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  • 1975-1979  (2)
  • Light-sensitivity  (1)
  • Battered child syndrome
  • Triticum aestivum
  • size of cross progenies
  • 1
    Electronic Resource
    Electronic Resource
    Light-induced alterations in cell shape and pigment displacement in chromatophores of the sea urchin Centrostephanus longispinus (1977)
    Springer
    Cell & tissue research 182 (1977), S. 165-176 
    Details
    ISSN: 1432-0878
    Keywords: Chromatophores ; Light-sensitivity ; Granule motion ; Echinoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Alterations in cell shape of the light-sensitive chromatophores of Centrostephanus longispinus are described. Upon illumination a centrifugal pigment movement starts within extremely thin filopodia which radiate from the cell body. With continued pigment migration the cellular processes increase in length and diameter and give the cell an irregular stellate appearance. Pigment movement within the cellular processes is discontinuous in space and time and may occur independently in single filopodia. The motion of single granules shows characteristic features of a saltatory movement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220586
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Number and size of cross progenies from a constant total number of plants manageable in a breeding program (1979)
    Springer
    Euphytica 28 (1979), S. 453-456 
    Details
    ISSN: 1573-5060
    Keywords: Self fertilizing crops ; vegetatively propagated crops ; number of crosses ; size of cross progenies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary This short paper discusses the optimum number of crosses and size of progenies for a given total population size to minimize the risk of not finding any favourable genotype in the breeding material. It is shown that the number of crosses must generally be as large as possible. In special situations it may be advantageous to include also less promising crosses instead of enlarging the progenies of more promising crosses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00056604
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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