ISSN:
1439-0523
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Clubroot, caused by Plasmodiophora brassicae Woron, is a major disease of cruciferous crops and few sources of resistance have been detected and genetically studied in the Brassica oleracea species. In this study, two diallel mating systems using resistant kale lines and susceptible cauliflower lines were performed. Resistance was assessed from a disease index evaluated on young plants artificially inoculated with local isolates of the parasite.Both general and specific combining ability effects (GCA and SCA) and partly reciprocal effects were demonstrated. Resistance inheritance was, however, characterized by a predominance of additive genetic effects (GCA). Three groups of parent lines could be separated; kale lines with very high resistance, kale lines with intermediate resistance and susceptible cauliflower lines. In the two kale groups, two genetically different resistance types were suggested and various recurrent selection procedures are proposed following the diallel results.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1439-0523.1996.tb00892.x
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