TY  - JOUR
AU  - Mim, Mumtarim Haque
AU  - Das, Biswajit
AU  - Khatun, Sheikh Mahfuja
AU  - Akter, Sadia
AU  - Naim, Jannatul
AU  - Hossain, Mohammad Anowar
AU  - Pessarakli, Mohammad
AU  - Hossain, Mohammad Anwar
PY  - 2025
DA  - 2025/08/07
TI  - Morpho-Biochemical Characterization and Genetic Analyses of the Traits of Mungbean Genotypes Confined with Yield Attributing Traits and Salinity Stress Tolerance
JO  - OBM Genetics
SP  - 306
VL  - 09
IS  - 03
AB  - Low phenotypic and genotypic variability for yield-attributing traits and susceptibility to salinity stress are constraints of mungbean productivity. The objectives of the study are to phenotype a set of exotic mungbean genotypes for yield-attributing traits and salinity tolerance, as well as to conduct genetic analysis of these traits for efficient selection. Three consecutive experiments were conducted to fulfill these objectives. In the first experiment, 26 mungbean genotypes were evaluated for yield traits under a randomized complete block design (RCBD) with three replications. Significant variation was found for all studied traits. Genotypes Durdona, BARI Mung-6, Binamoog-8, and BMX 1137 were high-yielding, while Binamoog-8, Binamoog-9, BMX 11140, BMX 11154, and BMX 11157 were categorized as early maturing. Traits including plant height, primary branches, pods per plant (PPP), pod length (PL), 100-seed weight (HSW), and yield per plant exhibited high heritability and genetic advance as a percentage of the mean. Yield per plant showed a significant positive correlation with PPP, PL, and HSW. In experiment II, the salinity tolerance of nine high-yielding mungbean genotypes was evaluated at the seedling stage using a completely randomized design with two treatments: control and salt stress (EC = 8 dS/m). Fourteen-day-old seedlings were subjected to salt stress for 7 days. Data on various root and shoot traits were recorded along with biochemical characteristics, including chlorophyll content, root and shoot Na+/K+ ratio, lipid peroxidation, H2O2, and proline content. These characteristics led to the identification of the genotypes Durdona and BMX 1131 as salt-tolerant at the seedling stage. The third experiment assessed the reproductive-stage salinity tolerance in pot culture under 8 dS/m salt stress using an RCBD with three replications. Saline stress was imposed after opening the first flower and continued for three weeks. Salt stress significantly reduced yield and related traits in most genotypes. BMX 1141 showed the most significant yield reduction (74.73%), whereas BMX 11111, BMX 11122, BMX 11170, BMX 1131, and Durdona exhibited lower declines. Stress tolerance indices classified Durdona as salt-tolerant at the reproductive stage. These findings underscore the potential for breeding salt-tolerant mungbean genotypes using Durdona to enhance mungbean productivity.
SN  - 2577-5790
UR  - https://doi.org/10.21926/obm.genet.2503306
DO  - 10.21926/obm.genet.2503306
ID  - Mim2025
ER  -