MUNGBEAN VARIETIES EXPRESSED VARIATION IN MORPHOPHYSIOLOGICAL TRAITS AND YIELD UNDER WATER STRESS

Q2 Environmental Science

Open Ecology Journal Pub Date : 2023-06-01 DOI:10.59619/ej.5.1.6

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

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Abstract

Mungbean [Vigna radiata (L)], an important grain legume in Bangladesh, is grown during kharif1 (pre-monsoon) season, when drought is a common abiotic stress. This study was thus conducted in pots inside semi-controlled vinylhouse to assess the effect of water stress on growth and yield of some popular mungbean varieties, viz. BUmug 2, BUmug 4, BARI Mung-5, BARI Mung-6, Binamoog-5 and Binamoog-8. Two water regimes, 80% field capacity (FC; non-stress) and 50% FC (water stress) were maintained. The experiment was laid out in a completely randomized design having four replications. Under water stress the variety Binamoog-5 had the largest leaf area (850.4 cm2 ), while BUmug 4 had the smallest (695.1 cm2 ). At maturity the reduction of shoot dry weight due to water stress was the highest in BUmug 4 (20.6%) while that was the lowest in Binamoog-5 (12.5%). The highest reduction of pod number due to water stress was recorded in BUmug 4 (45.1%) and the lowest was in Binamoog-5 (32.9%) followed by Binamoog-8 (34.5%). The highest reduction in seed number pod-1 due to water stress was in BUmug 4 (21.8%) and the lowest was in Binamoog-5 (16.79%). Water deficit did not exert significant effect on 100-seed weight in the varieties except BUmug 4. Binamoog-5 had the maximum yield plant-1 under both control (12.8 g) and water deficit (7.4 g) conditions followed by Binamoog-8, while BUmug 4 had the lowest in both control (11.6 g) and water deficit (6.3 g) conditions. It was concluded that Binamoog-5 and Binamoog-8 can be potential varieties for field trial for cultivation under water deficit conditions.

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绿豆品种在水分胁迫下表现出形态生理性状和产量的变化

绿豆[Vigna radiata (L)]是孟加拉国一种重要的谷物豆科植物，在旱季(季风前)种植，而干旱是常见的非生物胁迫。本试验采用半受控乙烯棚盆栽，研究了水分胁迫对绿豆品种BUmug 2、BUmug 4、BARI Mung-5、BARI Mung-6、Binamoog-5和Binamoog-8生长和产量的影响。两种水制度，80%的现场容量(FC;非胁迫)和50% FC(水分胁迫)。实验采用完全随机设计，重复4次。水分胁迫下，品种binamook -5叶面积最大(850.4 cm2)， BUmug 4最小(695.1 cm2)。成熟期水分胁迫对茎部干重的影响以BUmug - 4最大(20.6%)，binamog -5最小(12.5%)。水分胁迫导致的荚果数量减少最多的是BUmug - 4(45.1%)，其次是Binamoog-5(32.9%)，其次是Binamoog-8(34.5%)。水分胁迫导致种子数pod-1减少最多的是BUmug - 4(21.8%)，最小的是binamog -5(16.79%)。除BUmug 4号外，水分亏缺对各品种百粒重影响不显著。binamog -5在对照(12.8 g)和水分亏缺(7.4 g)条件下产量最高，binamog -8次之，而BUmug 4在对照(11.6 g)和水分亏缺(6.3 g)条件下产量最低。结果表明，Binamoog-5和Binamoog-8可作为水分亏缺条件下大田试验栽培的潜在品种。

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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.