The influence of herbicides on changes of the phytic and the inorganic phosphorus during starting growth of maize inbred lines | Uticaj herbicida na promene fitinskog i neorganskog fosfora tokom početnih faza rasta linija kukuruza
2010
Dragičević, V., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Simić, M., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Sredojević, S., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia)
The specific sowing structure of maize seed crops requires special attention to weed management. The maize inbred lines are susceptible to a range of stress factors, so as the herbicide application could introduce temporary or permanent stress, dependently on genotype susceptibility and agro-meteorological conditions. The aim of experiment was to investigate the influence of post-emergence herbicides on content of the phytic and inorganic phosphorus 48 hours after herbicide application (4-6 leaves phase) and then 21 days after application, as well as on the grain yield of 10 ZP maize inbreds. The difference in phytic P content after 21 days was followed by yield alterations in the majority of inbreds. Decrease of the phytic P influenced by herbicides, in relation to control, 48 hours and particularly 21 days after application, could be tied to phytate positive impact to stress tolerance, owing to its antioxidative activity; so as, at the most of inbreds was observed permanent stress, with no significant influence on grain yield. Meanwhile, during the period of 21 days after herbicide application, the inorganic P content correlated with phytic P content, without significant alterations of grain yield.
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