Open Access

ARTICLE

Photosynthetic Gas Exchange and Nitrogen Assimilation in Green Bean Plants Supplied with Two Sources of Silicon

Julio C. Anchondo-Páez, Esteban Sánchez^*, Carlos A. Ramírez-Estrada, Alondra Salcido-Martínez, Erick H. Ochoa-Chaparro

Department of Plant Physiology, Centro de Investigación en Alimentación y Desarrollo, Ciudad Delicias, 33089, México

* Corresponding Author: Esteban Sánchez. Email:

(This article belongs to the Special Issue: Biofertilizers and Nano Fertilizers as Tools to Increase Agriculture Resilience and Sustainability)

Phyton-International Journal of Experimental Botany 2024, 93(5), 963-980. https://doi.org/10.32604/phyton.2024.048742

Received 17 December 2023; Accepted 08 April 2024; Issue published 28 May 2024

Abstract

Beans contain a wide range of vitamins, proteins, calcium, and zinc which make them an important food source for many countries. To meet the demand for bean production worldwide, large amounts of fertilizers and pesticides are used. However, the cost of production and environmental impact increases. To produce food sustainably, the use of beneficial nutrients such as silicon as a biostimulant has been proposed. However, information about the effect of different sources of silicon on the metabolism of bean plants is scarce. Bean plants cv. Strike were grown in pots for 60 days and the effect of foliar application of silicon nanoparticles and the silicon-based biostimulant Codasil® at 4 concentrations (0, 1, 2, and 4 mM) on total biomass, yield, photosynthetic pigment concentration, photosynthetic activity, stomatal conductance, transpiration rate, chlorophyll fluorescence, and nitrogen assimilation were evaluated. The results obtained showed that the supply of silicon at a dose of 1 mM functioned as a biostimulant, favoring gas exchange and nitrogen assimilation within the plant, which stimulated growth and yield. The results of this research work allowed a better comprehension of the effects of silicon application through silicon nanoparticles and the biostimulant Codasil® on the physiology of green bean plants.

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