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clubroot |
Also found in: Wikipedia, Hutchinson | 0.04 sec. |
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clubroot, disease of cabbages, turnips, radishes, and other plants belonging to the family Cruciferae (mustard mustard, common name for the Cruciferae, a large family chiefly of herbs of north temperate regions. The easily distinguished flowers of the Cruciferae have four petals arranged diagonally ("cruciform") and alternating with the four sepals. ..... Click the link for more information. family). It is induced by a plasmodial slime mold slime mold or slime fungus, a heterotrophic organism once regarded as a fungus but later classified with the Protista . In a recent system of classification based on analysis of nucleic acid (genetic material) sequences, slime molds have been ..... Click the link for more information. that attacks the roots, causing, in the cabbage, undeveloped heads or a failure to head at all. Clubroot can be partially or in some cases completely controlled by the application of lime (if the soil is very acid), by rotation of crops, and by soil sterilization. The disease is also called finger-and-toe from the swollen shape it gives to roots. Plasmodial slime molds (phylum, or division, Myxomycota) are classified in the kingdom Protista Protista (prōtĭs`tə) or Protoctista ..... Click the link for more information. . |
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