Articles
Impact of foliar application of urea and nano-urea over stilbene synthesis during Monastrell ripening
Article number
1387_17
Pages
127 – 134
Language
English
Abstract
Nitrogen is an important nutrient both for grapevine growth and for berry composition.
Urea is used as a fertilizer and source of nitrogen, since the use of conventional fertilizers can cause environmental problems and can be directly applied in solution to the leaves of the vines.
However, in order to reduce the concentration of urea and increase its effectiveness, the use of nanoparticles on which surface the fertilizer is deposited could be an alternative to slow down the release of nitrogen and avoid its losses.
On the other hand, stilbenes are known as substances with a wide biological activity, among them the modulation of cell proliferation and redox status, swelling suppressor and antioxidant properties.
These characteristics can protect against cardiovascular and neurodegenerative diseases and cancer.
So from this point of view, it would be interesting to increase its concentration in food, including grapes and wines.
This research studied the effect of foliar treatments of urea and urea-doped nanoparticles (nano-urea) on the synthesis of stilbenes in Monastrell vineyards during the ripening period (2020). The results showed that there were fluctuations of the stilbene concentrations in control and in both treatments during this period.
However, we could observe an increase in total stilbenes and individual components content when treatments were applied.
With respect to the treatments, when the urea was applied conventionally, the increases were more evident than when it was in the form of nanoparticles.
Even so, when nano-urea was applied, the results were superior to those obtained by the control grapes.
Urea is used as a fertilizer and source of nitrogen, since the use of conventional fertilizers can cause environmental problems and can be directly applied in solution to the leaves of the vines.
However, in order to reduce the concentration of urea and increase its effectiveness, the use of nanoparticles on which surface the fertilizer is deposited could be an alternative to slow down the release of nitrogen and avoid its losses.
On the other hand, stilbenes are known as substances with a wide biological activity, among them the modulation of cell proliferation and redox status, swelling suppressor and antioxidant properties.
These characteristics can protect against cardiovascular and neurodegenerative diseases and cancer.
So from this point of view, it would be interesting to increase its concentration in food, including grapes and wines.
This research studied the effect of foliar treatments of urea and urea-doped nanoparticles (nano-urea) on the synthesis of stilbenes in Monastrell vineyards during the ripening period (2020). The results showed that there were fluctuations of the stilbene concentrations in control and in both treatments during this period.
However, we could observe an increase in total stilbenes and individual components content when treatments were applied.
With respect to the treatments, when the urea was applied conventionally, the increases were more evident than when it was in the form of nanoparticles.
Even so, when nano-urea was applied, the results were superior to those obtained by the control grapes.
Publication
Authors
M.J. Giménez-Bañón, J.D. Moreno-Olivares, D.F. Paladines-Quezada, B. Parra-Torrejón, G.B. Ramírez-Rodríguez, J.M. Delgado-López, J.A. Bleda-Sánchez, R. Gil-Muñoz
Keywords
nanotechnology, stilbenes, sustainable agriculture, fertilization, ripening
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