Correlation and Path Coefficient Analyses of Yield in Cacao (Theobroma cacao L.)

Authors

  • Omotayo Olalekan Adenuga Plant Breeding Department, Cocoa Research Institute of Nigeria, Ibadan, 23401, Nigeria
  • Abigail Funlayo Adepoju Plant Breeding Department, Cocoa Research Institute of Nigeria, Ibadan, 23401, Nigeria
  • Ibrahim Olalekan Sobowale Plant Breeding Department, Cocoa Research Institute of Nigeria, Ibadan, 23401, Nigeria
  • Olayinka Olufemi Olaniyi Plant Breeding Department, Cocoa Research Institute of Nigeria, Ibadan, 23401, Nigeria
  • Oluwatobi James Areola Plant Breeding Department, Cocoa Research Institute of Nigeria, Ibadan, 23401, Nigeria
  • Terkula Felix Nyamkyume Plant Breeding Department, Cocoa Research Institute of Nigeria, Ibadan, 23401, Nigeria

DOI:

https://doi.org/10.30564/jbr.v4i3.4694

Abstract

Cacao (Theobroma cacao L.) is an important commodity tree crop which produces the cocoa bean, a major source of income for most West African countries and many smallholder farmers. Declining yield of cacao is a major limitation to cocoa production in Nigeria. This study aimed at determining the correlations of the phenotypic traits that were related in the yield of the cacao genotypes. Nine cacao hybrids produced from some high-yielding parents in the research farm of Cocoa Research Institute of Nigeria, Ibadan, Nigeria were evaluated from 2012 through 2017 in Owena (7°11’ N, 5°1’ E), Ondo state, Nigeria. Character Correlations and Path Coefficient Analysis were used in the description of the performance of the genotypes. The study concluded that significant genotypic and phenotypic correlations existed among many of the pairs of the fruit and bean characters with one another and with pod index, suggesting a complex contribution of these characters either positively or negatively to growth and yield in cacao, and that fruit and bean traits are determinants of yield in cacao.

Keywords:

Cacao; Yield; Correlation; Phenotypic traits; Path coefficients

References

[1] Adenuga, O.O., Adepoju, A.F., Olaniyi, O.O., et al., 2018. Relationships among bean yield traits in some Cacao (Theobroma cacao L.) genotypes. Journal of Agricultural Science and Technology B. 8(5), 303- 310.

[2] Goenaga, R., Guiltinan, M., Maximova, S., 2018. Yield Performance and Bean Quality Traits of Cacao Propagated by Grafting and Somatic Embryo-derived Cuttings. American Society for Horticultural Science.

[3] John, K., Madhavi Santhoshi, M.V., Rajasekhar, P., 2019. Correlation and path analysis in groundnut (Arachis hypogaea L). International Journal of Current Microbiology and Applied Sciences. 8(12), 1521-1529.

[4] Falconer, D.S., 1989. Introduction to Qualitative Genetics. 2nd edition. Longman. London. pp. 340.

[5] Miller, P.A., Williams, V.C., Robinson, H.P., et al., 1958. Estimates of Genotype and Environmental Variances and Covariances in Upland Cotton and Their Implications in Selection. Agronomy Journal. 50, 126-131.

[6] Lowry, R., 2009. Appendix to chapter 4: The significance of a correlation coefficient. http://faculty.vassar.edu/lowry/chaapx.html. (28 December 2009). London, UK. pp. 22.

[7] Dewey, L.R., Lu, K.H., 1957. A correlation and path analysis of crested heat grass seed production. Agronomy Journal. 51, 515-518.

[8] Searle, S.R., 1961. African indigenous vegetables: An overview of the cultivated species. Chatham., UK. pp. 89-98.

[9] Ariyo, O.J., 1989. Variation and heritability of fifteen characters in okra (Abelmoschus esculentus (L.) Moench). Tropical Agricultural Journal (Trinidad). 67, 215-216.

[10] Arshad, M., Ali, N., Ghafoor, A., 2006. Character correlation and path coefficient in soybean glycine max (1.) Merrill. Pakistan Journal of Botany. 38, 121- 130.

[11] Kalambe, A.S., Wankdade, M.P., Deshmakh, J.D., et al., 2019. Correlation studies in cowpea (Vigna unguiculata L.). Journal of Pharmacognosy and Phytochemistry. 8(3), 321-323

[12] Santos, E.A.D., Almeida, A.A.F.D., Branco, M.C.D.S., et al., 2018. Path analysis of phenotypic traits in young cacao plants under drought conditions. PloS ONE. 13(2), e0191847. DOI: https://doi.org/10.1371/journal.pone.0191847

[13] Wood, G.A., Lass, R.A., 1985. Cacao 4th edition, Longman, U.K. pp. 620.

[14] Thondaiman, V., Rajamani, K., 2014. Correlation and path coefficient analysis of yield components in cacao (Theobroma cacao L.). Journal of Plantation Crops. 42(3), 358-363.

Downloads

How to Cite

Adenuga, O. O., Adepoju, A. F., Sobowale, I. O., Olaniyi, O. O., Areola, O. J., & Nyamkyume, T. F. (2022). Correlation and Path Coefficient Analyses of Yield in Cacao (Theobroma cacao L.). Journal of Botanical Research, 4(3), 1–8. https://doi.org/10.30564/jbr.v4i3.4694

Issue

Vol. 4 , Iss. 3 (July 2022)

Article Type

Article

License

Copyright © 2022 Author(s)

Creative Commons License

This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

Crossref
Scopus
Google Scholar
Europe PMC