Journal of the American Society for Horticultural Science · 1973 · 18 citations · 0 references
AgriculturePlant BiologyPlant SciencesPhysiological EcologyPlant EcophysiologyPostharvest PhysiologyCold HardinessCold Stress PhysiologyFruit PhysiologyTemperature PhysiologyTemperature ResponsesAcclimation MechanismsLow-temperature PhysiologyPlant Cold Stress PhysiologySeasonal Temperature Dynamics
Abstract Cold resistance of current season shoots and trunk bark of ‘Red Delicious’ apple trees were compared with seasonal temperature through 4 winters. Cold resistance was measured by electrolytic conductance and recorded as T 10 and T 90 . There was correlation between cold resistance and the temperature during 7 days preceding cold acclimation measurement. Sustained temperature below 0°C increased cold resistance more than did very low temperature interrupted by short periods above freezing.