Glasnik Zaštite Bilja, Vol. 42 No. 6, 2019.
Original scientific paper
https://doi.org/10.31727/gzb.42.6.8
The digital evaluation of canopy properties of ‘Gala’ in the orchard with the LIDAR measuring system
Peter Berk
; Fakulteta za poljoprivredu i prirodne znanosti, Hoče-Maribor, Slovenija
Denis Stajnko
; Fakulteta za poljoprivredu i prirodne znanosti, Hoče-Maribor, Slovenija
Abstract
In practical experiment in the orchard, the leaf area of ‘Gala’ apple trees was evaluated on three different tree canopy segments from left and right side. The results of manual measurements were compared with laser (LIDAR) measurements by applying our own algorithm, which enabled digital reconstruction of individual tree canopy. By using regression method the relationship between dependent variable (digital number of point clouds) and independent variable (leaf area, manually measured) were evaluated for five segments of tree canopies. The analysis on five randomly selected tree orchards in the orchard showed the maximum value of the correlation coefficient r = 0.73 for the left half and r = 0.72 for the right half of the crown.
Keywords
algorithm; plant protection product; controlling; tree canopy; measurement
Hrčak ID:
231239
URI
Publication date:
24.12.2019.
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