<i>Heterobasidion annosum s.s</i>. virulence analysis on <i>Picea abies</i> and <i>Pinus sylvestris</i>.

aIsolates are sorted from low to high mean growth in sapwood of spruce. bVirulence was measured as lesion length and growth in sapwood up- and downstem from the wound combined in mm, ± s.d. cNumber of successful infections out of 10.a. 分离株（isolate）按云杉边材（sapwood）平均生长量由低到高排序。 b. 毒力（virulence）以伤口对应茎段上下方的病斑（lesion）长度与边材生长量之和为测量指标，单位为毫米，数据以均值±标准差（s.d.）表示。 c. 10次接种中的成功感染例数。