Assessment of Genotypic and Phenotypic Correlation coefficient in Thirty Seven Genotypes of Rose (Rosa spp.)

Author: Ashwini and S.G. Angadi

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Abstract

The association between 15 vegetative and floral parameters along with their magnitude towards number of flowers per plant was studied among 37 germplasm of rose. Correlation revealed that number of flowers per plant had a the positive and highly significant association with number of primary branches per plant, plant spread in NS direction, plant spread in EW direction, plant height, leaf area per leaflet, number of leaves per plant, number of secondary branches per plant, leaf area index, stalk length, stem girt, inter-nodal length, thorn density per 15 cm shoot and leaf length both at phenotypic and genotypic level. Since these characters had highly significant and positive correlations with number of flowers per plant so a direct selection from genotypes will be more effective for improvement if this crop

Keywords

correlation coefficient, genotypic, phenotypic, rose

Conclusion

Based on the above investigation, it can be concluded that cultivars were having substantial variability for most of the characters. A promising rose cultivar with number of flowers per plant could be obtained by selection on the basis of plant height, plant spread, number of primary and secondary branches per plant, leaf area index, and stem length. Therefore, selection should be based on plant height, stem length and number of flowers per plant for better cultivars. Further studies on correlation among the characters and its relation with plant height, plant spread, number of primary and secondary branches, stalk length and number of flowers per plant are recommended for better information and understanding the improvement process

References

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How to cite this article

Ashwini and S.G. Angadi (2024). Assessment of Genotypic and Phenotypic Correlation coefficient in Thirty Seven Genotypes of Rose (Rosa spp.). Biological Forum – An International Journal, 16(7): 200-203