Recovery of faba bean (Vicia faba L. ) plants as affected by glyphosate [Egypt]
1985
Shaban, Sh.A. (Cairo Univ. (Egypt). Faculty of Agriculture) | El-Hattab, A.H. | Hassan, E.A. | Abo-Suoud, M.R.
Two field experiments were carried out during 1982/83 and 1983/84 seasons at Experimental Farm National Research Centre at Shalakan, Kalubia Governorate, Egypt to study the effect of glyphosate induced- phytotoxicity on growth and yield and its components of faba bean by the application of growth factors, i.e., growth regulators, amino acids and nutrient elements at different concentrations. A split plot design with four replications was used in both seasons. The results indicated clearly that: Glyphosate at two higher doses exhibited varying degrees of phytotoxic symptoms and reduced all the faba bean plant characters the number of branches/ plant; GA3 alone or in a mixture with cytokinin; reversed the phytotoxic effect of the glyphosate herbicide on decreasing the plant height Cytokinin at 4/1000, phenylalanine and tryptophan at both levels, as well as GA3 at 50 ppm, reversed the phytotoxic effect of the glyphosate herbicide in decreasing the weight/ plant. Cytokinin at 4/1000, tryptophan at both concentrations, as well as, phenylalanine at 500 ppm, reversed the phytotoxic effect of the glyphosate herbicide in decreasing the number and dry weight of pods, seed yield per plant and per-h.
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