Orta Anadolu Koşullarinda Yaygin Olarak Yetiştirilen Melez Misir Çeşitlerinin Bor Toksitesine Duyarliliği 1

Boron tolerance of 13 hybrid maize cultivars was investigated. The experiment was carried out under greenhouse conditions. Boron was applied to the soil at 0, 0.625, 1.25, 2.5, 5, 10 and 40 mg kg- 1 levels as H3BO3. Dry weights and B concentration and B uptake of the plants were determined at the end of the experiment. Boron tolerance of the corn cultivars was determined from the relationships between dry weights and B concentration and B uptake rates. According to the results, B tolerance of cultivars from high to low was as follows: P 3394 ve RX 770, BC 566, LUCE, MAT 97, TTM 815, T 1595, LG 60, LG 55, DK 585, PIAVE and DK 647 ve TTM 8119. In general, B concentrations of low tolerant cultivars were higher than those of high B tolerant cultivars.