ANALYSIS METHOD OF CLEAN TREE LEAVES ONTOGENESIS

摘要

FIELD: ecology.;SUBSTANCE: produce the substrate laying with a white surface underneath to the measured leaf, and the overlay chart for the map measurements is applied at the top. The longitudinal axis of the plant leaf coincides with one of the chart grid lines, then the leaf is photographed through the overlay chart with grid . Further, the measurements of the leaf length and width according to the chart grid in the enlarged image of the plant leaf is performed. Moreover, when selecting the leaves, the choice is performed at the local area tree crown surface with the same sunlight, and not less than 10 accounted leaves is selected in this local area. Implementation of the digital photos without the leaves cutting is carried out in different periods of time not less than 10 times during the entire growing season. The accounted leaf perimeter calculation is performed according to the formula P = 0.28284I_P, where P - perimeter of the accounted leaf, cm, I_P - the number of incomplete leaf grids along the periphery, pcs., the leaf area calculation is performed according to the formula S = 0.04I_S 0,02I_P, where S - the area of the accounted leaf, cm², I_S - the number of complete leaf grids at the image, pcs., I_P - the number of incomplete leaf grids along the periphery, pcs. Futher according to the results of measurements on the basis of statistical simulation according to the known formulas in the software environment of CurveExpert type detect the biotechnical patterns: a = f (t), b = f (t), P = f (t), S = f (t), where a - the length of the accounted leaf, b - the width of the accounted leaf, P - the perimeter of the accounted leaf, S - the area of the accounted leaf, t - time from the beginning of each accounted leaf ontogenesis cycle for the tree bud bursting.;EFFECT: use of the method allows to calculate the speed of the tree leaves growth throughout the whole ontogenesis cycle from the beginning of bud bursting upto the accounted leaves abscission until the end of the growing season.;7 cl, 10 dwg, 3 tbl