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  • 1
    Electronic Resource
    Electronic Resource
    Effectiveness of indirect selection for wheat yield in a stress environment (1999)
    Springer
    Theoretical and applied genetics 98 (1999), S. 305-309 
    Details
    ISSN: 1432-2242
    Keywords: Key words Bread wheat lines ; Coheritability ; Diallel cross ; Direct selection ; Indirect selection ; Yellow rust ; Yield
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Effectiveness of indirect selection for grain yield was investigated among eight bread wheat lines, selected in a stress environment in the East African Highlands, where they showed a wide response to yellow rust, the biotic factor causing the stress. The lines were intercrossed to give an 8×8F1 diallel, which was grown in this same environment for three consecutive growing seasons during 1994 and 1995. Half of the last trial was sprayed with fungicide. From the estimates of narrow-sense heritabilities for yield and yellow rust severity, and the genetic correlation between them, indirect selection for yield in the unsprayed plots, obtained by choosing the most resistant 5% of this material was, on average, 12% higher than selecting for yield itself. In the fungicide-treated plots, indirect selection was only 73% as efficient as direct selection. The implications of these results for selecting for yield in stress environments are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051073
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  • 2
    Electronic Resource
    Electronic Resource
    Comparison of methods for calculating the heritability of adult field resistance to yellow rust and grain yield in spring wheat (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 1075-1079 
    Details
    ISSN: 1432-2242
    Keywords: Key words  Triticum aestivum ; Diallel cross ; Parent-offspring regression ; Realized heritability ; Yellow rust ; Yield
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Several methods are available for estimating heritability in disomic species, including parent-offspring regression, realized heritability, intraclass correlations of recombinant inbred lines, and diallel-cross analysis. Estimates were obtained by these various methods for a set of eight bread wheat (Triticum aestivum) lines adapted to the East African highlands, which had been intercrossed and selfed in a half-diallel arrangement to give F1, F2 and F3 generations, and F6 recombinant inbred lines. Significant genetic variation existed among parents and crosses for both grain yield and yellow rust resistance in all generations. Based on the heritability calculated from the analysis of F6 recombinant inbred lines, analysis of the F2 diallel crosses was recommended for determining the heritability of both characters in early segregating generations. The results also suggest that a form of tandem selection may be effective in developing locally adapted germplasm which combines high grain yield with yellow rust resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051417
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  • 3
    Electronic Resource
    Electronic Resource
    Inheritance of adult field resistance to yellow rust disease among broad-based hexaploid spring wheat germplasm (1998)
    Springer
    Theoretical and applied genetics 97 (1998), S. 502-506 
    Details
    ISSN: 1432-2242
    Keywords: Key words Additivity ; Diallel cross ; Dominance ; Epistasis ; Wheat ; Yellow rust
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Complete F1 and F2 diallel crosses were used to investigate the inheritance of yellow rust resistance among eight bread wheat lines, developed by CIMMYT for the East African Highlands, which showed a wide response to this disease. Both diallel sets were grown at a site with a high incidence of yellow rust, although for one season, during which the F1 diallel was grown, disease incidence was unusually low. Analyses disclosed the presence of additive, dominance and epistatic effects among those genes controlling rust resistance, with the former being the most important. At normal disease levels, excluding two arrays having resistant common parents removed non-allelic interactions from the F1 diallels. For all F2 diallels, and the remaining F1 diallel, omitting two arrays based on susceptible parents removed these interactions. Local selection of material from a broadly based germplasm appears to be a feasible method of developing adapted cultivars resistant to endemic diseases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050923
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  • 4
    Electronic Resource
    Electronic Resource
    The inflation of thick-walled inner tubes and tires (1982)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 27 (1982), S. 11-19 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Approximate analytic results for two problems involving the inflation of rubber inner tubes and tires are summarized with a view to prompting a comparison of the theory with experimental results. The problems considered are the uniform inflation by internal pressure of a toroidal rubber inner tube or tire which is a perfect torus either in the deformed or undeformed state. The inner tubes or tires are assumed to be free to inflate, that is, they are assumed not to be constrained, for example by a wheel.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1982.070270102
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  • 5
    Electronic Resource
    Electronic Resource
    Siloxane copolymers with laterally and terminally attached mesogenic side chainsThe authors thank the Science and Engineering Research Council for financial support of the research of which this work was a part. (1989)
    Weinheim : Wiley-Blackwell
    Advanced Materials 1 (1989), S. 292-294 
    Details
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19890010808
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  • 6
    Electronic Resource
    Electronic Resource
    Carbon fiber-reinforced carbon as a potential implant material (1978)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 12 (1978), S. 35-42 
    Details
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: A carbon fiber-reinforced carbon is being evaluated as a promising implant material. In a unidirectional composite, high strengths (1200 MN/m2 longitudinal flexural strength) and high modulus (140 GN/m2 flexural modulus) may be obtained with an interlaminar shear strength of 18 MN/m2. Alternatively, layers of fibers may be laid in two directions to give more isotopic properties. The compatibility of the material with bone has been studied by implanting specimens in holes drilled in rat femora. For a period of up to 8 weeks, a thin layer of fibrous tissue bridged the gap between bone and implant; but this tissue mineralizes and by 10 weeks, bone can be observed adjacent to the implant, giving firm fixation. Potential applications include endosseous dental implants where a greater strength in the neck than that provided by unreinforced carbon would be advantageous.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jbm.820120104
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  • 7
    Electronic Resource
    Electronic Resource
    Differential thermal analysis of silicones (1961)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 55 (1961), S. 419-422 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Differential thermal analysis has been applied to several silicone polymers and compounds with the use of oxidative conditions. The model compounds gave melting points corresponding to literature values. However, volatilization gave a broad endotherm much lower than extrapolated boiling points. The order, in oxidative resistance, was dimethyl silicone oil, silphenylene, methyl phenyl silicone oil.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1961.1205516139
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation and polymerization of vinyl esters of cyclic and polychloro fatty acidsPresented in part at the 141st National Meeting of the American Chemical Society, Washington, D. C., March, 1962. (1964)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 2523-2532 
    Details
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Homopolymers and vinyl chloride copolymers have been prepared from the vinyl esters of mixed hydrogenated cyclized linolenic acid, 9,10-dichlorostearic acid, 9,10,12,13-tetrachlorostearic acid, 13,14-dichlorobehenic acid, 9(10)-phenylstearic acid and technical behenic acid. Vinyl 13,14-dichlorobehenate (29%)-vinyl chloride (71%) gave a copolymer with a brittle temperature of -2°C. All of the other copolymers with vinyl chloride had brittle temperatures of 16°C. or higher and behaved more like rigid plastics.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1964.100020604
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