Effect of ratoon cropping of sorghum cultivars on the tillering contributing on the forage and grain yield

A field experiment was conducted in the fieduring the fall season of 2017 to investigate the effect of ratooning cropping and its contribution to the green forage and grain yield of five sorghum cultivars viz. Inqath, Lilo, Ishtar, Bohooth, and Caffier. The results showed that the cultivars differed in most of the studied traits. The cultivar Bohooth-70 produced the highest average of the field establishment, a number of tillers, and total grain yield. The cultivar Caffier plants were superior in the number of the additional tillers and the contribution percentage to the green forage yield. The results also revealed that the cultivation method affected significantly the studied traits. The plants of ratoon were superior to those of sowing seeds as they produced the highest average of the total and an additional number of tillers, as well as the green forage yield. The regular cultivation method showed advantage in grain yield producing the lowest percentage of the empty heads. The interaction showed a greater response of the green forage using the ratoon cropping.