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  • Springer  (2)
  • 1990-1994  (2)
Publikationsart
Verlag/Herausgeber
Erscheinungszeitraum
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  • 1
    ISSN: 1432-203X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract An efficient protocol has been developed for the in vitro propagation of Mexican Weeping Bamboo through somatic embryogenesis from zygotic embryo explants. Mature seeds and excised embryos were cultured in the light or in the dark on both Murashige and Skoog's and Gamborg's B5 basal media with various supplements. Optimal somatic embryogenesis and plant regeneration were obtained by culture in the dark on Murashige and Skoog's basal medium supplemented with 3 mg/1 2,4-dichlorophenoxyacetic acid, 0.5 mg/1 6-benzylaminopurine and 2.0% sucrose. More than 95% of the germinating somatic embryos developed shoots and roots, and were transferred to soil with 85% success.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Synthese 〈Dordrecht〉 92 (1992), S. 189-220 
    ISSN: 1573-0964
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Allgemeine Naturwissenschaft , Philosophie
    Notizen: Abstract An account of analogical characterization is developed in which the following things are claimed. (1) Analogical predications are irreflexive, asymmetrical, atransitive and non-inversive. (2) Analogies A and B share role-similarity descriptions sufficiently abstract to overcome the differences between A and B. Analogies pivot on the point of limited similarity and substantial, even radical, difference. (3) The semantical theory for sentences making analogical attributions requires a distinction between (sentential) meaning as truth conditions and (sentential) meaning as a functional compound of the meanings of contained lexical items. Analogical sentences possess both kinds of meaning. They are true via their truth conditions and would be false via their ‘lexical’ meanings. The distinctive feature of the ‘lexical’ meaning of analogical sentences is the tightness of constraints on closure. The implications of analogical sentences, given their lexical meanings, though ‘there’, aren't drawn. It is in this sense that analogies are made and not found.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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