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  • 1
    Electronic Resource
    Electronic Resource
    Comparison of resistance toFusarium spp. of glasshouse-and field-grown tuber progenies of potato (1995)
    Springer
    Potato research 38 (1995), S. 345-351 
    Details
    ISSN: 1871-4528
    Keywords: disease screening ; progeny test ; Fusarium coeruleum ; Fusarium sulphureum ; Gibberella pulicaris ; Solanum tuberosum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field-grown tubers of 22 progenies ofSolanum tuberosum L. generated in a crossing programme involving seven parents differing in resistance toFusarium coeruleum Lib. ex Sacc. andF. sulphureum Schlect. (=F. sambucinum Fuckel, teleomorphGibberella pulicaris (Fr.) Sacc.) were wound-inoculated with a cornmeal + sand culture of each pathogen. Parental genotypes were also included. The mean lesion size of each progeny was compared in 2 years of tests, as well as with published data on glasshouse-grown tubers. ForF. coeruleum there was a high correlation between years as well as with the glasshouse data, but no such correlations were apparent withG. pulicaris. Furthermore, parental and GCA values, as well as progeny means and mid-parent scores, also correlated highly forF. coeruleum but not forG. pulicaris. Glasshouse-grown tubers of 11 wildSolanum spp. were also inoculated with both pathogens. Some resistance to one or other, or both, was apparent, particularly inS. chacoense.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357739
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Inheritance of resistance to late blight in foliage and tubers of progenies from parents differing in resistance (1992)
    Springer
    Potato research 35 (1992), S. 313-319 
    Details
    ISSN: 1871-4528
    Keywords: Phytophthora infestans ; Solanum tuberosum L. ; progeny test ; disease screening ; inheritance ; general combining ability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary TenSolanum tuberosum genotypes differing in resistance to late blight (Phytophthora infestans (Mont.) de Bary) in foliage and tubers were intercrossed to determine the inheritance of disease resistance in their progenies. Plots of 10–15 clones per progeny were established in each of 2 years and resistance assessed by field or laboratory tests. The parental genotypes were similarly tested each year. The parents differed in general combining ability (GCA) for both foliage blight (FB) and tuber blight (TB). The parental and GCA scores were significantly correlated for both aspects of the disease, but the correlations between foliage and tuber scores for parents and for GCAs were not significant. Three parental genotypes were highly resistant in both foliage and tubers, and the genotype with the highest GCA for resistance to both FB and TB (cv. stirling) is recommended as the best parent. There was no evidence of strong genetic correlation between both aspects of resistance, and it is suggested that both be selected for in a breeding programme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357712
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Inheritance of resistance toFusarium spp. in tuber progenies of potato (1993)
    Springer
    Potato research 36 (1993), S. 189-193 
    Details
    ISSN: 1871-4528
    Keywords: disease screening ; progeny test ; Fusarium coeruleum ; Fusarium sulphureum ; general combining ability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Glasshouse-grown seedling tubers of 22 progenies from parents differing in resistance toFusarium coeruleum andF. sulphureum (Gibberella cyanogena) were wound-inoculated with a cornmeal + sand culture of one or other of these dry rot pathogens. WithF. coeruleum, differences between progenies were due entirely to differences in the general combining abilities (gca) of the parents. Parental and gca values were highly correlated, as were the mean resistance of a progeny and that of its parents. WithG. cyanogena the agreement between replicates was poor and differences between progenies were less clear. It is suggested that different resistance mechanisms operate against these two pathogens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02360527
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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