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Antioxidant capacity of oilseed rape (Brassica napus) in different soil types

This work considers the results obtained by testing the parameters of antioxidant status in leaves and roots of oilseed rape at different growth stages (phase I: formation of leaf rosettes and preparing for winter hibernation, phase II: after the winter hibernation. | Turkish Journal of Agriculture and Forestry http://journals.tubitak.gov.tr/agriculture/ Research Article Turk J Agric For (2017) 41: 463-471 © TÜBİTAK doi:10.3906/tar-1701-94 Antioxidant capacity of oilseed rape (Brassica napus) in different soil types Dusica JOVIČIĆ*, Jovica VASIN, Zorica NIKOLIĆ, Gordana PETROVIĆ, Gordana TAMNIDŽIĆ, Maja IGNJATOV, Dragana MILOŠEVIĆ Institute of Field and Vegetable Crops, Novi Sad, Serbia Received: 20.01.2017 Accepted/Published Online: 15.09.2017 Final Version: 18.12.2017 Abstract: This work considers the results obtained by testing the parameters of antioxidant status in leaves and roots of oilseed rape at different growth stages (phase I: formation of leaf rosettes and preparing for winter hibernation; phase II: after the winter hibernation; phase III: flowering) grown in semicontrolled field conditions on different soil types. The experiment was conducted on four oilseed rape genotypes (Banacanka, Jasna, Kata, and Zlatna) in semicontrolled conditions in containers with three soil types: chernozem, solonetz, and solonchak. The germination failed on solonchak due to the excessive amount of salt, but results were obtained for plant material on chernozem and solonetz. The following parameters were examined: superoxide dismutase (SOD) enzyme activity, glutathione peroxidase (GPx) activity, lipid peroxidation (LP) intensity, glutathione (GSH) content, and total antioxidant capacity (by ferric reducing antioxidant power, FRAP method). The activity of all the tested parameters of antioxidant status in all genotypes, both in leaves and roots, was higher in plants grown on solonetz soil compared to plants grown on chernozem. Furthermore, the activity of all the tested parameters on both soil types was highest in the second phase of testing, the stage after the winter hibernation, because the plants were exposed to low temperatures in addition to salt stress. The vital thing to note is that GPx activity is important for the .