Book with abstracts from the COST Action 0905 meeting in ... - UMB

NECESSITY OF BIOFORTIFICATION WITH SELENIUM OF
PLANTS USED AS FODDER AND FOOD IN ROMANIA
Lacatusu Radu 1,2 , Anca-Rovena Lacatusu 1 , Mihaela Monica Stanciu-Burileanu 1 , Mihaela
Lungu 1
1
National Research & Development Institute for Soil Science, Agrochemistry and
Environment Protection Bucharest, Romania;
2 “Al. Ioan. Cuza” University Iassy, Romania
Keywords: selenite; alfalfa; wheat; biofortification
Selenium deficency in animals, but with major implication in humans, required to carry out
experiments regarding Se enrichment of some fodder and food sourses. The experiments
conducted into green house were followed the selenium enrichment of alfalfa, by the
administration of selenium as potassium selenite solution (K 2 SeO 3 ) into soil, on seed and
on plant. Administration of selenium in soil, with doses from 1 to 10 mg / kg has
contributed to increase the Se content of alfalfa plants up to 6.5 times. Foliar fertilization
with solutions containing 4 mg Se in a volume of 100 ml water, increased the selenium
content of the plant up to 14 times, and the application of selenium on seed by spraying it
with solutions that contained between 1 and 5 mg Se / l helped to increase the amount of
selenium in the plant up to 11 times. The experiments carried out on the field have
revealed a tendency to increase the accumulation of selenium into the wheat grain, with up
to 10% as a result of spraying the plants on 9-10 state according to Feeks scale with a
solution containing 1 g sodium selenite (Na 2 SeO 3 ) per hectare. The experimental data
obtained show the necessity and possibility of bio-fortification with Se of the plants used
as fodder and vegetable origin foods.