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通过对种根采用根接、苗木采用皮接的方法,进行了泡桐丛枝病病原物诱导抗性试验。结果表明,根接后的当年苗木和皮接后第2年的苗木丛枝病发病率明显提高。其中根接当年苗木发病率为4.28%~13.0%,皮接第2年苗木发病率为5.34%~11.76%,对照为0.83%~1.45%和1.14%。用经过根接和皮接诱导后的苗木造林,泡桐幼树丛枝病发病率显著降低。经根接处理后,幼树4a生丛枝病发病率均为零,皮接1次诱导后4a幼树发病率为0~4.17%,而对照发病率为19.8%~31.5%。本项研究结果初步证明,利用嫁接的方法进行病原物诱导,可提高泡桐幼树的抗病力。
Through the root of the seed used in the root, seedlings using a leather method, the Paulownia witches broom disease pathogen-induced resistance test. The results showed that the incidence of seedling witches-bark disease in the second year after seedling and skinning in the same year was significantly increased. Among them, the incidence of seedling in the year was 4.28% ~ 13.0%, the incidence of seedling in the second year was 5.34% ~ 11.76%, while the control was 0.83% ~ 1.45% and 1 .14%. With root and skin induction after the seedlings afforestation, Paulownia young bush twig disease incidence was significantly reduced. After root treatment, the incidence of cucumber bark disease was zero, and the incidence of young saplings was 0 ~ 4.17% after 1 second inoculation, while the control incidence was 19.8% ~ 31. 5%. The preliminary results of this study proves that the use of grafting methods for pathogen induction can increase the resistance of young Paulownia trees.