Deciphering Genetic Variability and Stability for Yield Improvement in Mungbean (Vigna radiata)
Genetic Variability and Stability in Mungbean
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Authors
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Chandra Mohan Singh
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Mukul Kumar
Banda University of Agriculture and Technology, Banda
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Hitesh Kumar
Banda University of Agriculture and Technology, Banda
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Priyanka Kaundal
Banda University of Agriculture and Technology, Banda
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Chirag
Banda University of Agriculture and Technology, Banda
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Pradyum Maurya
Banda University of Agriculture and Technology, Banda
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Ruchi
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Anurag
Banda University of Agriculture and Technology, Banda
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Aditya Pratap
ICAR-Indian Institute of Pulses Research, Kanpur
Keywords:
Adaptability, DNA fingerprinting, Functional markers, Greengram, G × E interaction, Promising genotypes, Stability, SSRAbstract
Mungbean [Vigna radiata (L.) R. Wilczek] is an important short-duration and widely adaptable pulse crop known for its nutritional and
soil-ameliorative properties. However, its productivity still lags due to photo- and thermo-period sensitivity, the seasonal specificity of
the available cultivars, and susceptibility to a wide range of biotic and abiotic factors. Therefore, breeding for developing stable elite
cultivars is urgently required to improve productivity. A total of 55 genotypes of mungbean, including released varieties and elite
lines, were tested over a period of three years to identify the stable elite lines for high yield. A wide range of variability was recorded for seed yield per plant (SYP) and its key component traits. Based on correlation coefficient analysis, PL and NSP were found to be key
components. The significant interaction of genotype × year indicated the crucial role of the environment on SYP. The correlation
coefficient analysis revealed that pod length (PL) and number of seeds per pod (NSP) were key yield contributing traits. GGE biplot
analysis demonstrated that five genotypes, i.e. G42 (BMS 19-3), G17 (Shikha), G49 (ML 134), G18 (TRAM-18), and G27 (BMS 18-4), were
found most stable and high-yielding genotypes over the year. Further, the molecular characterisation of these selected genotypes
with SSR and functional markers opens the scope for their effective utilization in the mungbean breeding programme
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