Salinity Tolerance in Sorghum . II. Cell Culture Response to Sodium Chloride in S. bicolor and S. halepense

Grain sorghum [Sorghum bicolor (L.) Moench], is reported to be less tolerant to salt than the noxious weed and potential biomass energy crop, johnsongrass [S. halepense (L.) Pers.]. The objective was to compare callus growth and osmotic responses to salinity of these two sorghum species. Callus was grown for 2 wk in a liquid Murashige and Skoog medium to which NaCl was added to final concentrations of 0.05, 0.1, and 0.15 M (...)