检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:胡薇宁[1] 赵永立[1] 王春和[1] 王彦臣[1]
机构地区:[1]保定市园林局,河北保定071000
出 处:《河北林果研究》2002年第2期166-168,共3页Hebei Journal of Forestry and Orchard Research
摘 要:雪松枝枯现象目前在河北地区发生严重。为有效地防治雪松枯枝病 ,进行了观察防治试验。研究表明 ,该症状为雪松疫病。病原菌经分离培养 ,发现是樟疫霉菌 (Photophoracin namoinRanas )危害所致。病菌通过风雨传播、伤口侵入 ,引起枝枯或整株枯死。实验表明采用单一的化学防治效果不太明显 。Edrus deodara shoot-wilting is seriously occurred in Hebei priovince presently. Preliminary study showed that the symptom is Edrus deodara (Roxb) Lobd blight, and its pathogen is determined as Phytopthora cinnamoin by isolating culture The infection of the pathogen is through wounding and it is spread by wind and rain, causing shoot wilting and even the whole-tree dead Experiment showed that only chemical control did not work, but comprehensive methods could get good control result
分 类 号:S763.712.1[农业科学—森林保护学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.13