P-1 R. Iwasaki¹, J. Mozafari², S. Ohta¹ (¹Department of Bioscience, Fukui Prefectural University, ² National Plant Gene-Bank, Iran)
A brief report on the cultivated, weedy and wild rye collection in Iran by a Japanese-Iranian cooperative field research project

Fukui Prefectural University and National Plant Gene-Bank of Iran carried out cooperative field researches in 2003 and 2004 in the northern and eastern parts of Iran, one of the diversity centers of rye. They surveyed the Elburz Mountains, the northern part of the Zagros Mountains and the southern coastal regions of the Caspian Sea. 82 samples of Secale cereale with brittle and non-brittle spikes were collected at 58 sites, and 9 samples of S. montanum were collected from its natural populations. We report the geographical distribution of the collection sites and the frequency of the plants with brittle spikes in each S. cereale population. This project is financially supported-by the Japanese Society for the Promotion of Science (Grant-in-Aid No.15255012).

P-2 M. Niwa¹, H. Ozkan², S. Ohta¹ (¹Department of Bioscience, Fukui Prefectural University,²Faculty of Agriculture, Cukurova University, Turkey)
Distinct difference in seed dormancy among the grains on different florets of the same spikes in some Aegilops species

A field observation at natural populations of some Aegilops species revealed a distinct difference in seed dormancy between the grains bearing on first florets and those on second florets of the same spikes. The latter germinated soon after shattering of spikes, while the former showed deeper dormancy and often germinated in the next year of shattering. Germination in a total of 63 accessions of four Aegilops species was examined under a controlled condition. The result confirmed the observation at natural populations. This study is a part of the cooperative research project between Fukui Prefectural University, Japan and Cukurova University, Turkey, and is financially supported by the Japanese Society for the Promotion of Science (Grant-in-Aid No.15255012).

P-3 T. Hoshino¹, Oleg B. Tkachenko², I. Yumoto³, N. Matsumoto⁴ (¹New Energy and Industrial Development Organization, ²Main Botanical Garden, Russian Academy of Sciences, ³National Institute of Advanced Industrial Science and Technology (AIST), ⁴ National Institute for Agro-Environmental Sciences)
Geographical distribution and mating characteristics of snow mold, Typhula ishikariensis in Eurasia

Speckled snow mold, Typhula ishikariensis(basidiomycetes) is the important psychrophilic fungal pathogen of winter cereals in the Northern Hemisphere. This fungus is distributed in Japan, Europe and North America. However, there is no report of the geographical distribution in central part of Eurasia (ex. Siberia). We surveyed this fungal distribution in Russian Far East and Siberia, and T. ishikariensis was widely distributed in Russian Far East and maritime climate of Siberia (however, this fungus was not found in continental climate in Siberia; ex. Yakutsk). This fungus was divided into two sub-groups (biological species I and II; BSI and BSII) from mating characteristics. BSI was widely distributed in Eurasia, however, BSII was not found from central Siberia to Baltic countries.