Ukrainian Journal of Forest and Wood Science

Results of the evaluation of heat resistance degree of cultivars of Thuja occidentalis L.plants in conditions of Kyiv City are provided. The research was conducted according to F. P. Matskov’s methods on feofitinization degree of leaf mesophyll needles. Plants of Th. occidentalis and its cultivars were research objects, as follows: Th. oc. ‘Wagneriana’, Th. oc. ‘Wareana Lutescens’, Th. oc. ‘Ericoides’, Th. oc. ‘Ellwangeriana’, Th. ос. ‘Lutescens’, Th. ос. ‘Columna’, Th. oc. ‘Globosa’, Th. oc. ‘Spiralis’, Th. oc. ‘Smaragd’. As a result of the studies, five the most resistant to effect of high temperatures cultivars, which are promising for use in urban planting in formation of garden and park objects, have been detected.

Results of the evaluation of heat resistance degreThuja occidentalis L., cultivars, heat resistance, damages