Collection period and indolebutyric acid on the rooting of adult pecan plant cuttings

Authors

  • Márcio Alberto Hilgert Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Avenida Bento Gonçalves, no 7.712, Agronomia, CEP 91540-000 Porto Alegre, RS.
  • Larissa Campos de Sá Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Avenida Bento Gonçalves, no 7.712, Agronomia, CEP 91540-000 Porto Alegre, RS.
  • Marília Lazarotto Universidade Federal de Pelotas, Rua Benjamin Constant, no 989, Porto, CEP 96010-020 Pelotas, RS.
  • Paulo Vitor Dutra de Souza Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Avenida Bento Gonçalves, no 7.712, Agronomia, CEP 91540-000 Porto Alegre, RS.
  • Carlos Roberto Martins Embrapa Clima Temperado, Rodovia BR-392, Km 78, 9º Distrito, Monte Bonito, Caixa Postal 403, CEP 96010-971 Pelotas, RS.

DOI:

https://doi.org/10.1590/S1678-3921.pab2020.v55.26790

Keywords:

Carya illinoinensis, callus, clonal propagation

Abstract

The objective of this work was to evaluate the effect of the collection period and of the exogenous application of indolebutyric acid (IBA) on the rooting of cuttings from adult pecan (Carya illinoinensis) plants. The experiment was carried out in a greenhouse with intermittent mist irrigation, from December 2017 to October 2018. The experimental design was completely randomized, in a 4x5 factorial arrangement, with four collection periods (spring, summer, autumn, and winter) and five concentrations of IBA (0, 2,000, 4,000, 6,000, and 8,000 mg L-1). For the cuttings collected during summer and autumn, there was a linear relationship between rooting and the increase of the IBA concentration. The best results for rooting, callus formation, mean number of roots, mean root length, and root dry and fresh mass are obtained for the cuttings collected during summer, with the application of 8,000 mg L-1 IBA on the base of each cutting, under a mist irrigation system. The rooting of cuttings from adult pecan plants with the application of IBA is possible, being an alternative propagation method for the species.

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Published

2020-10-23

How to Cite

Hilgert, M. A., Sá, L. C. de, Lazarotto, M., Souza, P. V. D. . de, & Martins, C. R. (2020). Collection period and indolebutyric acid on the rooting of adult pecan plant cuttings. Pesquisa Agropecuaria Brasileira, 55(X), e01656. https://doi.org/10.1590/S1678-3921.pab2020.v55.26790

Issue

V.55, Jan./Dec., 2020 :Continuos publication

Section

POMOLOGY