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南通棉花枯萎病菌对22个棉花品种致病性的田間和盆栽試驗说明:中棉品种如辽阳一号、鶯湖棉、长丰黑籽、常紫一号、南通白花鸡脚桠鈴果、云南布沼土棉等抗病性比較強,以中棉为母本的中印杂交棉的抗病性也較強;陆地棉和海島棉一般感病程度都較高,但四川选育的陆地棉品种52—128則具有一定的抗病性。将枯萎病菌接种到甘藷等27种作物上,均未感病。五个地区的棉花枯萎病菌致病性的盆栽試驗说明:四川、陝西、辽宁的病原菌致病力較強,江苏的其次,安徽的最弱。以葡萄糖、果糖、半乳糖、甘露糖、乳糖、蔗糖、菊糖、溶解淀粉、阿拉伯糖醇等九种糖和糖醇为碳素营养料时,除四川的病原菌在以半乳糖为碳素营养料时生长中等外,其他都生长旺盛。不同地区病原菌的色素形成、小型孢子、大型孢子和厚膜孢子的产生,随碳素营养料的不同而有所差異。
Nantong Fusarium oxysporum f. Sp. Pathogenicity of 22 cotton varieties in field and pot experiments show that: cotton varieties such as Liaoyang One, Ochota cotton, Changfeng black seeds, often purple one, Nantong white-bellied foot bells bell, Yunnan Bund Soil resistance of cotton and so strong, China-India cotton as the female parent of the resistance is also strong; Upland cotton and sea island cotton are generally high degree of susceptibility, but the Sichuan cotton varieties 52 -128 has a certain degree of disease resistance. Fusarium wilt inoculation of sweet potato and other 27 kinds of crops, were not susceptible. The pathogenic pot experiment of Fusarium oxysporum f. Sp. In five regions showed that pathogenic bacteria in Sichuan, Shaanxi and Liaoning had stronger pathogenicity, followed by Jiangsu and Anhui was the weakest. When glucose, fructose, galactose, mannose, lactose, sucrose, inulin, dissolved starch, arabinitol and other nine kinds of sugar and sugar alcohol as carbon nutrients, in addition to the pathogenic bacteria in Sichuan in the galactose as carbon nutrition When the material growth medium, the other are vigorous growth. Pigment formation in different regions of the pathogen, the production of small spores, large spores and thick film spores, with the carbon nutrients vary.