Skip to main content
Log in

Mixed model-based indices for selection of sweet potato genotypes for different agronomic aptitudes

  • Published:
Euphytica Aims and scope Submit manuscript

Abstract

The objective of this study was to identify the aptitude of sweet potato genotypes derived from botanical seeds and select them for the aptitudes human consumption, ethanol production, and animal feed through separate indices. A row–column incomplete block design was used, restricting relatedness in the draw. A total of 1604 half-sib genotypes resulting from recombination of 55 clones from the germplasm collection of the Federal University of Lavras were evaluated. The accessions UFVJM 58 and UFVJM 61 were used as controls, for a total of 1606 treatments. The aptitude indices corresponded to the mean values of the 10 traits evaluated, with weights assigned to each trait according to the aptitude of interest. The data of all three aptitudes were transformed and standardized. Then, using the Zi index and with 2.5% selection pressure, the most promising genotypes were selected through the best linear unbiased predictor according to the traits evaluated and the aptitude of interest. Sixty genotypes were selected (out of 1604 tested) based on one or more of the three reported aptitudes: 25 showed a single aptitude, whereas 20 showed dual aptitude and 15 showed triple. The data obtained will provide information for breeding programmes of the sweet potato crop. There is great genetic variability for the traits evaluated, facilitating the selection of new genotypes, with the possibility of obtaining new cultivars important for national food sovereignty and making a significant social contribution.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

Download references

Acknowledgements

The authors thank CNPq and FAPEMIG for the financial resources and scholarships provided for the project. The present study was conducted with the support of the Brazilian Federal Agency for the Support and Evaluation of Graduate Education (CAPES)—Funding Code 001.

Funding

The present study was conducted with the support of the Brazilian Federal Agency for the Support and Evaluation of Graduate Education (CAPES)—Funding Code 001.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Valter Carvalho de Andrade Júnior.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

The authors declare that the present research did not involve any experimentation on humans or animals.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

de Oliveira Silva, J.C., de Andrade Júnior, V.C., de Sousa Bueno Filho, J.S. et al. Mixed model-based indices for selection of sweet potato genotypes for different agronomic aptitudes. Euphytica 218, 86 (2022). https://doi.org/10.1007/s10681-022-03033-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10681-022-03033-9

Keywords

Navigation