Callus had no distinct effect on wheat scab and cucurbits mould expect that callus from cotyledons inhibited rape sclerotinia rot, whose activity was lower than that of extracts from seeds.

• 只有子叶诱导的愈伤组织对油菜菌核病菌表现出了抑制作用,各愈伤组织对小麦赤霉病菌和黄瓜灰霉病菌均未表现出明显的活性,显著低于苦参种子提取物的活性。