Genetic Evaluation of Rice (Oryza sativa L.) Genotypes at Seedling Stage for Their Tolerance to Lead

Twelve Egyptian Rice (Oryza sativa L.) genotypes have been used in Randomized Complete Block Design (RCBD) experiment with three replicates to study their tolerance to lead at seedling stage Those genotypes were: Giza 177, Giza 178, Giza 179, Giza 181, Giza 182, Sakha 101, Sakha 102, Sakha 103, Sakha 104, Sakha 105, Sakha 106 and Egyptian Yasmin. Final Germination Percentage (FGP), Germination Index (GI), Root Length (RL), Shoot Length and Root/Shoot Ratio (R/S %) were estimated under different concentrations of lead. Results indicated that there were highly significant differences between studied genotypes and treatments. Mean performance for studied characters was discussed.