EJPAU 2005. Kornacki A. A STUDY USING A MULTIVARIATE ANALYSIS ON THE MACRO- AND MICRO-DAMAGE OF GRAIN IN A THREE-DRUM THRESHING-SEPARATING SET

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2005
Volume 8
Issue 2

Topic:

Agricultural Engineering

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Kornacki A. 2005. A STUDY USING A MULTIVARIATE ANALYSIS ON THE MACRO- AND MICRO-DAMAGE OF GRAIN IN A THREE-DRUM THRESHING-SEPARATING SET, EJPAU 8(2), #03.
Available Online: http://www.ejpau.media.pl/volume8/issue2/abs-03.html

A STUDY USING A MULTIVARIATE ANALYSIS ON THE MACRO- AND MICRO-DAMAGE OF GRAIN IN A THREE-DRUM THRESHING-SEPARATING SET

Andrzej Kornacki
Chair of Applications of Mathematics, Agricultural University of Lublin, Poland

ABSTRACT

The paper examined the macro- and micro-damage of grain occurring in the course of the threshing and separating of grain in a combine harvester. Results of the experiment conducted on a stand with a three-drum threshing-separating set in the threshing of wheat, rye and barley were analyzed. Because macro- and micro-damages are strongly interrelated, studying them separately does not give the proper picture of the situation. A multivariate variance analysis (MANOVA) is an adequate instrument to describe the dependent properties. The present study adopted a two-variate model of a four way cross classification with interaction. Variance analysis as well as practical conclusions resulting from the former are presented.

Key words: process of threshing and separating the grain macro-damage, micro-damage, multivariate variance analysis, four way cross classification.

Andrzej Kornacki
Chair of Applications of Mathematics,
Agricultural University of Lublin, Poland
13. Akademicka Street, 20-950 Lublin, Poland
phone: (+ 48 81) 445-60-10
email: akornac@ursus.ar.lublin.pl

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