ASSESSMENT OF GENETIC DIVERSITY AMONG BLACK GRAM (Vigna mungo (L.) Hepper) ACCESSIONS USING MORPHOLOGICAL TRAITS

M. VIGNESH¹, R. VIJAYALAKSHMI², A. JEYA BRINDHA³, E. MENAKA⁴, S.M. SAMYUKTHA⁵*
¹Department of Plant Breeding and Genetics, Imayam Institute of Agriculture and Technology, Thuraiyur, 621 206, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Department of Plant Breeding and Genetics, Imayam Institute of Agriculture and Technology, Thuraiyur, 621 206, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
³Department of Plant Breeding and Genetics, Imayam Institute of Agriculture and Technology, Thuraiyur, 621 206, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁴Department of Plant Breeding and Genetics, Imayam Institute of Agriculture and Technology, Thuraiyur, 621 206, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁵Department of Plant Breeding and Genetics, Imayam Institute of Agriculture and Technology, Thuraiyur, 621 206, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
* Corresponding Author : samyuktharia@gmail.com

Received : 02-10-2021     Accepted : 27-10-2021     Published : 30-10-2021
Volume : 13     Issue : 10       Pages : 10906 - 10908
Int J Agr Sci 13.10 (2021):10906-10908

Keywords : Blackgram, Correlation Analysis, Principal Component Analysis
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Plant Breeding and Genetics, Imayam Institute of Agriculture and Technology, Thuraiyur, 621 206, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All authors equally contributed

Twenty germplasm accessions were raised in augmented block design during Kharif 2021 and evaluated for five quantitative traits. The morphological data were subjected to correlation, path analysis, principal component analysis and cluster analysis. The correlation studies revealed that number of pods and hundred seed weight were positive and significantly associated with single plant yield. Principal component analysis based on five quantitative traits identified two principal components contributing about 72.67 per cent to the total variability among the accessions studied. The variations in PC 1 were represented by yield traits, PC 2 by plant height and flowering characters. The number of pods per plant and hundred seed weight are the important yield attributing traits and could be utilized for further improvement in black gram breeding programmes

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