ABSTRACT
Sorghum is cultivated all over the world to satisfy the needs of food, feed, fiber, and industrial raw material. Itis moderately tolerant to salinity and drought stress. The use of salt-tolerant varieties is one best way to increaseplant productivity in saline soils. Present research work was planned to determine the effect of NaCl on foursorghum genotyes (two salt tolerant, i.e., Sandalbar and JS-2002; two salt sensitive, i.e., Noor and FJ-115). Dataindicated that salt stress adversely affected the magnesium and phophorus contents in shoots and roots of allthe four genotypes. Maximum magnesium and phosphorus accumulation were recorded in Sandalbar genotype,followed by Noor and the minimum occurred in the JS-2002 and FJ-115 sorghum genotypes in the case ofshoots. The number of panicles/plant, grain weight/panicle, 1,000-grain weight, and grain yield/plant was alsoreduced by the NaCl stress. The maximum number of panicles and grain weight per panicle was obtained inSandalbar (2.13), followed by JS-2002 (2.0) and the minimum number of panicles was present in FJ-115 (1.96)under saline stress. The maximum 1,000-grain weight decline was calculated in FJ-115 (69.3%), followed byNoor (46%) and the least decrease was noted in Sandalbar (15.2%), followed by JS-2002 (19.4%) in sorghumgenotypes. However, the effect of salt stress was less prominent on salt tolerant genotypes as compared to saltsensitive ones in all these yield components. It was concluded that Sandalbar sorghum genotype has a potentialto be developed for seed and for biomass production at salinity stressed areas.