Effect of the Mixed Rates of Endophyte-free and -infected Seen on the Endophyte Frequency , Dry Matter Yield and Forage Quality of Tall fescue ( Festuca arundinacea Schreb.)

Endophyte 감염과 무감염 종자의 혼파 비율이 톨 페스큐의 endophyte 감염율 , 수량 및 사료가치에 미치는 영향

This experiment was carried out to investigate the effect of the mixed rates of endophyte-he and -infected seed on the endophyte fkquency, dry matter yield and forage quality of tall fescue(Festuca arundinacea Schreb.) at the Experimental Field of Grassland and Forage Crops Division, National Livestock Research Institute, Suweon, from 1993 to 1994. The results obtained are summarized as follows: Endophyte frequency was increased with mixed rates of higher endophyte-infected seed, however, it was not different between mixed rates of endophyte-free and -infected seed. DM yield of tall fescue was not different between mixed rates of endophyte-fke and -infected seed, and CP, NDF, ADF and IVDMD contents of forage quality were not influenced by mixed rates of endophyte-he and -infected seed. However, the weed contents were slightly increased with high level of endophyte-free seed. The results demonstrated that endophyk-fke tall fescue did not seem to be greatly weak under poor conditions, if the weed contents were slightly increase.