Resumen

MORALES-MARTINEZ, Moisés; MOSCOSO-RAMIREZ, Pedro Antonio; CASTELAN-ESTRADA, Mepivoseth  y  CONTRERAS-OLIVA, Adriana. Effect of nitrates alone or with paclobutrazol on flowering induction and production in mango cv. Tommy Atkins. Biotecnia [online]. 2020, vol.22, n.2, pp.20-27.  Epub 07-Ago-2020. ISSN 1665-1456.  https://doi.org/10.18633/biotecnia.v22i2.1242.

The flowering induction in mango (Mangifera indica L.) orchards is an agricultural practice carried out on tropical regions to obtain fruits out- of-season looking to reach better sale prices. The objective of this research was to evaluate the effect of potassium (PN), ammonium nitrate (AN) and paclobutrazol (PBZ) on flowering induction and fruit production in mango cv. Tommy Atkins. The experiment included fourteen treatments with 2, 4, and 6 % PN, and 2, 3 and 4 % AN applied in combination with PBZ (1 g of a.i. m-1 of canopy diameter), paclobutrazol alone (1 g of a.i. m-1 of canopy diameter), and a control (water), which were arranged in a completely randomized design with three replicates. Results show that floral induction and fruit production were improved: PBZ followed by foliar application PN 2 %, 4 % or 6 % induced flowering 16 days after treatments. Likewise, the major number of emerged panicles were obtained with PBZ + PN 6 %. An increase on fruit weight and size reduction was observed at harvest. PBZ followed by foliar application of nitrates induced flowering and enhanced the number developed panicles in mango cv. Tommy Atkins.

Palabras llave : potassium nitrate; ammonium nitrate; floral induction; fruit quality.

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