Metabolism of the fungicide triforine in barley plants

Abstract

Abstract The metabolic fate of [ 3 H]‐triforine in barley plants has been studied. 15 and 30 days after treatment, unchanged triforine amounted to 57.5 and 43.2% respectively, and of three soluble metabolites detected, piperazine (0.3 and 4.0%) and N‐[2, 2,2‐trichloro‐1‐(piperazin‐1‐yl)ethyl] formamide (12.9 and 8.4%), the latter for the first time as a metabolite in plants, were identified using t.1.c. with four solvent systems. The solid residue contained 23.1 and 38.2% of bound label after 15 and 30 days respectively.