Recovery of Faba Bean (Vicia faba L.) Plants as Affected by Glyphosate

Abstract

Two field experiments were carried out during 1982/83 and 1983/84 seasons at Experimental Farm of National Research Centre at Shalakan, Kalubia Governorate, Egypt, to study the reversal 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 obtained results indicated clearly that: Glyphosate at the two higher doses exhibited varying degrees of phytotoxic symptoms and reduced all the faba bean plant characters except 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 on decreasing the dry 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 on decreasing the number and dry weight of pods, seed yield per plant and per ha.

Effects of two rhizobacteria inoculants on maize growth performance at different concentrations of glyphosate

“…This is also in line with the findings of Michel et al (2016) and Labri et al (2013) who also observed no significant difference in the number of leaves produced by plants at different concentrations of glyphosate when compared with control. It is at variance with the findings of Shaban et al (1987) who reported an increase in the number of branches and leaves per plant in faba beans at high doses of glyphosate.…”

Effect of Glyphosate on Performance of Faba Bean Varieties Under Heavy Infestation of Orobanche crenata

“…This however, comes at an expense, where signs of phytotoxicity effects of the herbicide start showing on the faba bean plants, including leaf wrinkling and chlorosis . Fortunately, these effects could be reversed by improving the host's nutritional status after spraying (Shaban et al 1987).…”

Amelioration of herbicide stress with plant growth regulators and nutrients in transplanted rice

“…Treatment of Vicia faba with either gibberellic acid (GA3 at 50 ppm) alone or in mixture with cytokinin reversed the phytotoxic effect of glyphosate herbicide. (Shaban et al 1987). Foliar nutrient solutions containing N, P, K, Mn, Zn, B and Mo resulted in partial recovery of the negative herbicide effects on photosynthetic rate in Zea mays, Triticum aestivum and Glycine max under field condition (Haley 2017).…”