图5. 分蘖期水稻纹枯病的田间木皮物接种鉴定
(A) 0.8 mm厚竖纹木皮; (B) 布满纹枯菌菌丝的木皮接种物(以下简称木皮接种物); (C) 木皮接种物表面菌丝的显微观测; (D) 用镊子将接种物嵌入自上而下第3叶鞘内侧; (E) 水稻分蘖期田间人工接种; (F) 高感水稻品种Lemont接种后11天的病情扩展情况; (G) 高感水稻品种Lemont抽穗后30天的病情扩展情况。

Figure 5. Evaluation of sheath blight disease resistance in field by using wood veneer inoculation method at rice tillering stage
(A) Wood veneer with a thickness of 0.8 mm; (B) Wood veneer colonized with mycelia of Rhizoctonia solani (hereafter named wood inoculum); (C) Mycelia of R. solani on wood inoculum observed by micrograph; (D) Wood inoculum was put into inner side of the third leaf sheath from up to down by tweezer; (E) Rice plants in the field at tillering stage used for inoculation; (F) Sheath blight development in the highly susceptible rice variety Lemont at 11 days after inoculation in the field; (G) Disease symptoms of Lemont at 30 days after heading in the field.