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.plKatedra 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 matricesReferences
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.
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Authors
Anna Rajfuraanna_rajfura@sggw.edu.pl
Katedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie Poland
Authors
Wiesław MądryKatedra Doświadczalnictwa i Bioinformatyki, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie Poland
Authors
Tadeusz DrzazgaPrzedsiębiorstwo Hodowli Roślin Rolniczych „Nasiona Kobierzyc” w Kobierzycach Poland
Authors
Marzena IwańskaKatedra 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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