Abstract

Abstract Demand for dehydrated onions, Allium cepa L., is becoming considerable in world markets. Any changes in dry matter, total soluble solids, or pungency of onions may affect quality of the dehydrated product. Several studies have been made on the influence of herbicides on weed control and onion yield (2, 4, 5) but little has been reported on the effects of herbicides on quality characteristics. The purpose of this study was to evaluate the effects of chlorbromuron (N'-(4-bromo-3-chlo-rophenyl)-N-methoxy-N-methylurea), chloroxuron (N’-4-(4-chlorophenoxy) phenyl-N,N-dimethylurea), propachlor (2-chloro-N-isopropylacetanilide), CP-50144 (2-chloro-2′,6′-diethyl-N-(methoxymethyl) acentilide), Sindone 0263 (1, 1-dimethyl-4,6-diisopropyl-5-indanylethylketone + 7-indanylisomer), propanil (3’, 4′-dichloropropionanilide), and prometryne (2,4-bis(iso-propylamino)-6-(methylthio)-s-triazine) on dry matter content, total soluble solids, and pungency of onions.

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