A study to find out the beneficial effects of radiation on Cenchrus ciliaris was carried out at University of Agriculture and Nuclear Institute for Agriculture and Biology Faisalabad. The dry see was treated with 1,3,5,7,9,10,15,20,25,30, and 40 KR. Doses of 7to 15 KR doses showed significant increase in tillering, plant height, fresh and dry matter yield. Flowering was earlier in 5 to 15 KR and delayed for other doses. Germination was not much affected. Pollen fertility gradually decreased with the increase in radiation dosage.