EFFECT OF GLYCINE BETAINE ON SOME BIOCHEMICAL TRAITS OF MUNG BEAN UNDER WATER STRESS CONDITIONS
A. H. F. Al-Fahdawi | W. A. T. Al-Fahdawi
A field experiment was carried out during the spring season of 2022 at Research Station No.2, College of Agriculture, University of Anbar. The experiment followed a randomized complete block design (RCBD) in a split-plot arrangement with three replications to study the effect of four concentrations of Glycine Betaine acid (0, 50, 100, 150 mg L-1), denoted as GB2, GB3, and GB4 respectively, on some biochemical traits of mung bean under water stress conditions. The water stress levels were S1 (irrigated with 100% of available water, serving as the control treatment), and S2, S3, and S4, representing depletion rates of 25%, 50%, and 75% of available water, respectively. The results showed that the GB4 concentration was superior in total chlorophyll content in leaves (1.677 mg g-1), relative water content (55.7%), proline content (124.74 µg g-1), catalase enzyme activity (22.84 units ml-1), and peroxidase enzyme activity (28.42 units ml-1). The water stress treatment S1 excelled in giving the highest values for total chlorophyll content in leaves (1.842 mg g-1), relative water content (60.9%), proline content (144.38 µg g-1), catalase enzyme activity (29.69 units ml-1), and peroxidase enzyme activity (34.07 units ml-1). The interaction between water stress level S1 and GB4 concentration resulted in the highest rates for total chlorophyll content in leaves (1.930 mg g-1), relative water content (67.2%), proline content (186.30 µg g-1), catalase enzyme activity (35.13 units ml-1), and peroxidase enzyme activity (35.19 units ml-1).
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