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- Author or Editor: D. R. Evert x
- Journal of the American Society for Horticultural Science x
Abstract
Normalized electrical impedance measured cold injury to stem sections of ‘Delicious’ apple (Malus domestica Borkh). The measurements did not alter later visual ratings of browning on the same sample. Normalized electrical impedance estimates of injury and visual ratings of browning agreed in 87% of the samples in the first year and 95% of the samples in the second year. In 29 of the 30 adjacent sampling temperatures that produced intermediate injury, as determined by visual browning, normalized impedance values had a higher probability of distinguishing between temperatures than did visual browning. Linear interpolation of the temperatures, which were needed to produce equal injury for the two methods, yielded a mean difference of 0.8°C.