Institution: | aAdvanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea;bDepartment of Wood Science & Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea;cKorea Forest Seed & Variety Center, 670-4 Suhoe-ri, Suanbo-myeon, Chungju-si, Chungcheongbuk-do 380-941, Republic of Korea |