1. Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea
2. College of Agriculture, Fisheries and Forestry, Romblon State University, Romblon 5505, Philippines
3. National Forest Seed Variety Center, Chungju 27495, Republic of Korea
4. Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Republic of Korea
5. Department of Information and Statistics, Chungbuk National University, Cheongju 28644, Republic of Korea
6. The Korean Academy of Science and Technology, Seongnam 13630, Republic of Korea