CARACTERIZAÇÃO FISIOLÓGICA E BIOQUÍMICA DE ARTEMISIA (Artemisia annua L.) SUBMETIDA A ESTRESSE SALINO

Abstract

The goal of this study was to identify through physiological and biochemical analyzes changes in artemisia plants under salt stress. Plants under greenhouse conditions were irrigated with solutions of NaCl (0, 100 and 200 mM), 3 times a week, for 45 days. The effect of stress was evaluated by the variables: plant height; dry matter production; foliar concentrations of Na and K; membrane stability index; and malondealdeide content. The experimental arrangement was completely randomized with 15 treatments and 3 replications. Data were subjected to analysis of variance and means comparison. It was concluded that at very high levels (200 mM) stress can be considered detrimental to the specie, featuring a severe stress. In the presence of NaCl, the plants decrease its dry matter production and show physiological and biochemical changes indicative of cell oxidation damage. Therefore, it is not advisable the production of this medicinal plant in soils with very high salinity.

Keywords

• medicinal plant
• sodium chloride
• IEM
• MDA