%A H C Sharma
%A D M Norris
%I John Wiley & Sons
%V 55
%L icrisat4477
%J Journal of the Science of Food and Agriculture
%N 3
%P 353-364
%D 1990
%X Thin layer chromatography resolved nine major compounds from the 60%-methanol extractables from PI 227687 soya bean (Glycine max (L) Merrill) leaves. The flavonoids, daidzein, an unidentified flavonoid X2 (Rf 0·19), glyceollins, sojagol and coumestrol exhibited antifeedant and/or antibiotic effects against the larvae of cabbage looper, Trichoplusia ni Hb. The results indicate that several compounds in PI 227687 soya beans contribute to its antifeedant and/or antibiotic effects against T ni. The role of these compounds in plant resistance to insects is discussed.
%T Chemical basis of resistance in soya bean to cabbage looper, Trichoplusia ni