Biometrical Letters Vol. 53(1), 2016, pp. 47-57
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THE COMPARISON OF THREE MODELS APPLIED TO THE ANALYSIS OF A THREE-FACTOR TRIAL ON HYBRID MAIZE (ZEA MAYS L.) CULTIVARS Piotr Szulc1, Iwona Mejza2, Katarzyna Ambroży-Deręgowska2, Kamila Nowosad3, Jan Bocianowski2 1Department of Agronomy, Poznań University of Life Sciences, Dojazd 11, 60-632 Poznań, Poland, e-mail: pszulc@up.poznan.pl 2Department of Mathematical and Statistical Methods, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland,e-mails: ambrozy@up.poznan.pl; imejza@up.poznan.pl, jboc@up.poznan.pl 3Department of Genetics, Plant Breeding and Seed Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki 24A, 53-363 Wrocław, Poland, e-mail: kamila.nowosad@up.wroclaw.pl |
The aim of this paper is to present the comparison of three models applied to the analysis of a one-year study of protein yield for two types of hybrid maize cultivars under different forms of nitrogen fertilizer and doses of magnesium. The field trial was conducted in 2010 at the Agricultural Experimental Station in Swadzim (Poland). The results obtained were analyzed in terms of three randomization-derived models of observations. Consideration was given to three mixed systems, which are combinations of split-plot design, split-block design and randomized complete block design. The relative efficiency of the designs with respect to estimation of some comparisons among treatment combination effects was examined. Particular attention was paid to the interaction between cultivars and nitrogen fertilization.
magnesium, protein yield, randomized complete block design, relative efficiency, types of nitrogen fertilizer, split-block design, split-plot design, Zea mays L.
