Macro and Trace Elements in Barley (Hordeum vulgare L.) Breeds in Latvia Depending on Variety, Environment, and Agricultural Practice

• Published in: Proceedings of the Latvian Academy of Sciences. Section B, Natural Sciences Natural Sciences, 2018-06, Vol.72 (2), p.54-64
• Main Authors: Jākobsone, Ida, Zute, Sanita, Bleidere, Māra, Kantāne, Ināra, Bartkevičs, Vadims
• Format: Article
• Language: English
• Subjects: Absorption; Absorption spectroscopy; Agricultural practices; Aluminum; Atomic absorption analysis; Atomic absorption spectroscopy; Barley; Cadmium; Calcium; Chromium; conventional farming; Copper; Genotypes; Grain; Hordeum vulgare; Iron; Lead; Magnesium; Manganese; Nickel; nutritional aspects; organic agriculture; risk assessment; Scientific imaging; Spectral analysis; Spectrometry; statistical indicators; Trace elements; Zinc
• ISSN: 1407-009X; 2255-890X; 1407-009X
• DOI: 10.2478/prolas-2018-0009

The aim of the study was to determine concentrations of 13 macro and trace elements in different barley genotypes depending on the year of growth (2011, 2012, and 2013) and agricultural practice (conventional/organic). Cd, Pb, Cr, Ni, and Al concentrations were determined by electrothermal atomic absorption spectrometry and K, Na, Zn, Cu, Ca, Mg, Mn, and Fe concentrations by flame atomic absorption spectrometry. Statistically different concentrations of Cr, Cu, and Zn occurred among genotypes; for Ca, Mn, and Fe concentrations between barley grains, grown conventionally and organically; for Cr and Ni concentrations between hulled and hull-less grain and for Cd, Cr, Ni, Cu, Zn, Al, K, and Na concentrations among the study years. Concentrations of potentially hazardous elements were low (Cd < 0.005–0.027, Pb 0.013–0.066, Cr 0.111–0.327, Ni 0.161–1.264, Cu 2.8–4.7 and Al 1.62–6.09 mg·kg ). Barley products can provide necessary macro and trace elements, especially of Mn, Mg, Fe, and Zn (7.8–16.1; 1024–1249; 29.2–52.9, and 20.5–33.7 mg·kg , respectively).