Genetic divergence between pumpkin accessions for morphoagronomic characters

Authors

  • Rayanne Maria Paula Ribeiro Universidade Federal Rural do Semi-Árido
  • Carla Caroline Alves Pereira Universidade Federal Rural do Semi-Árido
  • Hamurábi Anizio Lins Universidade Federal Rural do Semi-Árido https://orcid.org/0000-0002-4548-9108
  • Michele Barboza Universidade Federal Rural do Semi-Árido https://orcid.org/0000-0003-0918-9690
  • Islan Diego Espindula de Carvalho Universidade Federal Rural do Semi-Árido
  • Glauber Henrique de Sousa Nunes Universidade Federal Rural do Semi-Árido
  • Lindomar Maria da Silveira Universidade Federal Rural do Semi-Árido https://orcid.org/0000-0001-9719-7417
  • Aurélio Paes Barros Júnior Universidade Federal Rural do Semi-Árido https://orcid.org/0000-0002-6983-8245

DOI:

https://doi.org/10.14393/BJ-v38n0a2022-54198

Keywords:

Cucurbita moschata Duch, Diversity, Grouping.

Abstract

The objective of this work was to evaluate the diversity between accessions of Cucurbita moschata from the Northeast of Brazil and preserved at the Universidade Federal Rural do Semi-Árido (UFERSA) in Mossoró-RN. The experiment was carried out in complete randomized blocks, with two replications and three plants per plot. The treatments consisted of 51 accessions of C. moschata Duch and a commercial cultivar of Cucurbita maximum Duch. After ripening, the fruits were harvested (one fruit per plant) and evaluated for morpho-agronomic descriptors. Univariate and multivariate variance analyzes were performed. From the dissimilarity matrices, accessions were hierarchically grouped by the UPGMA method. The relative contribution of quantitative characters to the divergence was also estimated. There was an effect of accessions (p <0.01 or p <0.05) for all characters in univariate analyzes, indicating that there is heterogeneity between the accessions evaluated. Considering the quantitative descriptors, the accessions formed eight groups and for the qualitative six groups. When considering the two sets of descriptors, the accessions were distributed in eight groups but presenting a greater distribution of accessions. The descriptors that most contributed to the discrimination of accessions were the firmness of the pulp and the length of the fruit.

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Published

2022-02-16

How to Cite

PAULA RIBEIRO, R.M., ALVES PEREIRA, C.C., HAMURÁBI ANIZIO LINS, BARBOZA, M., ESPINDULA DE CARVALHO, I.D., DE SOUSA NUNES, G.H., DA SILVEIRA, L.M. and BARROS JÚNIOR, A.P., 2022. Genetic divergence between pumpkin accessions for morphoagronomic characters. Bioscience Journal [online], vol. 38, pp. e38002. [Accessed28 May 2022]. DOI 10.14393/BJ-v38n0a2022-54198. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/54198.

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Section

Agricultural Sciences