A set of 50 sunflower genotypes collected from 11 widely different geo
graphical regions of the world were examined for quantitative measurem
ent of genetic diversity. The clustering pattern of genotypes indicate
d that genetic and geographical diversity were not related. The genoty
pes were grouped in five clusters. High variability could be obtained
for earliness, seeds per head, 1000-seed weight and seed yield in cros
sing programme involving genotypes from widely related clusters.