This study examines the effect of different fertilization treatments on Al content of winter wheat at the early stem elongation stage. The investigation was conducted on vertisol soil at an experimental field of the Small Grains Institute, Kragujevac. Physical and most of the chemical properties of the soil were very unfavourable, such as low pH (pH (KCl) < 4.5) and low Ca and P 2 O 5 levels. The experiment included a control and six fertilization treatments (N 80,120 ; N 80 , 120 P 60 K 60 ; N 80 , 120 P 100 K 60 ; N 80 , 120 P 100 K 60 ; N 80 , 120 P 60 ; N 80 , 120 P 100 ; N 80 , 120 K 60 ) . Seven winter wheat cultivars were examined, including Takovčanka, Studenica, Kg–100, Matica, Lazarica, Toplica and Kg–56. Al content of young wheat plants was considerably affected by different fertilization treatments. A high Al content was reported for NK and NP treatments. The higher nitrogen application rate induced an increase in Al content of the aerial portions of plants by about 36% as compared to the lower rate used. Al accumulation in the plants differed considerably across the wheat genotypes observed in this study. The highest Al accumulation in the plants was found in cv. Lazarica (1.63 mg Al g -1 dry matter). The genotypes showed a different response to Al content of the plants.

wheat; genotypes; fertilization; Al

Presentation: oral