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菊花白锈病是菊花重要的流行性病害,其传播迅速,危害严重,给生产造成极大损失。该病在国外早有发现,病原菌确定为堀氏菊柄锈菌(puccinia horiana p.henn.),但其侵染途径、发病规律等涉及所在地生态条件或养护管理方法,故结论有所不同。本次试验结果表明病原菌孢子是由叶背面的气孔侵入,不同温度下病原菌潜育期不同,在空气湿度大、通风条件差的环境,植株发病率高。不同菊花品种对该病抗性差异很大。
Chrysanthemum white rust is an important chrysanthemum epidemic disease, its rapid spread, serious harm to the production caused great losses. The disease has long been discovered in foreign countries, the pathogen identified as Hornetzium daisy rust puccinia (Puccinia horiana p.henn.), But the invasion, the incidence of law involving the local ecological conditions or conservation management methods, so the conclusions are different. The test results show that the pathogen spores are infiltrated by the stomata on the back of the leaves, and the latent period of the pathogenic bacteria is different at different temperatures. In an environment of high humidity and poor ventilation, the incidence of plants is high. Different varieties of chrysanthemum resistance to the disease vary widely.