Bud-break promoters for the improvement of the budburst of pecan cultivars

Authors

  • Horacy Fagundes da Rosa Júnior Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Caixa Postal 354, CEP 96010-900 Pelotas, RS.
  • Mateus da Silveira Pasa Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Caixa Postal 354, CEP 96010-900 Pelotas, RS.
  • Marcelo Barbosa Malgarim Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Caixa Postal 354, CEP 96010-900 Pelotas, RS.
  • Ezequiel Helbig Pasa Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Caixa Postal 354, CEP 96010-900 Pelotas, RS.
  • Júlia Damé Fonseca Paschoal Universidade Federal de Pelotas, Faculdade de Biotecnologia, Caixa Postal 354, CEP 96010-900 Pelotas, RS.

Keywords:

Carya illinoinensis, bud break, budburst homogeneity, dormancy release

Abstract

The objective of this work was to evaluate the effect of different bud-breaking substances on the budburst of the Barton, Desirable, and Jackson pecan (Carya illinoinensis) cultivars. The experimental design was a randomized complete block with four replicates. The treatments consisted of spraying different rates of commercial bud-break promoters on the trees of these cultivars, in order to induce budburst. The budburst percentage of axillary buds and the budburst heterogeneity index (BHI) were evaluated. Regardless of the used rate, the application of the hydrogen cyanamide product improved the budburst of the tested cultivars and reduced the BHI. In addition, water soluble N + Ca at 6% and water soluble N + organic C soluble in water at 7% significantly improve the budburst and reduce the BHI of the evaluated cultivars, being, therefore, potential alternatives to replace hydrogen cyanamide.

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Published

2022-11-22

How to Cite

Rosa Júnior, H. F. da, Pasa, M. da S., Malgarim, M. B., Pasa, E. H., & Paschoal, J. D. F. (2022). Bud-break promoters for the improvement of the budburst of pecan cultivars. Pesquisa Agropecuaria Brasileira, 57(Z), e02956. Retrieved from https://apct.sede.embrapa.br/pab/article/view/27159

Issue

V.57, Jan./Dec., 2022 :Continuos publication

Section

PLANT PHYSIOLOGY