Multivariate Hierarchical evaluation of Gerbera (Gerbera jamensoii) varieties by Biplots analysis for flowering traits

Author: Shivani Goel, Sonia Singh, Ajay Verma, Arvind Malik, Devender Singh Dahiya and Sarita Devi

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Abstract

Analysis of Variance observed significant differences among varieties of Gerbera for the flowering traits studied during 2002-23 cropping season. Earlier opening of first flower was observed in variety Ankur followed by Golianth, maximum flower diameter was recorded in Rosalin, while the minimum was recorded in Brilliance. The maximum number of ray florets expressed by Rosalin and minimum was recorded in Dana Ellen. Rosalin showed maximum length of ray floret while minimum was expressed in Dana Ellen. The maximum and minimum shelf life of flowers was recorded in Ankur and Golianth respectively. The maximum fresh weight found for Rosalin followed by Stanza, Golianth, Ankur, while minimum was for White House. The highest heritability was recorded fresh flower weight, length of ray floret, stalk length, shelf life, and flower diameter. High heritability coupled with high genetic advance was observed for days to first flowering, plant height (cm), stalk length (cm) and number of disc florets/flower. Flower diameter had maintained positive with number of ray florets per flower, fresh flower weight, dry flower weight and negative with days to first flower, Stalk diameter had expressed negative relationship with shelf life, length of ray floret, dry flowers weight and positive with number of flowers in March as well as with February month. The multivariate hierarchical clustering as per Ward’s method observed Atlanta and Golianth formed the first cluster of varieties followed by cluster of Brillance with White House while remaining six varieties formed the last bigger group. Biplot analysis found that Stalk diameter has expressed straight line angle with days to first flower weight and obtuse angles with shelf life. Number of ray floret had maintained ninety degree angle with dry flower weight, length of ray floret with shelf life, Number of flowers in March month with days to first flower.

Keywords

Flowering traits variation, heritability, genetic advance, multivariate cluster analysis

Conclusion

Earlier opening of first flower was observed in variety Ankur followed by Golianth, maximum flower diameter was recorded in Rosalin, while the minimum was recorded in Brilliance. The maximum number of ray florets expressed by Rosalin and minimum was recorded in Dana Ellen. Rosalin showed maximum length of ray floret while minimum was expressed in Dana Ellen. The maximum and minimum shelf life of flowers was recorded in Ankur and Golianth respectively. The maximum fresh weight found for Rosalin followed by Stanza, Golianth, Ankur, while minimum was for White House. The highest heritability was recorded fresh flower weight, length of ray floret, stalk length, shelf life, and flower diameter. Flower diameter had maintained positive with number of ray florets per flower, fresh flower weight, dry flower weight and negative with days to first flower, Stalk diameter had expressed negative relationship with shelf life, length of ray floret, dry flowers weight and positive with number of flowers in March as well as with February month. The multivariate clustering observed Atlanta and Golianth formed the first cluster of varieties followed by cluster of Brillance with White House while remaining six varieties formed the last bigger group. Biplot analysis found that Stalk diameter has expressed straight line angle with days to first flower weight and obtuse angles with shelf life.

References

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How to cite this article

Shivani Goel, Sonia Singh, Ajay Verma, Arvind Malik, Devender Singh Dahiya and Sarita Devi (2023). Multivariate Hierarchical evaluation of Gerbera (Gerbera jamensoii) varieties by Biplots analysis for flowering traits. Biological Forum – An International Journal, 15(9): 227-236.