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Revista mexicana de ciencias agrícolas

versão impressa ISSN 2007-0934


VILLEGAS-ESPINOZA, Jorge Arnoldo et al. Biostimulant Liplant®: its effect on Solanum lycopersicum (L.) grown on slightly saline soils. Rev. Mex. Cienc. Agríc [online]. 2018, vol.9, n.spe20, pp.4137-4147. ISSN 2007-0934.

The application of humic substances, stimulates biochemical, physiological mechanisms, investigations have been carried out that reveal the properties and functions of these substances. The objective of this investigation was to evaluate the effect of different concentrations of Liplant® applied foliarly (1/10, 1/20, 1/30 v/v and a control-distilled water-) in the growth, production and quality of fruit of tomato, and economic feasibility. Carried out under field conditions and using a design of complete blocks at random, 5 days after the transplant was measured height, diameter of stem; 65 days later, we considered fresh and dry fruit weight, polar and equatorial diameter, number of fruits, yield, titratable acidity, total soluble solids, maturity index, vitamin C content, pH of the fruit juice, moisture loss and firmness of fruits. The economic feasibility was made considering yield, value and cost of production, net profit, cost and the benefit/cost ratio. Analysis of variance and multiple comparisons of means were made (Tukey HSD p= 0.05). The juice pH did not show significant differences between Liplant® concentrations. Height, stem diameter, number of fruits, polar and equatorial diameter, fresh and dry fruit weight, yield, fruit firmness, total soluble solids, vitamin C and fruit moisture loss showed higher values when the plants were sprayed with the dilution of Liplant® 1/30 (v/v). The dilution of 1/30 (v/v) of Liplant® generated a benefit of $36 753.9 thousand Cuban pesos per hectare, a benefit/cost of $3.6 Cuban pesos and a cost per weight of $0.21.

Palavras-chave : analysis of plant growth; fruit quality; yield; salinity in the soil.

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