Cupuaçu tree genotype selection for an agroforestry system environment in the Amazon

Authors

  • Rafael Moysés Alves Embrapa Amazônia Oriental, Travessa Doutor Enéas Pinheiro, s/no, Marco, CEP 66095-903 Belém, PA.
  • Saulo Fabrício da Silva Chaves Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.
  • Rodrigo Silva Alves Instituto Nacional de Ciência e Tecnologia do Café (INCT Café), Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.
  • Thalita Gomes dos Santos Universidade Federal do Ceará, Avenida da Universidade, no 2.853, CEP 60020-181 Fortaleza, CE.
  • Dênmora Gomes de Araújo Universidade Federal Rural da Amazônia, Avenida Presidente Tancredo Neves, no 2.501, Montese, CEP 66077-830 Belém, PA.
  • Marcos Deon Vilela de Resende Embrapa Café, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.

DOI:

https://doi.org/10.1590/S1678-3921.pab2021.v56.26892

Keywords:

Theobroma grandiflorum, fruit tree breeding, genetic selection, REML/BLUP

Abstract

The objective of this work was to select cupuaçu (Theobroma grandiflorum) tree progenies and individuals based on their agronomic traits, and, indirectly, to identify those adapted to an agroforestry system (AFS) environment in the Brazilian Amazon. For this purpose, 25 full-sib progenies were planted and tested in consortium with black pepper (Piper nigrum), banana (Musa spp.), and bacuri (Platonia insignis) trees. The experiment was carried out in a randomized complete block design, with five replicates and three plants per plot, from 2005 to 2019. For the statistical analyses, the phenotypic averages for production and incidence of witches’ broom disease, evaluated during 11 harvests, were used. Superior progenies and individuals were identified using the mixed model methodology (REML/BLUP), which led to the selection of ten plants from five families with superior agronomic traits. Cupuaçu tree progenies 6, 36, 37, 49, and 52 are the ones that best adapt to the environment of a multispecies AFS in the Amazon region because of their agronomic traits under competitive conditions. Ten matrices show agronomic potential and indirect adaptation to the AFS and can be used as clonal cupuaçu cultivars in this environment.

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Published

2021-02-22

How to Cite

Alves, R. M., Chaves, S. F. da S., Alves, R. S., Santos, T. G. dos, Araújo, D. G. de, & Resende, M. D. V. de. (2021). Cupuaçu tree genotype selection for an agroforestry system environment in the Amazon. Pesquisa Agropecuaria Brasileira, 56(Y), e02139. https://doi.org/10.1590/S1678-3921.pab2021.v56.26892

Issue

V.56, Jan./Dec., 2021 :Continuos publication

Section

GENETICS