Effect of polyethylene glycol and trehalose sugar on some biochemical parameters of rice plant (Oryza sativa L. )‎ cultivar Anbar 33

Abstract EN

A laboratory experiment was conducted using the anvils to study the effect of water-tightening induced by polyethylene glycol (PEG), and the effect of interference between PEG and trehalose sugar, in some biochemical parameters of Iraqi rice plant Anbar 33.

Rice seeds were planted in plastic anvils 12 cm in diameter and weighing 700 g of a mixture of 1: 2 with dates and sand, respectively, were added to the anvils with watering water PEG substance with three (5, 10 and 15) g / l and trehalose sugar at three concentrations (0, 5 and 10) mmol / L and the experiment continued for 10 weeks, after which the concentrations of each of Proline and sucrose sugar amino acid, also estimated the efficacy of the catalase and Peroxidase enzymes, the results showed a significant increase in the concentration of both proline and sucrose and the activity of the catalyzes (CAT) enzyme as well as the decrease in the effectiveness of peroxidase (POD) while improved trehalose added externally on the leaves the effectiveness of an enzyme (POD) as well as a decrease in both sucrose and proline and the effectiveness of the enzyme (CAT) Especially at the 5 and 10 mmol / L concentrations of trehalose sugar.

The study aims to determine the role of trehalose sugar when interacting with polyethylene glycol in improving rice plant tolerance to water stress.