FIELD: agriculture.
SUBSTANCE: invention relates to the field of agriculture and forestry. In method vegetable tissues are frozen at the temperatures that smoothly rise from -70°C, and at the same time an index is measured, which characterises their condition. At each temperature in material tissues resonant cantilever-bending oscillations are excited, and mechanical losses are measured, a curve of dependence between tangent of mechanical losses angle and temperature is built. Threshold of frost resistance is the temperature that corresponds to maximum of mechanical losses in this sample.
EFFECT: method makes it possible to more reliably detect frost resistance temperature of vegetable tissue in a relatively short period of time.
5 dwg
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