Genetika 2018 Volume 50, Issue 3, Pages: 1023-1033
https://doi.org/10.2298/GENSR1803023M
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Antioxidant status of the different sweet maize hybrids under herbicide and foliar fertilizer application
Mesarović Jelena (Maize Research Institute Zemun Polje, Belgrade)
Srdić Jelena (Maize Research Institute Zemun Polje, Belgrade)
Mladenović-Drinić Snežana (Maize Research Institute Zemun Polje, Belgrade)
Dragičević Vesna (Maize Research Institute Zemun Polje, Belgrade)
Simić Milena (Maize Research Institute Zemun Polje, Belgrade)
Brankov Milan (Maize Research Institute Zemun Polje, Belgrade)
Milojković-Opsenica Dušanka (Faculty of Chemistry, Belgrade)
The chemical method of weed control is an indispensable step in cropping
practices of sweet maize. Application of the herbicides can induce the
abiotic stress which affects the non-enzymatic antioxidants in the crops,
especially on the sensitive one, like sweet maize is. Antioxidant profile,
through the measurement of the soluble phenolic, carotenoids, phytic acid
and glutathione concentration, in the grain of the three sweet maize hybrids
after application of herbicides, foliar fertilizer, as well as their
combinations, in field experiment, conducted over a two-year period, was
determined. The content of tested antioxidant parameters was dependent on
hybrids, growing season, as well as of the applied treatment. Sulfonylurea
herbicides significantly increased the antioxidant status of sweet maize
fresh grain, compared to the herbicide from triketone group, without
affecting the fresh grain yield. Combination of herbicide plus foliar
fertilizer expressed a various impact on antioxidant profile of the maize
grain. Furthermore, significant correlations (positive and negative) between
fresh grain yield and analyzed antioxidants in grain of three sweet maize
hybrids were noticed.
Keywords: non-enzymatic antioxidant, Zea mays L. saccharata, abiotic stress, nicosulfuron, mesotrione
Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR31068, Grant no. TR31037 and Grant no. OI172017