engleski

The role of plant hormones in abiotic stress tolerance of selected Brassicaceae

Global warming and climate changes have enormous negative impact on crop production in affected areas. Increased soil salinity and drought are abiotic stresses particularly pronounced in Mediterranean, semi-arid, and arid climates. The abiotic stress tolerance of Brassica crops correlated with certain changes in plant hormones such as salicylic acid (SA), abscisic acid (ABA), auxins (IAA), cytokinins (CS) and brassinosteroids (BR). The effect of salinity stress and drought was evaluated on selected Brassica crops: Chinese cabbage (Brassica rapa ssp. pekinensis), white cabbage (B. oleracea var. capitata forma alba) and kale (B. oleracea var. acephala) with particular focus on the role of plant hormones in abiotic stress tolerance. Based on the physiological and biochemical markers the Chinese cabbage exhibited the lowest tolerance, followed by the white cabbage, while the kale appeared to be the most tolerant to drought and salinity stress in aplied experimental conditions.

Brassicaceae ; drought ; salinity stress ; tolerance

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