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Advisor(s)
Abstract(s)
Biostimulants are an interesting strategy to increase crop tolerance to water deficits, and there is an extensive
bibliography on them. However, most of them need to be treated continuously to increase protection throughout the growth cycle.
In this context, we chose menadione sodium bisulfite, whose protective effect against water deficit has been previously demonstrated
but only for a short period of time. Nanoencapsulation seems to be an interesting way to improve the properties of biostimulants.
Our results show that menadione sodium bisulfite (MSB) encapsulated in chitosan/tripolyphosphate nanoparticles can increase the
system’s tolerance against an imposed water deficit and delay the need for retreatment by at least 1 week, accelerating plant recovery
after rehydration. This highlights the positive properties of nanoencapsulation and shows how a simple encapsulation process can
significantly improve the biostimulant protective properties, opening up new possibilities to be explored under field conditions to
cope with water-deficit stress.
Description
Keywords
Menadione sodium bisulfite Nanoparticles Water deficit Biostimulants Nanoencapsulation . Centro em Agricultura Sustentável e Tecnologia Alimentar Faculdade de Ciências da Vida
Citation
Jiménez-Arias, D., Bonardd, S., Morales-Sierra, S., Carvalho, M. A. Almeida Pinheiro de , & Díaz Díaz, D. (2023). Chitosan-Enclosed Menadione Sodium Bisulfite as an Environmentally Friendly Alternative to Enhance Biostimulant Properties against Drought. Journal of Agricultural and Food Chemistry, 71(7), 3192-3200.
Publisher
American Chemical Society