Alleviating of Lead toxicity using salicylic acid foliar spray in common bean (Phaseolus vulgaris L.) plant

Abstract

This experiment consist of combination influence of salicylic    acid and lead on common bean plants which conducted in greenhouse of Biology Department in the College of Science- University of Salahaddin- Erbil, with foliar application of Salicylic acid (SA) concentrations (0,100,200,400 ppm) and Lead (Pb) concentrations (0, 5, 10 ppm) on vegetative growth, yield and chemical components of common bean. The study consists of ten treatments with four replications. The following growth parameters were observed plant height, number of leaves, number of branches, dry weight of shoot system, water content leaf area, and yield characteristics such as pod number seed number dry weight of 100 seeds, and chemical contents and mineral contents of leaves. The results notices that SA significantly decreased the harmful effects of Pb on the vegetative growth characteristics such as height of plant number of leaves, number of branches, weight dry of shoot system, also on yield parameters such as number of seeds per pod, dry weight of 100 seeds and on chemical contents such as chlorophyll a and total chlorophyll contents, total protein content of leaves and total sodium.