Features of the variability of the dimensional characteristics of corn grain

Abstract

The peculiarities of the variability of the dimensional characteristics of grain materials were estimated by their geometrical dimensions: thickness, width, and length of their components, average value, standard deviation, and coefficient of variation of each of them. The starting material for the research was the corn grain Solomenskaya 298 NE, harvest 2016; Corn Breath MW, harvest 2017 and corn PR 39A50, harvest 2017 Less dispersion of 2.34 mm (from 1.99 to 4.58 mm) has the thickness of a corn grain. Respiration MV. The average thickness is less in corn grain PR 39 50 and is 3.21 mm, and most of all - in corn grain Solomenskaya 298 CB. The regularity of the variability of the grain width of the studied corn is not significantly different from the variability of the thickness. In absolute values, the smallest difference in average values of width and thickness of 0.1 mm is the corn grain of Solomenskaya 298 CB, and the largest - 2.07 mm corn grain PR 39A50. The size of the dispersion of the length of the studied corn grain does not differ significantly and varies from 3.49 mm to 7.89 mm. The averaged values of the thickness, width, and length of the studied corn grain differ in the size corresponding to their tooth-like form: the smallest thickness is 3.85 mm, width is 4.80 mm, and the maximum length is 5.93 mm. Standard deviations for average grain sizes vary from 0.28 mm for length, 0.45 mm for width and up to 1.07 mm for thickness. This determines the change in the coefficient of variation of the sizes of the studied corn grain from 4.70% for the length, 9.38% for the width and up to 27.83% for the thickness. The average volume and equivalent diameter of corn kernels. The breath of GO and PR 39A50 differ, respectively, by 16.62 mm 3 and 0.19 mm, and significantly less from the corn grain of Solomenskaya 298 CB.