Agronomy (Apr 2023)

Determination of Total Carotenoids and β-Carotene in Germplasm of Pumpkin Caboclo (<i>Cucurbita maxima</i>)

  • Michele Barboza,
  • Fernanda Larisse dos Santos Lima,
  • Rayanne Maria Paula Ribeiro,
  • Carla Caroline Alves Pereira,
  • Manoel Galdino dos Santos,
  • Flávio Pereira da Mota Silveira,
  • Aline Kelly Queiroz do Nascimento,
  • Ana Beatriz Rocha de Jesus Passos,
  • Paulo Sérgio Fernandes das Chagas,
  • João Everthon da Silva Ribeiro,
  • John Victor Lucas Lima,
  • José Travassos dos Santos Júnior,
  • Glauber Henrique de Sousa Nunes,
  • Lindomar Maria da Silveira,
  • Aurélio Paes Barros Júnior

DOI
https://doi.org/10.3390/agronomy13041109
Journal volume & issue
Vol. 13, no. 4
p. 1109

Abstract

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The genus Cucurbita has been mentioned as a good source of carotenoids, including β-carotene, which is a precursor of vitamin A. However, the variability observed for the genus denotes the individual need to invest in the species. An experiment was carried out with the aim of evaluating the content of total carotenoids and β-carotene in C. maxima germplasm. Treatments consisted of 23 accessions and two commercial cultivars of C. maxima. The content of total carotenoids, β-carotene, and the pulp color of the accessions were evaluated. Clustering was performed, and the components of genotypic variance, mean heritability, and accuracy were calculated. The grouping led to the formation of four groups where the total carotenoid content influenced the formation the most. There was no difference in color parameters. High variability was observed for total carotenoids in the studied genotypes (22.28 µg/g to 49.58 µg/g) and β-carotene (7.81 µg/g to 13.75 µg/g). Accessions CMAX-09, CMAX-10, CMAX-12, CMAX-13, and CMAX-14 showed the highest levels of total carotenoids and β-carotene.

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