Multivariate analysis for identifying drought-tolerant barley (Hordeum vulgare L.) genotypes using stress indices

IF 1 Q3 MULTIDISCIPLINARY SCIENCES

Data in Brief Pub Date : 2025-03-07 DOI:10.1016/j.dib.2025.111452

Nadira Mokarroma , Md Romij Uddin , Imrul Mosaddek Ahmed , AHM Motiur Rahman Talukder , Abul Fazal Mohammad Shamim Ahsan , Zakaria Alam

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Abstract

The stress indicator widely expresses the impression of drought stress on barley genotypes throughout the crown root initiation period, highlighting its worldwide effect on production. So, it was urgent need to identify the drought-resilient genotypes considering the multi-trait genotype ideotype distance index (MGIDI). The study, conducted to evaluate the grain output and genetic variations of 50 barley genotypes using stress indicator. Under optimal conditions, genotype IBON14 achieved the highest grain yield of 9.55 g/plant, while under drought stress, genotype BD7194 produced 7.31 g/plant. Significant correlations, both positive and negative (ranging from 0.66 to 1.00), were observed among stress tolerance indices and yields. Using the MGIDI index, genotype BD7194 was selected as the most drought-tolerant, followed by BD7188, IBON14, BD8579, and IBON16, with a 5 % selection intensity. Factor study among the MGIDI revealed diverse tolerance and susceptibility indices, emphasizing the robustness of the certain genotypes, all of which were grouped under a single factor. The selected genotypes exhibited a selection gain (%) between 39.9 % and 113 %. Moreover, the selection differential, calculated from predicted values, varied from 0.25 to 2.54, and broad-sense heritability was determined to be ≥0.99. This study emphasizes the usefulness of the MGIDI index in selecting drought-tolerant barley genotypes, with BD7194 proving to be the most resilient, exhibiting high genetic stability and selection gains.

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胁迫指标广泛表达了干旱胁迫对大麦基因型在整个冠根萌发期的影响，凸显了干旱对产量的全球性影响。因此，迫切需要根据多性状基因型表意型距离指数（MGIDI）确定抗旱基因型。本研究利用胁迫指标评估了 50 个大麦基因型的谷物产量和遗传变异。在最佳条件下，基因型 IBON14 的籽粒产量最高，为 9.55 克/株；而在干旱胁迫下，基因型 BD7194 的籽粒产量为 7.31 克/株。抗逆性指数与产量之间存在显著的正相关和负相关（范围从 0.66 到 1.00）。利用 MGIDI 指数，基因型 BD7194 被选为最耐旱，其次是 BD7188、IBON14、BD8579 和 IBON16，选择强度为 5%。对 MGIDI 的因子研究显示了不同的耐旱性和易感性指数，强调了某些基因型的稳健性，所有这些基因型都被归入一个因子。所选基因型的选择增益（%）介于 39.9 % 和 113 % 之间。此外，根据预测值计算出的选择差值从 0.25 到 2.54 不等，广义遗传率≥0.99。这项研究强调了 MGIDI 指数在筛选耐旱大麦基因型中的作用，其中 BD7194 被证明是抗旱性最强的基因型，表现出较高的遗传稳定性和选择收益。

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

Data in Brief MULTIDISCIPLINARY SCIENCES-

CiteScore

3.10

自引率

0.00%

发文量

996

审稿时长

70 days

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