Effect of environment pH on selenium concentration and translocation in the leaved vegetables
2005
Hawrylak, B. | Szymanska, M.,Akademia Rolnicza, Lublin (Poland). Katedra Fizjologii Roslin
Water culture studies conducted to examine the effect of medium pH (pH 4.5, 6.2, 7.5) and selenium form on selenium translocation and concentration in a leaves and roots of the edible spinach (Spinacia oleracea L.) and lettuce (Lactuca sativa var. capitata L.). Selenium was added to the culture medium in its selenate IV (Na2SeO3 x 5 H2O) and selenate VI (Na2SeO4) forms. Regardless of the selenium form, increasing selenium supplementation and medium pH increased the selenium concentration in roots and shoots. The selenium translocation from roots to shoots depended more uppon available selenium form rather then medium pH and plant species. Selenium in the selenate IV form was accumulates mainly in roots while a lot of selenate VI was transfer to shoots. For the sake of relatively high efficiency of translocation to shoots among examinated mineral selenium forms, selenate VI in the differentiated conditions of medium pH could have a potentially greatest application in the enrich of plant biomass in this element
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