Determining the resistances of some plant species to frost stress through ion leakage method

Abstract

In this study, frost stress often used in landscaping work with ions leakage method aims to determine the resistance of the ten plant species. For this purpose, were exposed to temperatures of - 15 °C, -25 °C, -35 °C and -45 °C. Relative injury indices is a method commonly used to determine the degree of frost damage ion leakage calculated with use. The changeable in relative injury index due to temperature was found to be statistically significant at the reliability level of 99.9% in all species except for Cedrus libani. Ligustrum vulgare, Euonymus japonica, Mahonia aquifolium, Prunus laurocerasus, and Cedrus libani have been found to be least resistant strains against frost stress. Pinus sylvestris and Cupressus sempervirens, on the other hand, were seen to be the species affected by least frost stress. Thuja orientalis, Pinus nigra, and Picea pungens were found to be partially resistant to frost stress.