Cadmium Accumulation Characteristics of F1 Hybrids by Reciprocal Hybridizing of Two Genotypes of Brassica juncea var. megarrhiza

摘要

To study whether the hybridizing could reduce the growth of F1 hybrids of vegetables under heavy metal stress, a pot experiment was carried out to investigate the cadmium (Cd) accumulation characteristics of F1 hybrids by reciprocal hybridizing of two genotypes of Brassica juncea var. megarrhiza under Cd stress. The results showed that the reciprocal hybridizing of two genotypes of B. juncea var. megarrhiza had no obvious effects on biomass of F1 hybrids to some extent under Cd stress. The Cd contents in F1 hybrids of B. juncea var. megarrhiza were between two parents, which had no obvious reducing effects. Therefore, different genotypes of B. juncea var. megarrhiza hybridizing could had no obvious effects on enhancing biomass and reducing Cd content of F1 hybrids of B. juncea var. megarrhiza under Cd stress.