【摘要】 数年来在竹杆锈病的野外调查和人工接种试验中没有发现竹杆锈病菌有转主寄主。病菌担孢子也不侵染竹子。因此,夏孢子是竹杆锈病的唯一的接种体。夏孢子主要由风传播,在南京盛期是5月至6月中旬。夏孢子主要浸染嫩竹,并以伤口浸染为主。潜育期长达7至19个月。各竹种抗病性有明显差异。南京淡竹上的杆锈菌同余杭早竹上的杯绣菌在形态上没有差异,但用它们分别对淡竹和早竹接种,致病性有明显差异,表明竹杆诱菌也可能存在着不同的生理专化型。广泛的调查表明,地势较低、环境较潮湿的竹林发病较重。更多还原

【Abstract】 According to the data obtained, it is quite possible that there isn’t any alter; nate host to bamboo culm rust, and the basidiospore does not infect the plant. The uredospores serve as the sole inoculum of infection. Uredospores are detached and scattered vigorously by wind from May to the middle of June. The rust pathogens invade the tender plants chiefly through wounds. The incubation period varies with host plants. It ranges from about seven months to nineteen months. Significant variations have been found in the resistance of different species of Phyllostachys to rust. There are probably different forms of physiological specializations in rust pathogens. The incidence of disease in damp grove of bamboo is comparatively severe in relatively low terrain.更多还原