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  • 1
    Electronic Resource
    Electronic Resource
    Genetic Analysis of Resistance to Phytophthora Root Rot in Tomato (Lycopersicon esculentum Mill.) (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 106 (1991), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The resistant accession, LA1312, and the susceptible cultivar ‘Peto 343′, were crossed to develop F1, F2 and BC1 populations for genetic analysis of resistance in tomatoes to Phytophthora parasitica Dastur, the causal agent of Phytophthora root rot. There was no maternal effect on resistance. Generation means analysis indicated that tolerance to Phytophthora root rot was under genetic control with both simple (additive and dominance) and digenic interaction (additive × additive and additive × dominance) effects contributing to the total genetic variation among generation means. Weighted least square regression analysis indicated that the majority (ca. 96 %) of the genetic variation could be explained by simple additive effects alone. Narrow sense heritability was estimated as 0.22. Based on effective factor formulae, at least five effective factors controlled the resistance. Implications for breeding procedures are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1991.tb00475.x
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  • 2
    Electronic Resource
    Electronic Resource
    Studies on resistance to bacterial speck (Pseudomonas syringae pv. tomato) in tomato cv. Ontario 7710 (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 121 (2002), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Plants of 17 tomato cultivars and four wild Lycopersicon accessions were evaluated for their reaction to Pseudomonas syringae pv. tomato (Pst) in a greenhouse following a leaf-spray inoculation. The genotypes exhibited a large amount of variation in response to Pst infection, with disease severity index (DSI) ratings from 0.2 to 3.9. The cultivar ‘Ontario 7710’ and two accessions of Lycopersicon hirsutum (LA 1773 and LA 1775) were the most resistant, with DSI values of 0.2, 0.4 and 0.6, respectively. Three varieties, M 1812, Kujawski and Warszawski, also showed a high level of tolerance. The most susceptible was ‘A 100’(DSI = 3.9).The inheritance of resistance to bacterial speck was investigated by disease tests in segregated populations obtained by hybridizing the tomato cv. Ontario 7710 with the susceptible variety ‘A 100′. Plants were rated for disease severity by inspecting each plant and were then evaluated according to phenotypic similarity to ‘Ontario 7710’ or ‘A 100’ in respect of the number and size of the spots. Genetic analysis in F1, F2 and backcross segregations indicated that resistance of'Ontario 7710’ to Pst is conferred by one incompletely dominant gene, Pto.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2002.00766.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Investigation of the ^2^8Si(α, p)^3^1P and ^2^8Si(α, d)^3^0P reactions at E"α = 26 MeV
    Amsterdam : Elsevier
    Nuclear Physics, Section A 426 (1984), S. 1-19 
    Details
    ISSN: 0375-9474
    Keywords: Nuclear reactions
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9474(84)90062-9
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    On the mechanism of the ^2^7Al(α, d)^2^9Si reaction
    Amsterdam : Elsevier
    Nuclear Physics, Section A 371 (1981), S. 288-300 
    Details
    ISSN: 0375-9474
    Keywords: Nuclear Reaction
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9474(81)90068-3
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  • 5
    Electronic Resource
    Electronic Resource
    Grinding gray cast iron chip (1992)
    Springer
    Powder metallurgy and metal ceramics 31 (1992), S. 908-911 
    Details
    ISSN: 1573-9066
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Studies have been made on the grinding conditions for SCh21-40 gray cast iron chip of sizes from 10 × 2 × 0.2 to 20 × 5 × 0.5 mm in vibrating mills containing various media. During dry grinding, the mean particle size falls for 6 h, but after 7 h there is agglomeration. Grinding in the presence of distilled water is most effective when the mill body cooling system is switched off. The grinding in that case is accelerated by a factor of 1.5–2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00797612
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    Paper (German National Licenses)
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