Phytocidal properties of hydrazide,thiosemicarbazide and thiadiazole derivatives of benzylic, cinnamic, O-nitrobenzoic and resorcylic acids. Part 1: Effect on wheat seedlings | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 1, Issue 1, 1987, Pages 1-8 PDF (971.05 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.1987.461693 | ||
| Authors | ||
| A. H. Ahmed* ; El. A, M. Abdallah; L. M. Abd-El-Nabi; A. M. El-Shazly | ||
| Pesticide Chemistry, Plant Protection Dept. Faculty of Agriculture, Alexandria University | ||
| Abstract | ||
| Twelve hydrazide, thiosemicarbazide and thiadiazole derivatives of benzylic, cinnamic, O-nitrobenzoic and resorcylic acids were synthesized, purified and analyzed. Tie prepared compounds were tested fer their phytocidal activities against shoot and root syste11E of wheat seedlings using plain agar technique. However, a few compounds only exhibited strong phytogidal activity against these seedlings, while most of the compounds were completely inactive and showed no effect. Generally, the root system was more sensitive than the shoot to the tested compounds. The hydrazide derivative of resorcylic acid was less toxic to wheat seedlings than the thiosenocarbazide or thiadiazole ones of the sank acid. highest phytocidal effect was obtained from the hydrazide derivatives of O-nitrobenzoic acid. All hydrazide derivatives were active compounds and caused a strong phytocidal action, except the hydrazide derivative of resorcylic acid. However, the thiosenicarbazide and thiadiazole derivatives of resorcylic acid were the most effective derivatives in this respect and the results consistent for all shoot and root system oi seedlings. Conversely, the hydrazide derivative of the same acid caused a slight phytocidal effect . | ||
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