by Choi, S.T, Ahn, H.G, Chang, Y.D. (Kyongbuk National University, Taegu (Korea Republic). Department of Horticulture), Gu, G.C, Song, K.S. (Kyongbuk National University, Taegu (Korea Republic). Department of agricultural Chemistry)
Published in Journal of the Korean Society for Horticultural Science (01.06.1998)