To obtain basic information of diseases resistant degree of Korean wheat cultivars, we investigated the diseases occurrence and examined field resistance of the materials against to the major diseases. Disease occurrence was investigated in southern regions from March to May, 2012. And the resistance degree was tested to 30 Korean wheat cultivars seeded in autumn.
After wintering season, Soil-borne wheat mosaic virus(SBWMV) was infected as 29.4% in the regions. The sharp eyespot was infected about 43% in stem base even if it was not showed distinct symptoms yet. Three Fusarium spp. were identified from rotten stem base and root crown. After heading, mainly fungal damage such as powdery mildew, leaf rust, sharp eyespot and Fusarium head blight were prevalent. Around the harvest season, discoloration of grain by precipitation also occurred and which was different infection degree depending on the each cultivar. 14 cultivars as Geurumil, Dajoongmil showed resistant leaf yellowing spot symptoms. In powdery mildew resistance investigation, recently developed cultivars were more susceptible comparing to none or a little symptom manifestation of older varieties.

• Jung-Mi Park(Department of Agricultural Biology, Chonbuk National University)
• Jae-Seong Choi(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Chun-Sik Kang(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Kyung-Hoon Kim
• Chun-Sik Kang(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Kwang-Min Cho(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Yang-Kil Kim(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Mi-Ja Lee(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Ki-Jong Kim(Department of Rice and Winter Cereal Crop, NICS, RDA)
• Jong-Chul Park(Department of Rice and Winter Cereal Crop, NICS, RDA) Corresponding Author