Choosing representative subset of locations in series of winter wheat trials
Wiesław Pilarczyk
wieslaw.pilarczyk@up.poznan.plKatedra Metod Matematycznych i Statystycznych, Akademia Rolnicza im. A. Cieszkowskiego, Poznań (Poland)
Anna Fraś
Centralny Ośrodek Badania Odmian Roślin Uprawnych, Słupia Wielka (Poland)
Abstract
Inference on value for cultivation and use (VCU) of new varieties is usually based on results of series of trials performed in different environments (trial stations, locations). The size of series (number of locations) depends on economic importance of species and varies (in Poland) from very few trials for less important species to several dozens for the most important ones. Transformations in Poland during last twenty years caused also changes in official variety testing. Among the results of changes is reduction of the number of trial stations and reduction of size of series of trials performed for VCU purposes for practically all species. How this reduction can influence the results of series of trials and – indirectly – the conclusions on varieties is shown using results of extensive series of trials on winter wheat performed in the year 1991.
Keywords:
genotype-environment interaction, representativeness of locations, series of trialsReferences
Caliński T., Czajka S., Kaczmarek Z., Krajewski P., Pilarczyk W. 2005. Analyzing multi-environment variety trials using randomization-derived mixed models, Biometrics 61: 448 — 455.
Google Scholar
Denis J. B., Piepho H. P., van Eeuwijk F. A. 1997 Modeling expectation of variance for genotype by environment data, Heredity 79: 162 — 171.
Google Scholar
Gauch H. G. 1988. Model selection and validation for yield trials with interaction, Biometrics 44:705 — 715.
Google Scholar
Gauch H. G., Furnas R. E. 1991. Statistical analysis of yield trials with MATMODEL, Agron. J. 83: 916 — 920.
Google Scholar
Lin C. S. 1982. Grouping genotypes by a cluster method directly related to genotype-environment mean square. Theor. Appl. Genet. 62: 277 — 280.
Google Scholar
Lin C. S., Binns M. R. 1985. Procedural approach for assessing cultivar-location data: Pairwise genotype-environment interaction of test cultivars with checks, Can. J. Plant. Sci. 65: 1065 — 1071.
Google Scholar
Lin C. S., Butler G. 1988. A data-based approach for selecting locations for regional trials, Can. J. Plant Sci. 68: 651 — 659.
Google Scholar
Piepho H. P. 1977. Analyzing genotype-environment data by mixed models with multiplicative effects, Biometrics 53: 761 — 766.
Google Scholar
Pilarczyk W. 1977. Optymalizacja wielkości serii doświadczeń w czasie i przestrzeni, Colloquium Biometryczne, Tom. 7: 272 — 282.
Google Scholar
Pilarczyk W. 1983. Wykorzystanie analizy skupień do podziału stacji doświadczalnych na grupy o małej interakcji odmianowo-środowiskowej, Colloquium Biometryczne, Tom. 13: 133 — 147.
Google Scholar
Pilarczyk W. 1988. Planowanie i analiza doświadczeń — teoria i praktyka. Wiadomości Odmianoznawcze 6/28: 3 — 58.
Google Scholar
Pilarczyk W. 1990. Skuteczność różnych metod analizy jednoczynnikowych doświadczeń blokowych, Wiadomości Odmianoznawcze 2/39: 1 — 101.
Google Scholar
Authors
Wiesław Pilarczykwieslaw.pilarczyk@up.poznan.pl
Katedra Metod Matematycznych i Statystycznych, Akademia Rolnicza im. A. Cieszkowskiego, Poznań Poland
Authors
Anna FraśCentralny Ośrodek Badania Odmian Roślin Uprawnych, Słupia Wielka Poland
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