AbstractDaminozide residues in fruit from sweet cherry trees were determined over a period of 4 years as part of an investigation into the effects of growth regulators. Analysis was by the usual colorimetric method. Additionally, for the 2 final years, a gas‐liquid chromatographic method was developed to determine the 1,1‐ dimethylhydrazine produced by hydrolysis of daminozide residues and to confirm the results from the first met
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