Kappanna, A.N.Sitakara rao, V.Syama, sundar, K.2011-11-242011-11-242011-11-24http://hdl.handle.net/1968424/113Willstatter and stoll1 in 1913 determined the chlorophyll content of Ulva lactuca and found the ratio of chlorophylls a to b 1.3 later the chlorophyll contents of marine algae of different regions were reported by willstatter.enArticle