1. Department of Applied
Life Science, College of Life and Environmental Science, Konkuk University, Seoul 143-701, Korea
2. Department of Agricultural
Biotechnology and Research Institute of Agriculture and Life Sciences, School of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Korea
3. National Institute
of Crop Science, RDA, Suwon
441-857, Korea
4. Department of Crop
Science, College of Life and Environmental Science, Chungbuk National University, Cheongju 361-763, Korea