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柑桔树感染了黄梢病后,根部一般很快就發生腐烂(林孔湘,1956)。从腐烂的根上,何畏冷(1937)和陈其(亻暴)(1943)都曾多次分离出各种純粹的镰刀菌。我們也曾屡次从潮汕区,新会县及广州市郊各地各种罹病的柑桔树的腐根上分离出这些真菌。何畏冷認为黄梢病乃由此类真菌所致,但他沒有进行接补試驗,因此也就沒有証明它們的致病力。陈其(亻暴)将此类菌的孢子及菌絲悬浮液噴射于蕉柑、栟柑和雪柑苗木的根部,然后将苗木定植或将悬浮液直接混入新定植的幼树根的用圍土中,两年后,接种树和对照树都一样發病。他認为鐮刀菌不是黄梢病的病原。
Citrus trees infected with the tip of the disease, the roots generally quickly decay (Lin Kong Xiang, 1956). From the decayed roots, Hefeng Cold (1937) and Chen Qi (亻 暴) (1943) have all sorts of pure Fusarium species isolated. We have also repeatedly isolated these fungi from the roots of various diseased citrus trees in Chaoshan, Xinhui and suburbs of Guangzhou. He Wei cold that yellow tip disease is caused by these fungi, but he did not conduct supplementary tests, it also did not prove their virulence. Chen Qi (storms storm) will be spores and mycelium suspension of such bacteria sprayed on the banana, Citrus and Citrus seedlings root, and then the seedlings colonized or the suspension directly into the newly planted roots of young trees In the soil, two years later, both the inoculation tree and the control tree are equally morbid. He believes that Fusarium is not the pathogen of the disease.