engleski

Nitrate dynamics in cabbage leaves during short floods due to climate change

Because of its negative impact on all aspects of the environment, society, and the economy, climate change is no longer seen as a global threat of the 21st century, but as such. Agricultural production is classified as one of the activities most likely to be affected by climate change. According to the predictions, extreme climate events will occur more frequently, which will certainly have a detrimental effect on the growth and development of crops and, consequently, on food production. One of the extreme climate events predicted for Croatia is heavy rainfall in spring, followed by floods. Therefore, the aim of this work was to determine the effects of short-term flooding on the nitrate content in cabbage leaves in the period after planting as part of the project "Potential of the Rhizosphere Microbiome in the Adaptation of Agriculture to Climate Change (PERSPIRE)" funded by the EU Regional Development Fund. The experiment was conducted with cabbage (Brassica oleracea var. capitata f. alba) under controlled conditions (16 hours day/8 hours night ; 25 ˚C day/20 ˚C night ; 60-70% relative humidity). The total duration of the experiment was 57 days (sowing to the end of the experiment). Plants were flooded twice for short periods (duration 72 hours, 10 days recovery time between floods), and leaves were sampled five times at different stages of development. There were also control plants with optimal irrigation. The results showed no significant differences in leaf nitrate content between flooded and non-flooded plants, except at the end of the first recovery period after the first flooding. The nitrate content in the leaves decreases with time. It can be assumed that the nitrate content in cabbage is not so affected by short-term flooding.

Brassica oleracea var. capitata f. alba ; excessive water ; food ; vegetable

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