Abstract

                                Three genotypes of Sorghum (CSH 5, CS 3541 and SB 461) were studied with respect to various growth and yield components. There were significant differences among the genotypes with regard to the growth components like LAI and NAR and yield components like 1000 grain weight, grain number per ear, grain weight per ear, grain weight per ear, number of grains por ear and length of the ear. CSH 5 was photosynthetically more efficient during the later stages of crop growth as compared to the other two genotypes. It also recorded higher 1000-grain weight and more grain number per ear than those of CS 3541 and SB 461. About 37 and 23 percent more grain yield was obtained in case of CSH 5 as compared to CS 3541 and SB 461 respectively.

Key words : Sorghum, Variation, Leaf area index, Net assimulation rate.