벼 잎집썩음병에 관한 여구 -품종저항성검정(品種抵抗性檢定), 병균(病菌)의 배양려액(培養濾液)-

Studies on Sheath Rot of Rice Caused by Acrocylindrium oryzae Sawada -Testing Varietal Reactions and Culture Filtrates of the Causal Fungus-