Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 1
Written by Dan MANEA, Florin SALA
Datura stramonium L. is a species with different active principles, it has toxicity, but it has found certain uses in the pharmaceutical, medicinal, or food field. In certain pedoclimatic conditions it is present in agricultural crops, as a weed. The study analyzed the geometry of the leaves in the species Datura stramonium L. A set of leaves was taken randomly from different specimens of mature plants. The leaves were scanned and analyzed in terms of dimensional parameters (L - length, w - width, Per - perimeter), leaf surface (SLA - scanned leaf area; MLA - measured leaf area), leaf geometry (D - fractal dimension). The experimental data set presented statistical safety, according to the ANOVA test (F> Fcrit, p <0.001, for alpha = 0.001). Very strong and strong correlations were recorded between foliar parameters and SLA, MLA and D respectively (eg r = 0.930 between MLA and L; r = 0.969 between MLA and w; r = 0.946 between Per and SLA; r = 0.933 between D and SLA). Polynomial equations described the interdependence relations between foliar parameters and SLA, MLA and D, in statistical safety conditions (p<0.001).
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