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  • Title: Selenium Enhances Growth, Phenolic Compounds, Antioxidant Capacity in Brassica Oleracea Var. Italica.
    Author: Saeedi M, Soltani F, Babalar M, Wiesner-Reinhold M, Baldermann S, Mastinu A.
    Journal: Chem Biodivers; 2024 Oct 07; ():e202401731. PubMed ID: 39373226.
    Abstract:
    Selenium is a micronutrient element that is beneficial for the growth and development of plants. It has antioxidant, anticancer, and antiviral properties that are essential for human and animal health. Low-consumption mineral elements such as selenium can be included in the diet from various sources. To investigate the growth and phytochemical attributes of a broccoli cultivar "Heracklion", an experiment with five levels of selenium concentration (0, 5, 10, 15, 20 mg/L sodium selenate) was carried out in a randomized complete block design with 3 replications in the field condition. With increasing the concentration of sodium selenate in the foliar application, the accumulation of sodium selenate in broccoli increased and the highest amount (1.47 mg/kg dry weight) was measured at 20 mg/L of sodium selenate. The highest amount of photosynthetic pigments in leaves was recorded at 15 mg/L of sodium selenate. In the case of glucosinolates, with increasing selenium concentration up to 20 mg/L concentration, glucoraphanin, 4-methoxy glucobrassicin, and aliphatic glucosinolates increased in leaves. It could be demonstrated that foliar application of selenium at 10 mg/L led to an improvement of secondary metabolites, especially glucoraphanin, both in leaves and florets, and could also have a positive effect on human nutrition.
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