SOME PHYSIOLOGICAL EFFECTS OF COPPER ON WHEAT CULTIVARS

Copper (Cu), is one of the essential elements for plants. In this study, Triticum aestivum L. cv. Tosunbey and Triticum durum L. cv. Diyarbakır 81 used as plant material to research their responses for different doses of copper. The experiment was designed with three replicates, seeds were germinated in petri dishes and each dish had twenty five seeds. 0-(as control)- 0,05- 0,1 and 0,2 mM Cu concentrations were applied to plants on the 2., 5., 7.,11. and 16. days. Pigment content of plants, was analised according to Arnon (1949), later calculated Lichtenthaler and Wellburn (1983)’s formulas. Proline amount of plants was determined according to Bates et al.’s (1973) method. Statistical analysis of data of the application was performed using the software SPSS® Statistics 20.0 (IBM Corporation, New York, NY, USA). As a result of copper application on Diyarbakır 81 cv. 0,05 mM of application significantly reduced (12%) shoot length. 0,2 mM Cu cause decreasing on shoot length but that not found significant mean (p<0,005). 0,05 mM application caused decreasing (29%) of root length of Diyarbakır 81 cv but other Cu concentrations did not affect. It is found that shoot fresh weight of Diyarbakır 81 cv. decreased (30%) by application of 0,05 mM. Diyarbakır 81 cv. prolin content of root and shoot were not effected. Carotenoid content of Diyarbakır 81 cv. was reduced (47%) by 0,05 mM also same concentration significantly decreased (35,3%) total chlophyll content (p<0,05). Cu application had not a significant mean (p