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  • Brassica campestris  (1)
  • recessive inheritance  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Examination of resistance to clubroot in accessions of Brassica oleracea using a glasshouse seedling test (1993)
    Springer
    European journal of plant pathology 99 (1993), S. 269-276 
    Details
    ISSN: 1573-8469
    Keywords: Plasmodiophora brassicae Wor. ; inoculation methods ; recessive inheritance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A glasshouse test was elaborated for assessing large numbers of seedlings ofBrassica oleracea for resistance to clubroot, a disease caused by the fungusPlasmodiophora brassicae. The method offers good control of inoculum density per plant, and requires 6–7 weeks from sowing. The results from the glasshouse test correlated well with field test results. With this method, 71 accessions ofB. oleracea reported to carry resistance to clubroot, and one susceptible control cultivar were tested with a Dutch clubroot isolate. High levels of resistance were found in several accessions of cabbage, broccoli and curly kale. F1-populations of resistant cabbage or curly kale × susceptible cabbage were fully susceptible, indicating recessive inheritance of resistance in all cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01974308
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  • 2
    Electronic Resource
    Electronic Resource
    Root hair infection by Plasmodiophora brassicae in clubrootresistant and susceptible genotypes of Brassica oleracea, B. rapa and B. napus (1992)
    Springer
    European journal of plant pathology 98 (1992), S. 361-368 
    Details
    ISSN: 1573-8469
    Keywords: Brassica campestris ; nutrient solution culture ; plasmodium ; zoospore
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The pathogenesis of clubroot, a disease of cruciferous crops caused by the fungusPlasmodiophora brassicae, starts with infection of the root hairs. This process was studied in 13 accessions ofBrassica oleracea, B. napus and B. rapa with varying levels of plant resitance toP. brassicae. Seedlings were grown in a mineral solution, inoculated with resting spores ofP. brassicae, and the number of plasmodia developing in root hairs was recorded. When compared with the standard susceptible cultivar Septa, both higher and lower resistance to root hair infection was found in the accessions of the differentBrassica species. No complete resistance to root hair infection was found. Over the accessions studied, there was no correlation between the plant resistance estimated from greenhouse tests and the resistance to root hair infection of seedlings. The resistance of all accessions must at least partly be caused by other mechanisms which operate after the root hair plasmodia are formed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01974463
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    Paper (German National Licenses)
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