In vitro mutation induction by NaN3 in ryegrass variety “Blue Heaven” and RAPD analysis for its variation A preliminary study on fermentation technology in the manufacture of fuel alcohol using annual ryegrass Nutritional values of Italian ryegrass for growing rabbits The genetic variation revealed by SSR markers in crossbreeding groups of annual ryegrass after continuous mass selection Effect of winter cropping Italian ryegrass on N and P leakage from soils