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Revista mexicana de ciencias agrícolas

versión impresa ISSN 2007-0934


CHAVEZ-GONZALEZ, Judith Libertad et al. 24-Epibrasinolide (24-EBL) as rooting inducer of blueberry cuttings on different substrates. Rev. Mex. Cienc. Agríc [online]. 2023, vol.14, n.1, pp.63-74.  Epub 19-Jun-2023. ISSN 2007-0934.

Brassinosteroids are steroidal phytohormones that have been widely used in agriculture, few studies on the effect they can have in inducing root formation in blueberry (Vaccinium corymbosum) cuttings have been conducted. The objective of this research was to evaluate the effect of 24-epibrasinolide (24-EBL) at different concentrations (0, 20, 40 and 60 μg L-1) and of the substrate on the rooting of cuttings, a mixture of river sand and tezontle (ST), peat (Peat Moss®) and perlite (PMP), a mixture of coconut fiber and perlite (CFP), peat (Peat Moss®) (PM) and coconut fiber (CF). The variables evaluated 30 days after the establishment of the experiment were percentage of survival (%SC), percentage of rooted cuttings (%RC), number of roots per cutting (NR), main root length (MRL) and total length of the root system (TLR). The data obtained were subjected to analysis of variance and comparison of means with the Tukey test. The results showed that blueberry cuttings with 24-EBL at a concentration of 60 μg L-1 in ST substrate have 84.7% of survival and 67.76% of rooted cuttings. Cuttings exposed to 24-EBL at a concentration of 40 and 60 μg L-1 inserted in substrate of ST mixture had a longer root length and more roots per cutting compared to other substrates. It is concluded that 24-EBL induces root formation in cuttings of blueberry plants in ST substrate.

Palabras llave : blueberry; brassinosteroid; cuttings; substrate.

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