温度对万寿菊品种抑制南方根结线虫的影响。
Effect of Temperature on Suppression of Meloidogyne incognita by Tagetes Cultivars.
作者信息
Ploeg A T, Maris P C
出版信息
J Nematol. 1999 Dec;31(4S):709-14.
The suppression of Meloidogyne incognita by marigolds differed among six marigold cultivars and five soil temperatures. Tagetes signata (syn. T. tenuifolia) cv. Tangerine Gem and the Tagetes hybrid Polynema allowed reproduction and root galling when grown at 30 degrees C, and should not be used for control of M. incognita at temperatures close to 30 degrees C. Tagetes patula cultivars Single Gold and Tangerine and T. erecta Flor de Muerto, when grown within a 20-30 degrees C soil temperature range, significantly reduced root galling and nematode infestation of subsequent tomato compared to tomato following fallow. When grown at 10 degrees C or 15 degrees C, only one of the tested marigold cultivars (T. erecta CrackerJack at 15 degrees C) reduced M. incognita infection of subsequent tomato compared to tomato after fallow. Marigolds should be grown at soil temperatures above 15 degrees C to suppress M. incognita infection of a subsequent crop.
在六种万寿菊品种和五种土壤温度条件下，万寿菊对南方根结线虫的抑制作用存在差异。细叶万寿菊（Tagetes signata，同义词T. tenuifolia）品种“橘子宝石”（Tangerine Gem）和万寿菊杂交种“波利内马”（Polynema）在30摄氏度下种植时会出现繁殖和根部结瘤现象，因此在接近30摄氏度的温度下不应将其用于防治南方根结线虫。孔雀草（Tagetes patula）品种“单金”（Single Gold）、“橘子”（Tangerine）以及万寿菊（T. erecta）品种“亡灵之花”（Flor de Muerto），在20至30摄氏度的土壤温度范围内种植时，与休闲后种植的番茄相比，显著减少了后续番茄的根部结瘤和线虫侵染。在10摄氏度或15摄氏度下种植时，与休闲后种植的番茄相比，只有一种受试万寿菊品种（15摄氏度下的万寿菊品种“脆杰克”（CrackerJack））减少了后续番茄的南方根结线虫感染。万寿菊应在土壤温度高于15摄氏度的条件下种植，以抑制后续作物的南方根结线虫感染。
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