Salinity tolerance in Sorghum. I. Whole plant response to sodium chloride in S. bicolor and S. halepense

Based on casual qualitative observations, grain sorghum [Sorghum bicolor (L.) Moench] is less tolerant to salt than the noxious weed and potential biomass energy crop, johnsongrass [S. halepense (L.) Pers.]. The objective was to quantitatively compare whole plant growth and physiological responses to salt stress of these two sorghum species. Salt stress was induced by adding incremental levels of NaCl to a vermiculite medium until concentrations of 0.1 and 0.2 M were attained (...)