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A thesis of the PhD program in Advanced Techniques in Research and Agricultural and Food Development (TAIDA) of the Universidad Politécnica de Cartagena (UPCT) has shown that the use of biostimulants improves the performance of tomato plants under high temperature conditions.
The research of the new Dr. Virginia Hernández Pérez has also concluded that these techniques also increase, in certain cases, the bioactive compounds of the tomato with properties beneficial to health.
Directed by the researchers María del Pilar Flores Fernández-Villamil and María del Pilar Hellín García, from the department of Sustainability and Quality of Fruit and Vegetable Products of the IMIDA to which the author also belongs, the thesis also proposes the optimization of the management of nitrogen nutrition to improve The nutritional quality of the fruit and to compensate the negative effect on the performance of the use of shading mesh to mitigate the thermal stress.
The thermal stress of the tomato plants is recurrent in the cultivations of the Region of Murcia, most of them under greenhouse conditions, and frequently presents simultaneously with other abiotic conditions, such as the scarcity of water resources and the salinity of soil and water.
"The main objective of this thesis was to know the influence of the high temperature on the yield and the quality of tomato, focusing on accumulation of metabolites related to the organoleptic and nutritional quality of the fruit", explains the author of the thesis, in which Tested different agronomic strategies to minimize the negative effects of thermal stress, such as the management of mineral nutrition, the use of shading nets and the application of biostimulants.
"Tomato plants have a great capacity to adapt to conditions of thermal stress, and may even restore the concentrations of the metabolites of interest after long periods of exposure to high temperature," concludes Virginia Hernandez.
Source: UPCT
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