DOI: 10.31220/agriRxiv.2021.00043

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  Abstract: Abstract Background: Salicylic acid participates in the regulation of the plant's response to a series of environmental stresses such as extreme temperatures, salinity, and oxidative condition of potato production, so it is necessary to determine a safe application dosage for potato in field conditions. Methods: The purpose of the research was to evaluate the effect of increasing doses of acetylsalicylic acid on the agronomic traits of two potato cultivars in Lima, Peru. In a field experiment, an RCBD with 3 replications was used under a split-plot arrangement in which five doses (0.0, 0.2, 0.4, 0.6, and 0.8 mM) of acetylsalicylic acid plus control with Biol (biostimulant) were assigned to plots, and two potato cultivars ('Perricholi' and 'única') were assigned to subplots. The average temperatures were between 15 and 21°C, the air relative humidity between 61 and 73% and the soil was loam textural class, free of salts. Results: Statistical differences ( p <0.05) were found between the two potato cultivars for most of the characters studied. The effects of doses of acetylsalicylic acid showed statistical differences for sprouting, vegetative vigor, and percentage of flowering; likewise, significant interactions ( p <0.05) were shown between potato cultivars and dose of acetylsalicylic acid for the number of stems per plant and percentage of flowering, which would indicate a specific effect for the dose of acetylsalicylic acid in each potato cultivar. Conclusion: No dose of the product significantly affected the potato yield in two potato cultivars however, the effect of the dosage of acetylsalicylic acid improved the performance of the crop in terms of sprouting in the field, vegetative vigor, a greater number of stems per plant as well as stimulation of flowering, with respect to control.

  Key words: acetylsalicylic acid; potato cultivars; dose; plant; doses; flowerin

  Submit time: 1 January 2021

  Copyright: The copyright holder for this preprint is the author/funder, who has granted agriXiv a license to display the preprint in perpetuity.
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