Naslov
Genotypic variations in cadmium concentration of winter wheat grain - an opportunity for healthier bread

Autori
Rebekić, Andrijana ; Marić, Sonja ; Petrović, Sonja ; Lončarić, Zdenko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstract of European Plant Genetic Resources Conference "Pre-breeding – fishing in the gene pool" / Oriz, Rodomiro - Alnarp : NordGen, 2013, 29-29

Skup
European Plant Genetic Resources Conference "Pre- breeding – fishing in the gene pool"

Mjesto i datum
Alnarp, Švedska, 10.06.2013. - 13.06.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wheat ; cadmium ; accumulation

Sažetak
A concentration of essential and detrimental trace elements in staple food crops is of great value for healthy human diet. The accumulation and distribution of trace elements in plants is affected by factors under genetic control (Grant et al., 2007.). Cadmium (Cd) is a detrimental trace element, a heavy metal with no biological function and highly toxic to plants, animals and humans. Therefore it is desirable to reduce a concentration of Cd in crops used for human consumption. One way for achieving reduction is through plant breeding. Winter bread wheat, as a staple food, is also one of the Cd sources in the human diet. Therefore, genotypic variation in uptake and Cd concentration in grain among cultivars is crucial for selection of low Cd concentration in winter wheat grain. A screening of genotypic variations in Cd concentration of winter wheat grain was conducted as a pot trial with 52 winter wheat cultivars. Cultivars originated from seven countries (Croatia, Hungary, Italy, Germany, Austria, France and Russia), registered in a period from 1936 to 2008. Cultivars from Croatia (34) originated from three different breeding centers. Trial consisted of two treatments regarding soil contamination: (1) non-contaminated soil and (2) soil contaminated with 20 mg Cd kg-1 soil. Sample collection was conducted in flowering time (flag leaf) and in full maturity (seed). The results showed great differences in Cd concentrations of examined cultivars between and within countries of origin. A concentration of Cd in grain on non-contaminated soil ranged from 0.010 to 0.114 mg kg-1. On contaminated soil cultivars also showed a significant difference, Cd concentration in grain ranged from 0.071 to 6.15 mg kg-1. A high positive correlation existed between Cd concentration in grain and in flag leaf on contaminated soil. Results indicated that it is possible to lower the Cd content of winter wheat grain through cultivar selection and breeding. Several cultivars with different pedigree, origin and year of recognition can be marked as low Cd accumulators and use for selection of cultivars with low cadmium accumulation.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA