Effect of gibberellic acid, potassium nitrate and silicic acid on biochemical constituents of groundnut (Arachis hypogaea L.) seedling exposed to saline water

Abstract

Salinity reduces the ability of plant utilize water and causes a reducing in growth rates, as well as changes in plant metabolic processes in most of the crops including groundnut. The molecules like silicic, gibberellic acid and potassium nitrate known to alleviates its adverse effect. Thus, green house experiment was conducted to investigate the effect of exogenous application of gibberellic acid, potassium nitrate and silicic acid under salt stress on biochemical parameters of groundnut. The observations were recorded for the biochemical parameters total soluble sugars, reducing sugars, total phenol, proline and glycine betaine. The result was suggested that the biochemical constituents were adversely affected due to salinity stress in groundnut. On application of GA3, KNO3 and silicic acid increased total soluble sugars, reducing sugars, total phenol, proline and glycine betaine. This investigation has suggested gibberellic acid, potassium nitrate and silicic acid, as a potential biomolecules affecting certain biomolecules related to osmotic adjustment as against the abiotic stress like salinity.