In order to evaluate the antioxidant activity of wheat in salinity stress conditions, an experiment with 27 wheat
genotypes grown on two types of soil was conducted: solonetz (increased salinity) and chernozem (control),
during two vegetation seasons (2015/2016 and 2016/2017). Analysis of DPPH radical scavenging activity and
phenolic content (PC) were performed in different phenophases of wheat (tillering, stem elongation and
heading). Genotypes showed significantly higher DPPH radical scavenging activity (9.82 mg trolox equivalents
(TE) per mg of dry matter (d.m.)) and PC (8.15 mg gallic acid equivalents (GAE) per mg d.m.) under salinity
stress conditions compared to values obtained on control (8.52 mg TE mg-1 d.m. and 7.13 mg GAE mg-1 d.m.,
respectively). All analyzed factors (genotype, soil type and year) had the highly significant influence on
phenotypic variation of grain yield. Salinity stress reduced grain yield by 30%, whereas drought stress in
2016/2017 vegetation season reduced grain yield by 20%. Highly significant and positive correlations are
present between grain yield and parameters of antioxidant activity in all growth stages of wheat and both soil
conditions. Therefore, it could be possible to select salinity tolerant genotypes in early growth stages. DPPH
scavenging activity and total phenolic content are in highly significant and positive correlation in all growth
stages, which indicates that antioxidant activity is highly derived by phenolics.
Ministry of Education, Science and Technology Development of Republic of Serbia
31092
Ministry of Education, Science and Technology Development of Republic of Serbia
31092
Birincil Dil | İngilizce |
---|---|
Konular | Bitki Bilimi |
Bölüm | Articles |
Yazarlar | |
Proje Numarası | 31092 |
Yayımlanma Tarihi | 20 Haziran 2022 |
Yayımlandığı Sayı | Yıl 2022 Cilt: 27 Sayı: 1 |
Turkish Journal of Field Crops is published by the Society of Field Crops Science and issued twice a year.
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Ege University, Faculty of Agriculture,Department of Field Crops
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