Allelopathic Potential of Powder Material of Phragmites Karka (Retz.) Ex Trin. Steud on Growth and Yield of Wheat

3 Abstract: Phragmites karka (Retz.) ex Trin. Steud is a fast growing weed grass commonly occurs in the saline and water logged areas of Pakistan. Experiment was conducted to assess the allelopathic effect of powdered material of Phragmites karka on test species wheat. 5 g and 10 g of dry powdered plant parts were separately applied to pots containing 10 seeds each of test species. The results showed that 5 g leaves powder promoted the plant height, number of tillers per plant, number of spikes per plant and number of grains per spike and inflorescence powder enhanced 1000-grains weight of wheat at lower concentration. But increase in the concentration of any plant material to 10 g has suppressive effect and reduced the plant height, number of tillers per plant, number of spikes per plant, number of grains per spike and 1000 grains weight of wheat. The rhizomess showed comparatively more detrimental effects on plant height, number of tillers per plant, number of spikes per plant, number of grains per spike and 1000 grains weight as compare to all other plant parts.