Resumen

GARCIA-TERRAZAS, Mariana Isabel et al. Supplementary foliar application of Boron, Manganese and Molybdenum as inducers of growth, yield and phytochemicals concentration in tomato crops. Biotecnia [online]. 2024, vol.26, e2052.  Epub 08-Nov-2024. ISSN 1665-1456.  https://doi.org/10.18633/biotecnia.v26.2052.

The objective of the study was to evaluate the effect of supplementary foliar application of liquid commercial products of B+3 (Basfoliar® with 13 % B), Mn+2 (CRECITEC Mn® with 5 % Mn) and Mo+6 (MOLIBION® with 9.2 % Mo) on tomato yield and phytochemicals. The treatments were: B+3 (1 mL L-1), Mn+2 (2 mL L-1), Mo+6 (1.5 mL L-1), their interactions (B+3+Mn+2, B+3+Mo+6, Mn+2+Mo+6, and B+3+Mn+2+Mo+6) and a control, applied every 15 days after transplantation. A randomized complete block design with eight treatments and 10 repetitions was used. The application of the microelements did not modify the yield. For plant height all treatments exceeded the control except for B+3 and Mn+2. The Mo+6 treatment increased the dry biomass. In fruit, Mn increased proteins, B+3+Mo+6 and Mn+2+Mo+6 decreased phenols, B+3, Mo+2 and Mn+2+Mo+6 increased flavonoids, and B+3+Mn+2 and Mn+2+Mo+6 decreased glutathione. B+3+Mo+6 increased lycopene, but decreased β-carotene. Regarding lipophilic antioxidant capacity of the fruit, it was increased by B+3+Mn+2 and decreased by B+3+Mo+6. This study shows that the supplementary application of these microelements is an alternative to increase phytochemicals in crops, without affecting yields.

Palabras llave : nutrition; micronutrients; yield, growth; phytochemicals.

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