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ORIGINAL PAPER
Analysis of the nitrogen and magnesium doses effects of two cultivars of maize (Zea mays L.) using multivariate methods
1
Poznań University of Life Sciences, Department of Mathematical and Statistical Methods ul. Wojska Polskiego 28, 60-637 Poznań, Poland
2
Poznań University of Life Sciences, Department of Agronomy ul. Dojazd 11, 60-632 Poznań, Poland
3
Institute of Plant Protection – National Research Institute, Department of Pests Methods Forecasting and Plant Protection Economy: ul. Władysława Węgorka 50, 60-318 Poznań, Poznań
4
Wroclaw University of Environmental and Life Sciences, Department of Genetics, Plant Breeding and Seed Production pl. Grunwaldzki 24A, 53-363 Wrocław, Poland
5
Poznań University of Life Sciences, Department of Gastronomical Sciences and Functional Foods ul. Wojska Polskiego 31, 60-624, Poznań, Poland
Journal of Research and Applications in Agricultural Engineering 2019;64(3):4-9
KEYWORDS
ABSTRACT
The paper presents the results of a multivariable research regarding the evaluation of variability of selected quantitative traits in two cultivars of maize (Zea mays L.): ES Palazzo and ES Paroli after using doses of nitrogen and magnesium. The study took into account 12 traits recorded for three years (2009-2011). The statistical analysis of obtained results was conducted using multivariable methods: multivariate analysis of variance, canonical variable analysis and Mahalanobis distances. The most varied objects were A4B1C2 and A1B2C1 (in 2009), A4B1C1 and A2B2C2 (in 2010), A4B2C1 and A1B2C2 (in 2011) and A4B2C1 and A1B2C2 (for all three years). The most similar objects (with regard to the 12 traits analyzed together) were A4B2C2 and A3B2C2 (in 2009), A4B2C2 and A3B1C2 (in 2010), A2B2C2 and A2B1C2 (in 2011) and A4B2C2 and A3B2C2 (for all three years). The Mahalanobis distances between particular objects in particular years of observations were positive and statistically significantly correlated.
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| eISSN: | 2719-423X |
| ISSN: | 1642-686X |
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