Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama 240 8501 Faculty of Education and Human Sciences, Yokohama National University, Yokohama 240 8501 Keywords: 1
2 R K/S K/S K/S K/S K/S K/S K/SR R K/S K/S K/S K S R K/S K/S K/S K/S K/S K/S
3 X r g b X r g b r g b X R G B r g b R r G g B b r g b
K/S K/S
4 6 2 44 28 47 48 46 J. Oleo Sci 55