Assessment of Mungbean Germplasm through Morphological Characterization using DUS Criteria
Author: Sunny Thakur and Stuti Sharma
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Abstract
The goal of the research was to use DUS descriptors to describe 303 green gram germplasm lines. Twenty-one DUS descriptors, including anthocyanin colour at the cotyledonary stage, plant, stem, leaf, flower, pod, and seed traits, were used for evaluation. The fact that 18 out of the 21 descriptors showed variation, demonstrates the usefulness of these descriptors in identifying genotypes and, more importantly, suggests that there is a significant amount of genetic differentiation that can be exploited for the improvement of individual genotypes as well as for protection and identification. The time of flowering, plant growth habits, petiole colour, pod size, seed colour, and seed size are six of the morphological DUS traits that were found to indicate trimorphic variation; eleven characters, such as the anthocyanin coloration of cotyledons, plant habits, stem colour, leaf colour, leaf vein colour, flower colour, pod colour of premature pods, pod position, pod curvature, seed lustre, and seed shape, clearly indicates dimorphic categorization. The genotype diversity for key plant characteristics including plant growth habit and determinate types suggests the use of novel germplasm for improvement utilising these characteristics. The registration with PPV & FRA and seed purity testing may be done using the DUS descriptor data produced with distinctive profiles of the improved genotypes.
Keywords
Characterization, DUS, Diversity, Germplasm, Mungbean, Morphology
Conclusion
The findings of the morphological characterisation carried out in accordance with the DUS recommendations assisted in the accurate genotype categorization. Based on the results of this research, it can be said that the germplasm has a significant degree of variety for features including flowering time, plant growth habit, petiole colour, pod size, seed lustre, seed colour, and seed size. Marketable consumer features include seed colour, seed size, and seed shape. After determining the stability and heritability of the features, genotypes with this morphology may be chosen as donors in a crossing procedure.
References
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How to cite this article
Sunny Thakur and Stuti Sharma (2023). Assessment of Mungbean Germplasm through Morphological Characterization using DUS Criteria. Biological Forum – An International Journal, 15(8): 77-89.