[目的]筛选南方根结线虫的易感寄主.[方法]通过接种试验比较了南方根结线虫对5种寄主植物(黄瓜、番茄、茄子、菠菜及辣椒)的侵染能力.[结果]南方根结线虫时不同寄主植物的侵染能力存在显著差异.黄瓜和番茄的根结百分率显著高于菠菜、茄子和辣椒,黄瓜和番茄根际土壤中2龄幼虫数、雌成虫数及卵块数都显著高于菠菜、茄子和辣椒.[结论]南方根结线虫对黄瓜和番茄的侵染能力显著强于菠菜、茄子和辣椒,为南方根结线虫的易感寄主植物.%[Objective] To screen out the easily-infected plants of Mehidogyne incognita. [Method] The infection abilities of Meloidogyne incognita to 5 different host plants (cucumber, tomato, eggplant, spinach and pepper) were investigated in greenhouse. [Result] The infection capability varied significantly from plant to plant. Root-knot percentages of cucumber and tomato were much higher than that of other three plants. The number of the 2nd instar larvae in the rhizosphere soil and the quantity of adult female and egg mass in root of cucumber and tomato were more than that of spinach, eggplant and pepper. [ Conclusion ] The infection ability of Meloidogyne incognita was much higher to cucumber and tomato than to other three plants, therefore cucumber and tomato were the easily-infected plants.
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