<abstract xmlns="http://www.w3.org/1999/xhtml"><p> One of the main problems in plant breeding is the selection of the best genotypes. Most often the selection is made using yield as a main trait of continuous type, and ignoring the other traits of discrete type. Here, a simple procedure is proposed for dealing with the selection problem using not only the yield, but also an auxiliary discrete trait. The method is based on transforming the continuous variable into a discrete one and testing the dependence of variables with the use of contingency tables. The procedure is illustrated by a real unreplicated experiment with winter wheat.</p></abstract>

One of the main problems in plant breeding is the selection of the best genotypes. Most often the selection is made using yield as a main trait of continuous type, and ignoring the other traits of discrete type. Here, a simple procedure is proposed for dealing with the selection problem using not only the yield, but also an auxiliary discrete trait. The method is based on transforming the continuous variable into a discrete one and testing the dependence of variables with the use of contingency tables. The procedure is illustrated by a real unreplicated experiment with winter wheat.

A remark on genotype selection in plant breeding projects

Institute of Mathematics, Poznan University of Technology, Piotrowo 3A, 60-965 Poznań, Poland

Malopolska Breeding Company Polanowice, Zbożowa 4, 30-002 Kraków, Poland

Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland

Biometrical Letters

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"A remark on genotype selection in plant breeding projects"}

One of the main problems in plant breeding is the selection of the best genotypes. Most often the selection is made using yield as a main trait of continuous...

A remark on genotype selection in plant breeding projects

Published Online: Dec 12, 2015

Page range: 131 - 137

DOI: https://doi.org/10.1515/bile-2015-0012

Keywords
continuous trait, discrete trait, contingency table, chi-squared test

© by Ewa Bakinowska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

A remark on genotype selection in plant breeding projects

Published Online: Dec 12, 2015

Page range: 131 - 137

DOI: https://doi.org/10.1515/bile-2015-0012

Keywordscontinuous trait, discrete trait, contingency table, chi-squared test

© by Ewa Bakinowska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
continuous trait, discrete trait, contingency table, chi-squared test