Identification of Box Scale and Root Placement for Paddy–Wheat Root System Architecture Using the Box Counting Method

Autor: Shulin Liu, Xinxin Chen, Jianping Hu, Qishuo Ding, Ruiyin He
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Agriculture, Vol 13, Iss 12, p 2184 (2023)
Druh dokumentu: article
ISSN: 2077-0472
DOI: 10.3390/agriculture13122184
Popis: Root fractal analysis is instrumental in comprehending the intricate structures of plant root systems, offering insights into root morphology, branching patterns, and resource acquisition efficiency. We conducted a field experiment on paddy–wheat root systems under varying nitrogen fertilizer strategies to address the need for quantitative standardization in root fractal analysis. The study evaluated the impact of nitrogen fertilizer heterogeneity on root length and number. We established functional relationships and correlations among root fractal characteristics and root length across different box dimension scales and various root placement angles at 2.5, 5, 10, 20, 40, and 80 box dimension scales. Results indicated that nitrogen fertilizer had a limited impact on paddy–wheat axile roots, with a coefficient of variation below 0.35 among samples. Box dimension scale influenced 3D fractal dimension (FD) and fractal abundance (FA), with strong correlations (>78%) among 3D fractal features and low sample errors (0.76 for FA and >0.5 for FD) and low sample errors (
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