Multivariate based Genetic Diversity Analysis among Linseed (Linum usitatissimum L.) Germplasm Accessions by Principle Component Analysis

Author: Konreddy Sathish, Deepika Parte, Khemlata Thakur, Deenanath Sahu, T. Lakshmi Pathy and Nandan Mehta

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Abstract

The present study was conducted at the research cum Instructional farm, Indira Gandhi Krishi Vishwavidyalaya, (IGKV), Raipur, India. A total of 100 linseed genotypes and four standard checks were evaluated in Augmented RBD design during two rabi seasons rabi 2020-2021 and rabi 2021-2022. To estimate the genetic diversity the observations were recorded for 10 quantitative yield attributing traits viz., days to 50% flowering, days to maturity, plant height (cm), number of primary branches plant-1, number of secondary branches plant-1, number of capsules plant-1, number of seeds capsule-1, 1000 seed weight (g), seed yield plant-1, oil content (%) to determine multivariate based diversity analysis using Principle Component Analysis (PCA). Crop diversity studies provides scope for plant breeders for the development of novel and improved cultivars with most desirable traits by selecting suitable parents and also in studying the magnitude of genetic variability present in the germplasm accessions. Therefore, the present study on agro-morphological traits to identify the superior germplasm accessions that can contribute as potential donors for future exploitation in the selection and breeding of linseed.

Keywords

Augmented design, genetic diversity, Principle Component Analysis (PCA), germplasm

Conclusion

By Principal component analysis (PCA) few important traits were identified which have a primary role role in categorizing the existing variation in the germplasm accessions studied. The Primary branches plant-1, Secondary branches plant-1, No. of capsules plant-1, and seed yieldplant-1 in different principlecomponents were shown to be the most essential foraccounting the variance. Hence, these characters must be given prior importance while selecting genotypes forvarietal development. Since, within a population variability is the important component plant breeding and also availability of genetic variability is must. From the findings, the high degree of genetic diversity among genotypes was identified, also the traits that are contributing towards thediversity of population. Therefore, the results found from this study will be assisting in selecting suitable parental lines for enhancing different morphological traits.

References

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How to cite this article

Konreddy Sathish, Deepika Parte, Khemlata Thakur, Deenanath Sahu, T. Lakshmi Pathy and Nandan Mehta (2022). Multivariate based Genetic Diversity Analysis among linseed (Linum usitatissimum L.) Germplasm Accessions by Principle Component Analysis. Biological Forum – An International Journal, 14(4): 876-881.