Physiological and biochemical effects of 2.4-D herbicide in wheat (Triticum aestivum L.) varieties

In this work were investigated the physiological and biochemical responses depended on toxic effect caused by different concentrations of herbicides called as 2.4-Dichlorophenoxyacetic acid (2.4-D) herbicide in seedlings that belong to three wheat varieties. The seeds which (Triticum aestivum L. Bayraktar cv., İkizce cv. Tosunbey cv.) used plant material. 15-day old for each variety divided into 4 groups consisting same number four doses (0, 100 µM, 300 µM ve 1000 µM) applied them. these applications was preferred hydroponic surrounding root. Although varieties increased growth root shoot elongation from parameters seedlings, it leaded a decrease general herbicide. 2.4-D leaves an increase μM dose only amount chlorophyll a+b. ones except these, there has always been decreased. carotenoid resulted reduction Amount MDA all Glutathione (GSH) / oxidized glutathione (GSSG) ratios superoxide dismutase (SOD) activity at decreased Tosunbey. Catalase (CAT) showed As result, determined 2.4-D, plants even very low concentrations.