Chemical basis of resistance in soya bean to cabbage looper, Trichoplusia ni.

Reference Report for IND92021101

Title:	Chemical basis of resistance in soya bean to cabbage looper, Trichoplusia ni.
Authors:	Sharma, H.C., Norris, D.M.
Source:	J. Sci. Food Agric. 1991, 55(3):353-364
Abstract:	Thin layer chromatography resolved nine major compounds form 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.

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