Plant growth regulation with triazoles of the dioxanyl type |
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Authors: | J Jung C Rentzea W Rademacher |
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Institution: | 1. BASF Agricultural Research Center, D-6703, Limburgerhof, Federal Republic of Germany 2. BASF Central Research Laboratory, D-6700, Ludwigshafen, Federal Republic of Germany
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Abstract: | The plant growth retarding activities of several dioxanylalkyl and dioxanylalkenyl triazoles were determined in seedlings of barley, rice, and oilseed rape. Out of these groups some substances proved to be among the most efficient growth retardants known. The compound 1-(4-trifluormethyl)-2-(1,2,4-triazolyl-(1))-3-(5-methyl-1,3-dioxan-5-yl)-propen-3-ol was investigated more closely. Shoot growth is reduced more intensively than root growth by this compound. At lower dosages root growth may even be stimulated. The action of this retardant can be antagonized by gibberellin A3 and byent-kaurenoic acid. It is suggested that its main biochemical action is to block the reactions that lead froment-kaurene toent-kaurenoic acid in the course of gibberellin biosynthesis. |
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