WATER STRESS INDUCED CHANGES IN PHYSIOLOGICAL ATTRIBUTES OF MUNGBEAN

Q2 Environmental Science

Open Ecology Journal Pub Date : 2023-06-01 DOI:10.59619/ej.5.1.8

S. A. Siddiqui, Apple Mahmud, Q. Khaliq, M. Haque, A. Solaiman, M. Karim

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Abstract

The production of mungbean [Vigna radiata (L.)] is adversely affected by drought in the tropics and sub-tropics. This study investigated the physiological responses of six mungbean varieties viz. BUmug 2, BUmug 4, BARI Mung-5, BARI Mung-6, Binamoog-5 and Binamoog-8 to non-stress (80% of field capacity) and water deficit (50% of field capacity) conditions. The experiment was laid out in a completely randomized design having four replications at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur. The variety Binamoog-5 showed the highest level of physiological parameters related to drought tolerance, such as proline content (32.57%), xylem exudation (577.00 mg hr-1 and 383.70 mg hr-1) and total chlorophyll content (2.65 mg g-1 and 2.81 mg g-1) at preflowering and pod development stage, photosynthesis (38.94 μmol m-2 s-1 CO2 ), transpiration (15.00 mg H2 O/dm2 /h), and relative water content (66.14%), whereas that showed the lowest level of cell membrane thermostability (63.8%) under water stressed condition, followed by Binamoog-8. The measured physiological characteristics of other varieties were affected noticeably. Therefore, Binamoog-5 may be considered as a resource for drought tolerant genetic material.

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水分胁迫对绿豆生理特性的影响

绿豆[Vigna radiata (L.)]的生产受到热带和亚热带干旱的不利影响。研究了6个绿豆品种BUmug 2、BUmug 4、BARI Mung-5、BARI Mung-6、Binamoog-5和Binamoog-8对非胁迫(80%田间容量)和水分亏缺(50%田间容量)条件下的生理反应。该实验在加济浦尔Bangabandhu Sheikh Mujibur Rahman农业大学的研究领域进行了完全随机设计，有四个重复。品种Binamoog-5在花前和荚果发育阶段的脯氨酸含量(32.57%)、木质部渗出量(577.00 mg hr-1和383.70 mg hr-1)、总叶绿素含量(2.65 mg g-1和2.81 mg g-1)、光合作用(38.94 μmol m-2 s-1 CO2)、蒸腾作用(15.00 mg H2 O/dm2 /h)和相对含水量(66.14%)等与抗旱性相关的生理参数均达到最高水平。而在水分胁迫条件下，细胞膜热稳定性最低(63.8%)，其次是binamog -8。其他品种的生理特性也受到显著影响。因此，binamog -5可能被认为是一种耐旱遗传物质资源。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Open Ecology Journal Environmental Science-Environmental Science (all)

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期刊介绍： The Open Ecology Journal is an open access online journal which embraces the trans-disciplinary nature of ecology, seeking to publish original research articles, reviews, letters and guest edited single topic issues representing important scientific progress from all areas of ecology and its linkages to other fields. The journal also focuses on the basic principles of the natural environment and its conservation. Contributions may be based on any taxa, natural or artificial environments, biodiversity, spatial scales, temporal scales, and methods that advance this multi-faceted and dynamic science. The Open Ecology Journal also considers empirical and theoretical studies that promote the construction of a broadly applicable conceptual framework or that present rigorous tests or novel applications of ecological theory.