The influence of foliar splatter with the amino acid arginine on some physiological characteristics of cowpea plant Vigna unguiculatal L. exposed to salt stress

Abstract

   The experience was conducted utilizing pots according to the completely random design method (RCBD) during the cultivation period 2022-2023 to study The influence of splatter by arginine and from condensations (0.50.100) Mg. L^-1and irrigating with saltine NaCl and in condensations (0.5.10.15) ds.m^-1 on some physiological adjectives of cowpea plants The outcoms indicated important increasing in the content untill  vitamin C in the plant, Proline, H₂O₂, Salicylic acid at the treatment with the same concentration from NaCl, especially at the concentration of 15 ds.m^-1 While there was important decreases  in the activity of the enzyme catalase  in this concentration from NaCl, when spraying the plant with the arginine lead to signification increased in the activity of the enzyme catalase and the content of  vitamin C in the plant and Salicylic acid while there was a significant decreases  in the Proline, H₂O₂ on especially at the concentration of 100 mg. L^-1 of arginine  even for over loop have an effect on the physiological characteristics.