Volume 26, Issue 3 (2024)
JAST 2024, 26(3): 593-606 |
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Jahanbakhshi M, Sadeghi M, Tohidi M, Fotouhi F, Fazelzadeh S A. Efficacy of Ascorbic Acid as A Cofactor to Increase Irrigation Water-Use Efficiency (IWUE) and Mung Bean (Vigna Radiata L.) Yield. JAST 2024; 26 (3) :593-606
URL: http://jast.modares.ac.ir/article-23-66796-en.html
URL: http://jast.modares.ac.ir/article-23-66796-en.html
1- Department of Agronomy, Dezful Branch, Islamic Azad University, Dezful, Islamic Republic of Iran.
2- Department of Agronomy, Dezful Branch, Islamic Azad University, Dezful, Islamic Republic of Iran. ,mehdisadegh3775@gmail.com
2- Department of Agronomy, Dezful Branch, Islamic Azad University, Dezful, Islamic Republic of Iran. ,
Abstract: (786 Views)
Ascorbic Acid (AsA) is a water-soluble antioxidant that makes plants resistant to environmental stresses by neutralizing free radicals. However, it is unknown to what extent this antioxidant may help Improve Irrigation Water Use Efficiency (IWUE) and reduce the adverse effects of water deficit on mung bean growth and yield. In an attempt to clarify whether exogenous application of this antioxidant could alleviate the adverse effects of water deficit on mung bean plants, two seasons (2019 and 2020) of field experiments were conducted using twelve combinations of three AsA levels (distilled water as a control and 10 and 20 mM of AsA) and four irrigation water amounts (25, 50, 75, and 100% of the plant water requirement). Based on the results, the maximum IWUE was obtained with W50AsA20 in the two seasons. The beneficial effect of AsA application on IWUE was determined under water stress conditions (W50). High water deficit (W50) plus applying 20 mM ascorbic acid, i.e. W(50)AsA(20) treatment, improved seed yield about 43.7% as in the two seasons compared to high water deficit without ascorbic acid, i.e. W(50)AsA(0). In 2019 and 2020, water saving in W(50)AsA(20) compared to the control, was equal to 50% (2,550 and 2,500 m3 ha-1, respectively). In W(50)AsA(20) treatment, the increase of seed yield ranged between 79-107% in both seasons. Thus, the results reveal the potency of AsA to save water under low water supply and increase yield in mung bean fields.
Article Type: Original Research |
Subject:
Irrigation and Drainage
Received: 2023/01/14 | Accepted: 2023/04/26 | Published: 2024/03/31
Received: 2023/01/14 | Accepted: 2023/04/26 | Published: 2024/03/31
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