Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Efficacy and Differential Physiological-Biochemical Response of Biostimulants in Green Beans Subjected to Moderate and Severe Water Stress

Karla Ivonne Hernández-Figueroa
,
Esteban Sánchez
* ORCID logo ,
Carlos Abel Ramírez-Estrada
ORCID logo ,
Ezequiel Muñoz-Márquez
,
Damaris L Ojeda-Barrios
ORCID logo ,
Sandra Pérez-Álvarez
Version 1 : Received: 10 July 2023 / Approved: 11 July 2023 / Online: 12 July 2023 (09:25:10 CEST)

A peer-reviewed article of this Preprint also exists.

Hernández-Figueroa, K.I.; Sánchez, E.; Ramírez-Estrada, C.A.; Anchondo-Páez, J.C.; Ojeda-Barrios, D.L.; Pérez-Álvarez, S. Efficacy and Differential Physiological–Biochemical Response of Biostimulants in Green Beans Subjected to Moderate and Severe Water Stress. Crops 2024, 4, 27–42, doi:10.3390/crops4010003. Hernández-Figueroa, K.I.; Sánchez, E.; Ramírez-Estrada, C.A.; Anchondo-Páez, J.C.; Ojeda-Barrios, D.L.; Pérez-Álvarez, S. Efficacy and Differential Physiological–Biochemical Response of Biostimulants in Green Beans Subjected to Moderate and Severe Water Stress. Crops 2024, 4, 27–42, doi:10.3390/crops4010003.

Abstract

Water stress is one of the main factors affecting the development of agricultural crops. An inno-vative alternative to improve tolerance to water stress is the application of biostimulants. In the present study, the efficacy and physiological and biochemical responses of different biostimulants were evaluated in beans under moderate and severe stress. The treatments consisted of three types of irrigation: FC100, without water stress, FC75, irrigation reduced by 25% (moderate water stress) and FC50, irrigation reduced by 50% (severe water stress). In the treatments with water deficit, foliar biostimulants were applied: zinc oxide nanoparticles plus chitosan, Codasil®, Osmoplant®, Stimplex® and salicylic acid. Foliar application of ZnO + chitosan nanoparticles benefited biomass accumulation and yield under moderate water stress (FC75) and Codasil® and Osmoplant® under severe water stress (FC50). Proline, free sugars and gas exchange were higher under the application of ZnO + chitosan nanoparticles under moderate water stress and under Codasil® and Osmoplant® under severe water stress. Depending on the severity of water stress, ZnO + chitosan nanoparticles, Codasil® and Osmoplant® are viable products to increase tolerance in green bean cv. Strike plants.

Keywords

Phaseolus vulgaris L.; nanofertilizers; bioregulators; nanotechnology

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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