Abstract
Selenium (Se) is a micronutrient that is insufficiently present in the human diet. Increasing its content in food through appropriately matched agricultural practices may contribute to reducing Se deficit in humans. The study covered the effect of grain, soil, as well as grain and soil fertilization with selenium combined with foliar application at different stages of spring wheat (Triticum aestivum L.) development. The fertilization involved the application of sodium selenate. Fertilization with selenium had no significant effect on the grain yield. Grain application, soil application, and grain and soil application combined with foliar application at particular development stages of the plant significantly contributed to an increase in selenium content in grain. The study showed that the accumulation of selenium in spring wheat depends on the type of fertilization and term of its application. The best method of introducing selenium into the plant is grain and soil fertilization combined with foliar application at the stage of tillering and stem elongation (G + S + F1-2) for which the highest selenium content was obtained (0.696 mg·kg−1 Se). The applied biofortification methods contributed to the increase in selenium in the grain of spring wheat.
Highlights
Selenium (Se) is an element that has gained interest of the scientific world in recent years
This paper presents yield results for spring wheat from two years
High selenium content was found in the case of grain and soil application combined with foliar application at the stage of stem elongation (G + S + F2), where 0.481 ± 0.169 mg·kg−1 Se was obtained
Summary
Selenium (Se) is an element that has gained interest of the scientific world in recent years It is a microelement necessary for the life of humans and animals due to the functions that it fulfils in the organism. The course of physiological processes, is only optimal when the demand for the element is met within a certain range Both selenium deficit and excess can lead to numerous disorders [1]. Its deficit has an unfavorable effect on the health of the animal and human organism [11,12,13]. Even a small deficiency of Se has negative effects on human health, such as increasing the risk of cancer, infertility in men, and neurological diseases [17,18,19,20,21]
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