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PARAMETERS OF MULTIFRACTAL SPECTRUM FOR DESCRIBING GROWTH STATE OF SOYBEAN LEAVES

    https://doi.org/10.1142/S0218348X18500901Cited by:1 (Source: Crossref)

    We studied soybean leaves of the main soybean cultivars and their mutants from Shanxi Province, China, using multifractal spectrum analysis of transmission scanned gray scale images of excised leaves. We demonstrate that the parameters of multifractal spectra correlate with the biological status of the plant. The width Δα of the multifractal spectrum, a parameter of the transmission scanned gray scale image, is a good indicator of the metabolic state and growth rate of a soybean leaf. In general, the larger the value of Δα, the more exuberant the metabolism and the faster the growth rate of the leaf. αmin is a parameter related with the distribution of chlorophyll in leaf, it reflects the concentration degree of chlorophyll; the smaller the value of αmin, the higher the concentration degree of chlorophyll in the leaf. αmax is a parameter related with the distribution of water in the leaf, it reflects the concentration degree of water; the larger the value of αmax, the higher the concentration degree of water in the leaf. In order to reduce the impact of errors in the calculation of Δα, αmin and αmax, we introduced three new parameters — the characteristic width ΔαC, the characteristic αS and the characteristic αL. We compare the values of Δα, αmin and αmax among the different leaves qualitatively by replacing Δα, αmin and αmax with ΔαC, αS and αL, respectively. In research of soybean leaf growth, stress resistance of soybean cultivars and the breeding of excellent varietals, ΔαC is shown here to be a new and useful indicator for analysis.