TY - BOOK AU - B BALAKRISHNAN AU - Dr. M CHANDRASEKHARAN NAIR TI - SYMPTOMATOLOGY ETIOLOGY AND CONTROL OF SHEATH ROT DISEASE OF RICE CAUSED BY Acrocylindrium oryzae U1 - J:4 N81 BA 31 PY - 1981/// CY - COLLEGE OF AGRICULTURE VELLAYANI PB - DEPARTMENT OF PLANT PATHOLOGY ER -