Morphological Characterization of Mungbean [Vigna radiata (L.) Wilczek] Genotypes using DUS Descriptors

Author: Navreet Kaur Rai, Ravika, Rajesh Yadav, Amit and Karuna

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Abstract

Mungbean [Vigna radiata (L.) Wilczek] is one of the major pulses of India, diversely grown in different agro-climatic zones during summer and kharif seasons. Distinctness, Uniformity and Stability (DUS) characterization is a significant approach in identifying and evaluating diverse genotypes for quality seed production. Therefore, the present experiment was conducted to characterize and evaluate variation present in mungbean genotypes through DUS descriptors. One hundred forty-two mungbean genotypes were analysed using 29 agro-morphological (21 qualitative and 8 quantitative) DUS descriptors in randomized block design with two replications during kharif 2021. Among twenty-nine DUS characters studied, nine characters showed trimorphic variation, viz., plant growth habit, leaf shape, leaf size, seed size, plant height, number of branches per plant, number of pods per plant, number of seeds per pod and seed yield per plant. Seventeen characters had dimorphic variation and three characters (plant habit, stem pubescence and pod pubescence) were found similar in all the genotypes. A remarkable amount of variation was found in all the mungbean genotypes for these DUS descriptors.

Keywords

Distinctness, Uniformity, Stability, Vigna radiata (L.) Wilczek, quality seed production

Conclusion

In present study, a significant amount of variation was reported in all the genotypes studied using diverse DUS descriptors. Trimorphic grouping was seen in nine characters and three characters showed lack of variation in them. Rest of seventeen characters had dimorphic grouping of all the genotypes. Overall, present DUS characterization of mungbean genotypes can be further used in future breeding programmes as reference to identify and classify various genotypes into different categories for specific trait. The present study also facilitates the easy registration of new genotypes with these distinct characters under PPVFRA and highlighted the importance of introduction of new germplasm for the broadening of genetic base at Research station.

References

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How to cite this article

Navreet Kaur Rai, Ravika, Rajesh Yadav, Amit and Karuna (2023). Morphological Characterization of Mungbean [Vigna radiata (L.) Wilczek] Genotypes using DUS Descriptors. Biological Forum – An International Journal, 15(5): 326-338.