In this study, 43 Collected strains of Grifola frondosa were tested in bottle cultivation. In rate of primordia formation, 10 strains were below 50%, 23 strains were 51~79% and 10 strains were over 80%. In pileus color, almost strains were grayish brown and only one strains were light grayish brown. Ivory and white pileus color were showed 2 strains, respectively. The fresh weight of fruit body per bottle of 25 strains were bellow 69g, that of 16 strains were 70~89g and that of 2 strains were over 90g. We selected 9 strains for parent strains of breeding with useful and various genetic characteristics.

• Jeon, Dae-Hoon(Mushroom Research Institute, Gyeonggi Province Agricultural Research and Extension Services)
• Lee, Yun-Hae(Mushroom Research Institute, Gyeonggi Province Agricultural Research and Extension Services)
• Choi, Jong-In(Mushroom Research Institute, Gyeonggi Province Agricultural Research and Extension Services)
• Kim, Jeong-Han(Mushroom Research Institute, Gyeonggi Province Agricultural Research and Extension Services)
• Chi, Jeong-Hyun(Mushroom Research Institute, Gyeonggi Province Agricultural Research and Extension Services)
• Hong, Hye-Jeong(Mushroom Research Institute, Gyeonggi Province Agricultural Research and Extension Services)
• Moon, Ji-Won(Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)