Effect of 2,4-D on the induction of translucent sticky callus in the S. nigrum root, stem, and leaf explants.

Note: Callus induction rate refers to the ratio of explants with an induced callus to the total number of explants inoculated. The mean and standard error per treatment were calculated from 300 explants from 30 petri dishes (as 30 replicates). Capital and lowercase letters represent significant differences at the 1% and 5% probability levels, respectively. Significant differences were analyzed by the Duncan test, using SPSS 10.0.