black ash spot黑点;黑点纸博
black leaf spot黑色叶斑病
concrete black-spot混凝土黑斑
black-spot method黑斑法
potato black ring spot马铃薯黑环
rose black-spot月季黑斑病
cabbage black ring spot甘蓝黑环斑病
black-spot ores黑斑矿
black k spot交通事故多发地段
In conclusion, SA could induce the local and systemic resistance of Yali pear and Hwangkumbae pear to defense the black spot disease.
综上所述,SA能够通过诱导鸭梨、黄金梨叶片的局部和系统抗性对梨黑斑病产生抗性。
参考来源 - 水杨酸诱导梨抗黑斑病作用机制研究N（名词） a place on a road where accidents frequently occur 事故多发地段