摘要
通过对中林46、I-107、I-69、L35、中菏1号等5个杨树主栽品种杨树黑斑病发生情况调查,摸清了不同杨树品种的抗病性,结果表明,以中林46杨最为感病;同时分析了杨树早期落叶原因,提出了防止或减轻早期落叶现象发生的对策.
Through the investigation of the Marssonina Brunnea occurrence among poplar varieties of Clone46,I-107,I-69,L35 and Heze 1,the paper finds out the disease resistance of different poplar varieties and tests out Clone 46 is the most susceptible one.It analyzes the causes of early defoliation and puts forward some countermeasures to prevent or reduce its occurrence.
出处
《菏泽学院学报》
2017年第5期91-93,共3页
Journal of Heze University
关键词
杨树
黑斑病
调查分析
poplar
Marssonina Brunnea
investigation and analysis