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standard errors of five measurements. The same letters above column bars within species represent no significance between/among treatments as determined by Tukey’s method for multiplicity at α = 0.05. Arctostaphylos uva-ursi and Cercocarpus montanus
To examine injuries caused by freezing temperature, six woody plants were placed under temperatures ranging from 0 to 20C. Control plants were placed at 0 or –2C, depending on the field sampling period. Freezing tests were done three times (September, October, and November) during the fall. In 1992, six species were tested: Genista tinctoria `Lydia', Parthenocissus `Veitchii', Weigela × florida `Variegata', Spiraea japonica `Shirobana', Spiraea japonica `Coccinea', and Arctostaphylos uva-ursi. After testing, all plants were stored at –2C for the remainder of the winter. The following May, plants were repotted into containers. Effects of freezing temperatures on plant growth were recorded at the end of the following summer. Preliminary results indicate that the most sensitive species to cold temperatures were Parthenocissus `Veitchii' and Arctostaphylos uvaursi. Plants of these two species did not survive the summer. However, for the third sampling period, Parthenocissus `Veitchii' (–18C) had better cold hardiness than A. uva-ursi (–9.5C). Genista tinctoria `Lydia' appeared to have the same cold hardiness (–10C) for the three sampling periods. The last three species had shown increasing cold hardiness beginning at around –8C in September to about –18C in November.
. 2006b Winter acclimation of PsbS and related proteins in the evergreen Arctostaphylos uva-ursi as influenced by altitude and light environment Plant Cell Environ. 29 869 878
EC of 10.0 dS·m −1 . In another study by Paudel and Sun (2023) on Arctostaphylos uva-ursi (kinnikinnick), plants exposed to an EC 10.0 dS·m −1 saline solution exhibited Na + content as high as 8.3 mg·g −1 , 35 times greater than the plants