Sankarasubramony, H.Menon, K.P.V.Pandalai, K.M.2014-07-042014-07-042007-02Indian Coconut Journal Apr-Jun 1951 p-165-170http://hdl.handle.net/123456789/3648Data is given on the manganese contents of tissues collected from healthy and diseased coconut trees and of soils of the respective areas. The manganese contents vary between very wide ranges,from traces up to 435 p.p.m. in soils and from traces to 176.5 p.p.m. in tissue samples. These make it difficult to diagnose the disease as involving a manganese factor and there appears to be no correlation between disease incidence and manganese status of the soils and tissues of the ,coconut palm. Work to elucidate the problem further is in progress in these laboratories.enArticle