油茶不同无性系品种对炭疽病感病性初步分析

为探究湖北省油茶炭疽病感病情况，调查分析了油茶长林系列CL3、CL4、CL23、CL40、CL18五个无性系品种和鄂油系列EY102、EY151、EY63、EY81、EY54 五个无性系品种的不同植株方向、不同植株部位及不同无性系品种间的炭疽病感病差异。结果表明：油茶植株东西向及植株上层、下层更易发生炭疽病；10个无性系品种间炭疽病感病率存在极显著差异，CL18、CL23、CL4 3个无性系品种更易发生炭疽病，感病率为6.97%～9.66%，达到感病2级，其余无性系品种均为感病1级，感病率仅为0.58%～2.74%；长林系列比鄂油系列无性系更易发生炭疽病，CL3、CL40和鄂油系列5个无性系品种对炭疽病的感病性较弱。

Pathogenic Analysis of Anthracnose Disease in Different Clones of Camellia Oleifera

Abstract:In order to explore the situation of anthracnose disease in Hubei Province, the anthracnose disease differences of different tree directions, tree parts among 5 clones of CL3, CL4, CL40, CL18 CL23 and 5 clones of EY102, EY151, EY63, EY81,EY54 were analyzed.The results showed that East-west and the upper and lower layers of trunk in Camellia oleifera were more prone to anthracnose; There were very significant differences in anthracnose susceptibility rates among the 10 clones,clones of CL18, CL23 and CL4 3 were more prone to anthrax, with a susceptibility rate of 6.97%to 9.66%, reaching disease grade 2, the remaining clones were susceptible grade 1, and susceptibility rate was only 0.58% to 2.74%;The Changlin series clones were more prone to anthracnose than the Eyou series clones, and CL3, CL40 and five clones of Eyou series were more antracnose disease resistance.