[Application of kanamycin in transgenic mustard(Brassica juncea Coss.)].

In order to find the best screening kanamycin concentration in the genetic transformation of mustard (Brassica juncea Coss.), the seedling cotyledons of mustard were placed on bud-induced media supplemented with different kanamycin concentrations. The bud differentiation of explants was totally inhibited when the kanamycin concentration was greater than 30 mg/L.