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  • 1
    Electronic Resource
    Electronic Resource
    The Social Psychology of Deviance: Toward a Reconciliation With Social Structure (1982)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Sociology 8 (1982), S. 161-184 
    Details
    ISSN: 0360-0572
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Sociology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.so.08.080182.001113
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Attempts to overcome postfertilization barrier in interspecific crosses of the genus Lens (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 114 (1995), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Wild relatives are a potential source of genetic diversity to lentil (Lens culinaris Medik). The objective of this research was to obtain viable interspecific hybrids between the domesticated lentil and its wild relatives.The paper details the results of a number of interspecific crosses among L. culinaris, L. orientalis, L. odemensis, L. ervoides and L. nigricans. Viable hybrids were produced between L. culinaris × L. orientalis, L. culinaris × L. nigricans, L. culinaris × L. ervoides and between L. culinaris × L. odemensis. Further viable hybrids were obtained between L. culinaris and L. ervoides, which have the potential to be a ‘bridge’ in hybridization to L. culinaris for specific L. nicrigans lines which proved recalcitrant in L. culinaris × L. nigricans crosses. This is the first time that four wild species of lentils have been used successfully in hybridization with cultivated lentils, and viable hybrids produced. This paper also suggests that the artificial supplement of GA3, hormone is needed after fertilization for the normal growth of the hybrid embryo, possibly as the natural GA3 production is restricted with alien pollinations in cultivated lentils in both F1 and backcross hybrids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1995.tb00859.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Breeding for resistance to lentil Ascochyta blight (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: Ascochyta blight, caused by Ascochyta lentis, is one of the most globally important diseases of lentil. Breeding for host resistance has been suggested as an efficient means to control this disease. This paper summarizes existing studies of the characteristics and control of Ascochyta blight in lentil, genetics of resistance to Ascochyta blight and genetic variations among pathogen populations (isolates). Breeding methods for control of the disease are discussed. Six pathotypes of A. lentis have been reported. Many resistant cultivars/lines have been identified in both cultivated and wild lentil. Resistance to Ascochyta blight in lentil is mainly under the control of major genes, but minor genes also play a role. Current breeding programmes are based on crossing resistant and high-yielding cultivars and multilocation testing. Gene pyramiding, exploring slow blighting and partial resistance, and using genes present in wild relatives will be the methods used in the future. Identification of more sources of resistance genes, good characterization of the host-pathogen system, and identification of molecular markers tightly linked to resistance genes are suggested as the key areas for future study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2002.00705.x
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  • 4
    Electronic Resource
    Electronic Resource
    In vitro propagation ofLens species and their F1 interspecific hybrids (1997)
    Springer
    Plant cell, tissue and organ culture 47 (1997), S. 169-176 
    Details
    ISSN: 1573-5044
    Keywords: Lentils ; wild relatives ; micropropagation ; media optimization ; growth regulators ; nodal segments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract As an initial step in establishing interspecific hybridization to broaden the genetic basis of lentils [Lens culinaris ssp.culinaris (Medikus) Williams], a set of experiments was carried out to produce an efficient in vitro protocol for propagation of lentil and two of its wild relatives (Lens ervoides andLens culinaris ssp.orientalis). The objective of the experiments was to optimize the media (Murashige and Skoog) to regenerate shootsin vitro from nodal segments without a callogenic phase. The number of shoots per explant, the number of nodes per shoot and shoot length showed that species differences, gibberellic acid and benzyladenine levels had the largest effects, with only minor interaction effects. The experiments therefore identified a standard protocol which gave the optimum levels of growth regulators, Murashige and Skoog (MS) salts and sucrose concentrations for maximum plant regeneration from the nodal segment of these species. The medium recommended for optimal shoot regeneration without a callogenic stage contained 2.89 μM GA3 in combination with 1.11 μM BA in MS medium lacking sucrose. The optimal medium for root induction on these shoots had the MS medium supplemented with 5.37 μM NAA. Final successful establishment of regenerated plants was completed by the transfer to a third medium containing half-strength MS salts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02318954
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