ISHS Acta Horticulturae 239: VI International Symposium on Growth Regulators in Fruit Production
UNSYMMETRICAL DIMETHYLHYDRAZINE AND DAMINOZIDE RESIDUES IN FRESH AND PROCESSED CHERRIES AND APPLES |
| Authors: | J. Hurter, T. Umiker, T. Ramp, R. Schumacher |
| Abstract:
Daminozide is the common name for succinic acid-2,2-dimethyl hydrazide (SADH), a widely used plant growth retardant. Its application in commercial fruit growing at a concentration of 1300 ppm results in residues of 8–10 ppm after 47–61 days in cherries and 0.7–2.7 ppm after 59–120 days in apples. After cooking of the corresponding fruit pulps for 30 min. at pH 3.6–4.0, 30–160 ppb of unsymmetrical dimethyl-hydrazine (UDMH) were detected, using gas chromatography. Because of the potential danger of UDMH as a tumorigenic compound, the use of SADH for agricultural purposes has been abandoned in Switzerland. | |
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