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Instrumental assessment of plant development stability
https://doi.org/10.17586/0021-3454-2025-68-10-886-893
Abstract
The possibility of using the phytoindication method to study the stability of plant development is considered. The study is carried out on plants of Alchemilla baltica, in which morphological (length of veins) and optical (transmission coefficients in the visible range) signs of leaf surface areas are measured. The indices of fluctuating asymmetry are determined based on morphological and optical features. A fluctuometer is developed that allows non-contact method to obtain information about the fluctuating asymmetry of the light transmission coefficient by leaf tissues as a bilateral feature. The fluctuometer measurement scheme is based on the alternate determination of illumination created by a light stream falling from above passing through sections of a plant leaf located symmetrically to the left and right of its central vein. A strong linear relationship is revealed between the data obtained for the two types of features (Pearson correlation coefficient 0.86), which is confirmed by the value of the coefficient of determination of the linear model is 0.74; the value of the coefficient of concordance is 0.7. Thus, the proposed method and device make it possible to implement an express method of phytoindication of the environment.
About the Authors
S. A. Rakutko
Institute for Engineering and Environmental Problems in Agricultural Production (IEEP) – branch of Federal Scientific
Agroengineering Center VIM
Russian Federation
Russian Federation
Sergei A. Rakutko — Dr. Sci., Associate Professor; Department of Agroecology in Livestock Production; Chief Researcher
St. Petersburg
E. N. Rakutko
Institute for Engineering and Environmental Problems in Agricultural Production (IEEP) – branch of Federal Scientific Agroengineering Center VIM
Russian Federation
Russian Federation
Elena N. Rakutko — Department of Agroecology in Livestock Production; Researcher
St. Petersburg
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For citations:
Rakutko S.A., Rakutko E.N. Instrumental assessment of plant development stability. Journal of Instrument Engineering. 2025;68(10):886-893. (In Russ.) https://doi.org/10.17586/0021-3454-2025-68-10-886-893
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