We developed a log-burying cultivation technique for Grifola frondosa using oak logs and surveyed its annual yield characteristics. As a result of G. frondosa log cultivation, the harvesting period of the ‘Yipsae1ho’ cultivar was delayed by approximately 10-15 days compared to that of the Dabak cultivar, and the fruit color of the ‘Yipsae1ho’ cultivar was dark brown, while that of the ‘Dabak’ cultivar was grayish brown. Yield of the ‘Yipsae1ho’ cultivar was 16.0 kg/㎡ in the first year, 15.4 kg/㎡ in the second year, 9.5 kg/㎡ in the third year, 4.6 kg/㎡ in the fourth year, and 4.6 kg/㎡ in the fifth year, while yield of the ‘Dabak’ cultivar was 12.3 kg/㎡ in the first year, 11.5 kg/㎡ in the second year, 12.7 kg/㎡ in the third year, 6.2 kg/㎡ in the fourth year, and 8.2 kg/㎡ in the fifth year. Total yield of the ‘Yipsae1ho’ cultivar (50.0 kg/㎡) was slightly lower than that of the ‘Dabak’ cultivar (50.8 kg/㎡). The optimum period for log-burying cultivation of Grifola frondosa is estimated to be 3 years.

Grifola frondosa is a polypore mushroom that grows in clusters of oaks. The mushroom is commonly known among English speakers as Maitake, hen of the woods, ram's head and sheep's head. It is typically found in late summer to early autumn. Maitake mushroom is used to treat cancer and also to relieve some of the side effects of chemical treatment (chemotherapy) for cancer. It is also used for HIV/AIDS, chronic fatigue syndrome(CFS), hepatitis, hay fever, diabetes, high blood pressure, high cholesterol, weight loss or control, and infertility due to a condition called polycystic ovary syndrome. We have developed log cultivation technique of Grifola frondosa to produce better quality mushrooms and have investigated annual yield characteristics. As a result of the cultivation of Maitake mushroom using oak log, ‘Yipsae1ho’ varieties showed a high yield of 16.0 kg/m2 in the first year, 15.4 kg/m2 in the second year, 9.5 kg/m2 in the third year and 4.6 kg/m2 in the fourth year. The yields were decreased annually. There was no significant difference during the first year to the third year in ‘Dabark’ varieties, but it decreased sharply to 6.2 kg/m2 in the fourth year. Between the varieties, the yield of ‘Yipsae1ho’ varieties was 45.4 kg/m2 totally, which was somewhat higher than that of ‘Darbak’ varieties, 42.6 kg/m2.

본 연구는 논에서 생육특성과 생산성이 우수한 두과 사료작물을 선발하기 위해서 천안(국립축산과학원)과 나주(전남도농업기술원) 답리작 논에서 2004부터 2006년까지 수행되었다. 두과 사료작물은 자운영, 크림손 클로버, 사료용 완두 그리고 헤어리 베치 초종을 공시하였고 각 초종의 품종은 자운영에서 국내에서 자생하는 품종(야생종)과 크림손 클로버(C.V. Linkarus), 사료용 완두(C.V. Austroan pea), 헤어리 베치(C.V. Oregon