The sensitivity of isolated root cap cells of twenty-two corn inbreds to Hm-toxin produced by Sisolates of Helminthosporium maydis have been studied.

• 本试验用5个小斑菌(Helminthosporium maydis)菌株的毒素液测试了22个玉米自交系离体根冠细胞的敏感性,以分生孢子接种幼苗为对照。