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Path coefficient and Exploratory Factor Analysis in Rose (Rosa × hybrida L.) Genotypes

Author: Shisa Ullas P., Namita, M.K. Singh, Sapna Panwar, Amitha Mithra Sevanthi, Akshay Talukdar and Kanwar P. Singh

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Abstract

The present experiment was carried out to analyze the path coefficient and exploratory factors for vegetative and floral traits of ninety-six rose genotypes. The path coefficient analysis provided information about the direct and indirect effect of examined traits on flower weight per plant. Quantitative analysis was carried out for all the characters which are directly or indirectly associated with the yield and yield contributing traits. The highest direct positive effect on flower weight per plant was exhibited by the number of petals per flower followed by bud diameter, petal length, flower diameter, and neck length. The traits such as the number of buds per plant, prickle density, number of secondary branches, and number of primary branches had a direct negative effect on flower weight. Exploratory factor analysis revealed that the number of petals per flower, bud length, prickle density, stem girth, number of flowers per plant, petal length, and flower weight are major factors contributing to the genetic variation in different rose genotypes.

Keywords

Path analysis, Morphological traits, Exploratory factor analysis, Rose genotypes

Conclusion

For a better understanding of the crop improvement, the path co-efficient analysis and exploratory factor estimate are crucial. It provides precise measurements of each component character's direct and indirect effects on flower weight. The conclusion that can be drawn from path coefficient analysis and factor analysis is that the number of petals per flower is the most significant trait for flower weight, followed by bud diameter, petals length, flower diameter, and neck length. Therefore, these traits should be taken into consideration as selection criteria for flower weight, helping to improve yield in rose genotypes.

References

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How to cite this article

Shisa Ullas P., Namita, M.K. Singh, Sapna Panwar, Amitha Mithra Sevanthi, Akshay Talukdar and Kanwar P. Singh (2022). Path coefficient and Exploratory Factor Analysis in Rose (Rosa × hybrida L.) Genotypes. Biological Forum – An International Journal, 14(4): 980-984.