摘要
在陕西关中地区的雪松(Cedrusdeodara)上发生枝枯病,主要使雪松树的主干和侧枝枯死。(1)经鉴定该病是由子囊菌亚门的茶藨子葡萄座腔菌(Botryosphaeriaribis)所致,无性为半知菌亚门的聚生小穴壳菌(Dothiorellagregaria);(2)该菌适宜生长的温度为27℃,pH为6;营养状况对孢子萌发影响小;(3)化学防治能有效的控制雪松枝枯病。
The pathogen of branch- withering, happening on Cedrus deodara in Guanzhong of Shaanxi, mainly causes the backbone and lateral branch wither. (1)The pathogen was identified as Botryosphaeria ribis, which belongs to Ascomycotina.The asexual pathogen was Dothiorella gregaria, which belongs to Deuteromycotina ; (2)The optimum development temperature of pathogen was 27℃, pH 6; Nutrition condition had less influence on the spore germination ; (3)This chemical control was effective to prevent cedar branch- withering .
出处
《西北林学院学报》
CSCD
北大核心
2005年第3期127-130,共4页
Journal of Northwest Forestry University
关键词
雪松
病原菌
生物学测定
cedar
pathogens
biological characteristis
