Competitive Ability of Rice Varieties against Cyperus serotinus

너도방동산이에 대한 수도품종의 경합력

Competitive ability was determined for two different varieties, Josaengtongil (early maturing indicajaponica type) and Jinheung (medium maturing japonica type), against Cyperus serotinus(nut sedge). An increase of rice density increased competitive ability of rice to C. serotinus. The results indicate that the use of tall and medium maturingvariety like Jinheung provides better competitive ability against C. serotinus than Josaengtongil, a semi-dwarf and early maturing type.