STUDIES ON THE RELATION BETWEEN RESISTANCE TO SPHACELOTHECA REILIANA (KIIHN) CLINT VAR.ZEAE PASS.AND 1,4-DIHYDROXY-7-METHOXY-2H-1,4-BENZOXAZIN-3(4H)-ONE IN CORN

• 玉米丁布对玉米丝黑穗病菌抗性关系的研究