The clustering of locations based on multi-environment trials with different cultivars across years using the SEQRET package. Part II. An example for grain yield from winter wheat pre-registration trials

Anna Rajfura

anna_rajfura@sggw.edu.pl
Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie (Poland)

Wiesław Mądry


Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie (Poland)

Tadeusz Drzazga


Przedsiębiorstwo Hodowli Roślin Rolniczych „Nasiona Kobierzyc” w Kobierzycach (Poland)

Marzena Iwańska


Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie (Poland)

Abstract

This work presents the example of using pattern analysis methods, which are appropriate to cluster locations for unbalanced historical data sets from multienvironmental series of experiments with winter wheat carried out for many years. The SEQRET package was used for clustering locations in the way by which they discriminate among genotypes, and for calculating determination coefficients for years. The paper presents the use of procedures described in a theoretical Part I in practice.


Keywords:

SEQRET package, retrospective sequential pattern analysis, unbalanced historical data sets, averaged reduced proximity matrices

DeLacy I. H., Basford K. E., Cooper M., Fox P. N. 1996. Retrospective analysis of historical data sets from multi-environment trials-Theoretical development. In: Cooper M., Hammer G. L. (eds), Plant Adaptation and Crop Improvement. CAB International: 243 — 267.
Google Scholar

DeLacy I. H., Basford K. E., Cooper M., Fox P.N. 1998. The SEQRET Package: Computer Programs for Retrospective Pattern Analysis, Version 1.1. The University of Queensland, Brisbane 4072, Australia.
Google Scholar


Published
2008-12-31

Cited by

Rajfura, A. (2008) “The clustering of locations based on multi-environment trials with different cultivars across years using the SEQRET package. Part II. An example for grain yield from winter wheat pre-registration trials”, Bulletin of Plant Breeding and Acclimatization Institute, (250), pp. 145–153. doi: 10.37317/biul-2008-0012.

Authors

Anna Rajfura 
anna_rajfura@sggw.edu.pl
Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie Poland

Authors

Wiesław Mądry 

Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie Poland

Authors

Tadeusz Drzazga 

Przedsiębiorstwo Hodowli Roślin Rolniczych „Nasiona Kobierzyc” w Kobierzycach Poland

Authors

Marzena Iwańska 

Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie Poland

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Copyright (c) 2008 Anna Rajfura, Wiesław Mądry, Tadeusz Drzazga, Marzena Iwańska

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