In Rajasthan, bacterial stripe & black chaff disease of barley (Hordeum vulgare) caused by Xanthomonas campestris pv. translucens has become an upcoming and endemic disease in recent years. The bacterium was found to be seed-borne Seed to seedling transmission of the bacterium showed a quantitative relationship in the density of contaminated / infected seed. The pathway of the bacterium from germinating seed was observed emanating from the husk (glumes) and pericarp to coleoptile and above ground aerial plant parts. The bacterium was observed located in the intercellular spaces of...