@article{article_412889, title={The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes}, journal={Akdeniz University Journal of the Faculty of Agriculture}, volume={9}, pages={94–100}, year={1996}, author={Samancı, Bülent}, keywords={Azot, Genotip, Mısır}, abstract={<p>The effects of different nitrate concentrations (0, 0.05, 0.50, 0.75 and 1 mol m-3 NO-3) on five maize hybrid genotypes were studied. The root and shoot growth depended on the genotype and concentration of NO-3 in the nutrient solution. Increase of NO-3 concentrations in the nutrient solution significantly reduced the root length to 24.34 cm whereas, weight did not increased accordingly. Highest root weight was obtained at 0.05 NO-3 level. The genotypes reacted differently to the increase of NO-3 concentration in the nutrient solution in shoot and root length but not with the weight. Root and shoot length and weight ratio as well as root/shoot ratios were independent from nitrogen concentration for the hybrid genotypes. With increasing nitrogen levels, cells in roots were also changed from 90 to 38, 5 μ in length and 15 to 8.12 μ in vvidtb. This study could be useful for screening hybrid genotypes for the efficient use of nitrogen. </p>}, number={1}, publisher={Akdeniz Üniversitesi}