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  • Hoplias malabaricus  (2)
  • Ubbelohde viscometer  (2)
  • ethanol  (2)
  • Springer  (6)
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  • Springer  (6)
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  • 1
    Electronic Resource
    Electronic Resource
    Effect of kind and method of fungicidal treatment of bean seed on infections by the VA-mycorrhizal fungus Glomus macrocarpum and by the pathogenic fungus Fusarium solani (1991)
    Springer
    Plant and soil 132 (1991), S. 41-46 
    Details
    ISSN: 1573-5036
    Keywords: benomyl ; captan ; dichloromethane ; ethanol ; fresh root weight ; top dry weight ; fungicidal seed treatment ; Fusarium solani ; Glomus macrocarpum ; Phaseolus vulgaris
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract To test the effect of seed treatment with fungicides on the development of mycorrhizal fungi, bean seeds were treated with fungicide dry or vehicled in the organic solvents, ethanol or dichloromethane and then planted in soil inoculated with the mycorrhizal fungus Glomus macrocarpum and/or the plant pathogenic fungus Fusarium solani. Measurements were made at 4 day intervals, to assess the presence of mycorrhizae or disease in the roots as well as top dry weight, root fresh weight and root length. Fungicidal seed treatment did not affect the initial occurrence of mycorrhizae, number of spores of G. macrocarpum in the soil or root length. Fresh weights of roots and dry weights of tops were greater in the presence of the mycorrhizal fungus. The onslaught of symptoms by F. solani was significantly retarded by treatment with fungicides plus mycorrhizal fungi or fungicides plus organic solvents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011010
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of kind and method of fungicidal treatment of bean seed on infections by the VA-mycorrhizal fungus Glomus macrocarpum and by the pathogenic fungus Fusarium solani (1991)
    Springer
    Plant and soil 132 (1991), S. 47-51 
    Details
    ISSN: 1573-5036
    Keywords: benomyl, captan ; dichloromethane ; ethanol ; fungicidal seed treatment ; Fusarium solani ; Glomus macrocarpum ; organic solvents ; Phaseolus vulgaris ; spatial progression ; temporal progression ; VA-mycorrhizas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract To test the effect of seed treatment with fungicides on the development of mycorrhizal fungi, bean seeds were treated with fungicide dry or vehicled in the organic solvents, ethanol or dichloromethane and then planted in soil inoculated with the mycorrhizal fungus Glomus macrocarpum and/or the plant pathogenic fungus Fusarium solani. Measurements were made at 4 day intervals, to evaluate the location and extent of colonization of either Glomus macrocarpum or Fusarium solani in the root system. Most combinations of fungicide-solvent had little effect on the extent of colonization by each fungus individually. However, when both fungi were inoculated together, symptoms of F. solani were seen only in the tips of roots which indicate that the mycorrhizal fungus was able to limit the occurrence of the pathogenic fungus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011011
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  • 3
    Electronic Resource
    Electronic Resource
    Comparative Cytogenetics Among Allopatric Populations of the Fish, Hoplias Malabaricus. Cytotypes with 2n = 42 Chromosomes (2000)
    Springer
    Genetica 110 (2000), S. 1-9 
    Details
    ISSN: 1573-6857
    Keywords: allopatric populations ; Erythrinidae fish ; Hoplias malabaricus ; karyotypic differentiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The available chromosomal data on Hoplias malabaricus make possible the identification of three major karyotypic forms in this fish group, all of them bearing 2n = 42 chromosomes, and named as Cytotypes A, B and E in previous studies. While Cytotype A and B share a general macrokaryotypic feature, Cytotype E is well differentiated concerning the morphology and size of some chromosome pairs. On the other hand, Cytotype B presents an exclusive XX/XY sex chromosome system. Six allopatric populations, belonging to Cytotype A, were subjected to cytogenetic analysis in the present study. Despite their basic karyotypic similarity, some differences in the chromosome formulae, as well as in the heterochromatin and Ag-NORs locations, were observed among populations indicating that they no more correspond to a unit, at least in the cytogenetical level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017572030350
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  • 4
    Electronic Resource
    Electronic Resource
    Surface-tension effects in suspended-level capillary viscometers (1991)
    Springer
    International journal of thermophysics 12 (1991), S. 1013-1028 
    Details
    ISSN: 1572-9567
    Keywords: capillary viscometers ; Ostwald viscometer ; surface tension ; Ubbelohde viscometer ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The results of an experimental study of surface-tension effects in kinematic capillary viscometers of the suspended-level type are presented. These results are deduced from a comparison with measurements obtained with a special Ostwald viscometer in which surface-tension effects are negligibly small. It is shown that surface-tension effects in suspended-level viscometers are sensitive to the shape of the capillary exit. Recommendations how to minimize these effects are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503516
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  • 5
    Electronic Resource
    Electronic Resource
    Viscosity of liquid toluene in the temperature range 25–75°C (1987)
    Springer
    International journal of thermophysics 8 (1987), S. 641-647 
    Details
    ISSN: 1572-9567
    Keywords: Arrhenius equation ; capillary-flow viscometry ; toluene ; Ubbelohde viscometer ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New accurate experimental data are presented for the viscosity of liquid toluene. The viscosity was measured relative to the viscosity of liquid water with the aid of an Ubbelohde capillary viscometer. The data cover a temperature range from approximately 25 to 75°C and are represented with high precision by an Arrhenius equation
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500784
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  • 6
    Electronic Resource
    Electronic Resource
    An XX/XY Sex Chromosome System in a Fish Species, Hoplias malabaricus, with a Polymorphic NOR-Bearing X Chromosome (2000)
    Springer
    Chromosome research 8 (2000), S. 111-118 
    Details
    ISSN: 1573-6849
    Keywords: Hoplias malabaricus ; polymorphic NOR ; 5S rDNA ; 18S rDNA ; sex chromosomes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cytogenetic studies were carried out in the fish, Hoplias malabaricus, from the Parque Florestal do Rio Doce (Brazil). This population is characterized by 2n = 42 chromosomes for both males and females and an XX/XY sex chromosome system, confirmed through several banding methods. Females show 24 metacentric, 16 submetacentric and 2 subtelocentric chromosomes. Males show 24 metacentric, 17 submetacentric and 1 subtelocentric chromosomes. While the X chromosome is easily recognized (the only subtelocentric element), the Y chromosome is somewhat difficult to identify but appears to correspond to the smallest submetacentric in the male karyotype. In-situ hybridization with an 18S rDNA probe showed 10 well-labeled chromosomes, including the X chromosome. The 5S rDNA is interstitially located in a single metacentric pair independent of the 18S rDNA sites. The NOR on the X chromosome is always active and occurs adjacent to a heterochromatic distal segment on the long arm. Variations in size of the NORs and/or heterochromatic segment correspond to a polymorphic size condition observed in the X chromosome. The present results confirm the XX/XY sex chromosome system in the population analyzed as well as a new cytotype in the Hoplias malabaricus group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009238402051
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