varieties. Journal of Agricultural Science 26: 424-455.[Crossref] 
  17. Yau, S.K. (1997): Efficiency of alpha-lattice designs in international variety yield trials of barley and wheat. Journal of Agricultural Science, Cambridge 128: 5-9. 

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.