Method for assessing resistance of wheat to speckled snow mold ( Typhula ishikariensis ) under controlled conditions

A method was developed for assessing the resistance of wheat to speckled snow mold (Typhula ishikariensis) under controlled conditions in all steps. We modified the method of Nakajima and Abe and estimated the optimum conditions consisting of 2 weeks each for prehardening and hardening, 6 weeks for incubation at 8°C, and 2 weeks for regrowth in a greenhouse for screening resistance. The present method reduced the experimental period to 12 weeks and facilitated repeated experiments throughout the year.