Resumen

LOPEZ-MARTINEZ, Guadalupe et al. Effect of hydroxyapatite nanoparticles on the development and germination of Cucumis Sativus L. Ecosistemas y recur. agropecuarios [online]. 2023, vol.10, n.spe3, e3608.  Epub 26-Ago-2024. ISSN 2007-901X.  https://doi.org/10.19136/era.a10niii.3608.

Nanoparticles of hydroxyapatite (nHAp) have the potentialto stimulate plant growth and act as a nanofertilizer. The objective of this bioassay was to evaluate the effect of nHAp on seed germination and some physiological aspects of cucumber (Cucumis sativus L) seedlings. The treatments consisted of increasing doses of nHAp (0, 25, 50, 100, 100, 200, 500, 1000 and 2000 mg L-1). The use of nHAp caused significant effects on plumule length and dry biomass. Radicle length, germination, and vigor were favored at 25 mg L-1, while at 200 mg L-1 , an inhibition was detected. The inhibitory effect is attributed to the electrostatic attraction between nanoparticles, since at concentrations higher than 200 mg L-1 they agglomerated to form microparticles, which limits their absorption by the plant through the barriers of the cell walls and membranes.

Palabras llave : Agronanotechnology; cucurbits; nanofertilizers; sedes physiology; phytotoxicity.

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