METHOD FOR ASSESSMENT OF FROST RESISTANCE IN VEGETABLE TISSUE OF FRUIT CULTURES BY RESONANT METHOD

摘要

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