Authors
Susumu Goto
University Forest in Hokkaido, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yamabe, Furano,, Hokkaido, Japan
A. Watanabe
Forest Tree Breeding Center, Independent Administrative Institution, Ishi, Juo, Hitachi,, Ibaraki, Japan
F. Miyahara
Fukuoka Prefecture Forest Research and Extension Center, Toyoda 1438-2, Yamamoto-machi, Kurume,, Fukuoka, Japan
Y. Mori
Fukuoka Prefecture Forest Research and Extension Center, Toyoda 1438-2, Yamamoto-machi, Kurume,, Fukuoka, Japan