CONDENSED TANNINS IN LEUCAENA AND THEIR RELATION TO PSYLLID RESISTANCE

Leucaena species and hybrids were examined to determine the relative c ontent of condensed tannins and its relationship to susceptibility to defoliation by the Leucaena psyllid (Heteropsylla cubana). The intersp ecific Leucaena hybrid KX2 (L. leucocephala x L. pallida) was examined for variability of condensed tannin levels. A broad range of condense d tannin values were found which indicate potential for improved forag e value through selection for KX2 trees with lower condensed tannin wh ile maintaining psyllid resistance. A significant correlation was not found linking condensed tannins and psyllid resistance.