METHOD FOR DIAGNOSING FUNGAL DISEASES OF PINE STRAWBERRY Russian patent published in 2023 - IPC A01G7/04 A01G22/05 

FIELD: agriculture.

SUBSTANCE: invention can be used for non-invasive early diagnosis of fungal diseases of pine strawberry during measures to protect it. The method includes successive measurements in the frequency range in the region of α-dispersion of plant tissue bioimpedance by applying non-polarizing electrodes to plant leaves, reactive component of plant tissue bioimpedance located in the zone of these electrodes, healthy and diagnosed strawberry leaf of the same variety with a suspected fungal disease. According to the measurement data and the mathematical dependence of the reactive component of the impedance of the equivalent electrical circuit of the plant tissue substitution on the frequency, which is previously obtained according to the rules of serial and parallel connection of active and reactive resistances of the elements of the equivalent circuit, the capacitance of the capacitor of the equivalent electrical circuit of the plant tissue is determined in series for a healthy and diagnosed leaf, modelling the capacity of plant cell membranes. Then, the ratio of the capacitances of the capacitors obtained for healthy and diagnosed leaves is determined, and by its deviation from one in the direction of increase, the degree of damage to strawberries by garden fungal disease is judged. Measurements are carried out in the frequency range from 100 to 10000 Hz.

EFFECT: method provides increased sensitivity of the informative parameter to the degree of damage to the leaf surface of strawberries by horticultural fungus disease.

2 cl, 1 dwg 1 tbl