Balasimha, D.Subramonian, N.2014-07-082014-07-082007-02In:Proceedings, PLACROSYM VI, RRII, Kottayam, 16-20 Dec. 1984. Edited by M. R. Sethuraj and others 83-88http://hdl.handle.net/123456789/3812The pattern of light penetration through arecanut canopy and its effect on specific leaf weight (SLW), chlorophyll content and nitrate reductase (NR) activity of cocoa in six different spacings of arecanut-cocoa mixed cropping was studied. The PAR was maximum under wider arecanut spacings. The cocoa leaf NR activity and SLW also were higher over the season in such spacings. The chlorophyll content however did not show any definite trend.enArticle