Abstract
For the purpose of obtaining the characteristics of heat tolerance in Kentucky bluegrass (Poa pratensis L.), plant survival after germination, plant height and stem number under high temperature in summer of third year after germination were investigated using eight cultivars.
From the characteristic of cv. Adelph and Apex which seemed to be more tolerant than other cultivars, it was assumed that following three characteristics; 1) heat tolerance at germination, 2) less stem elongation under high temperature and 3) high stem density could be used for the selection of heat tolerant variety.