Affiliation: | (1) National Agricultural Research Center, Tsukuba, Ibaraki 305-8666, Japan;(2) Yokohama Plant Protection Station, Yokohama, Japan;(3) National Institute of Fruit Tree Science, Tsukuba, Japan;(4) National Institute of Fruit Tree Science, Morioka, Japan;(5) Shizuoka University, Shizuoka, Japan |