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  • dihaploids  (2)
  • Extraktion von Kobalt(II)  (1)
  • Springer  (3)
  • De Gruyter
  • Periodicals Archive Online (PAO)
  • Wiley
  • 2010-2014
  • 1990-1994
  • 1975-1979  (3)
  • 1950-1954
  • 1930-1934
  • 1978  (3)
  • 1930
Collection
Keywords
Publisher
  • Springer  (3)
  • De Gruyter
  • Periodicals Archive Online (PAO)
  • Wiley
Years
  • 2010-2014
  • 1990-1994
  • 1975-1979  (3)
  • 1950-1954
  • 1930-1934
Year
  • 1978  (3)
  • 1930
  • 1
    Electronic Resource
    Electronic Resource
    Genetics of self-compatibility in dihaploids of Solanum tuberosum L. 2. Detection and identification of all possible incompatibility and compatibility genotypes in six F1'S from interdihaploid crosses (1978)
    Springer
    Euphytica 27 (1978), S. 1-11 
    Details
    ISSN: 1573-5060
    Keywords: Self-compatibility ; genetics ; dihaploids ; Solanum tuberosum ; translocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Two self-compatible (sc) dihaploids, G254 and B16, and one self-incompatible (si) dihaploid, G609, from Solanum tuberosum L. were intercrossed reciprocally. Segregation ratios sc : si : pc (pseudo-compatible) were determined in all 6 F1's in three successive years and critically tested and discussed. Genotypes at the S-locus could be assigned to the dihaploid parents and the S-allele on the translocation in sc G254 identified as S 1. Using these genotypes all sc and si genotypes were derived which could be expected in the F1's. Incompatibility groups were detected in each F1 from the results of complete diallels involving si plants. The genotype of each group was identified by test crosses. Compatibility groups could be both detected and identified by crossing in each F1 the sc plants as females with the already identified si sibs. In this way a complete series of 6 si testers and corresponding sc genotypes was obtained involving four alleles at the S-locus and S 1 and S x on the translocation. Certative disadvantage of pollen carrying the translocation could be ruled out as a possible cause of unexpected ratios. The hypothesis of an S-bearing translocation as the cause of self-compatibility could account for all results on the assumption that translocation homozygotes are lethal and the S-allele on the translocation is active in the pollen only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039113
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  • 2
    Electronic Resource
    Electronic Resource
    Genetics of self-compatibility in dihaploids of Solanum tuberosum L. 3. Lethality of S-bearing translocation homozygotes (1978)
    Springer
    Euphytica 27 (1978), S. 13-17 
    Details
    ISSN: 1573-5060
    Keywords: Self-compatibility ; dihaploids ; Solanum tuberosum ; lethality ; translocation homozygotes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Self-compatible (sc) plants from an I1 of the sc dihaploid G254 and from the reciprocal F1's of crosses between G254 and another sc dihaploid, B16, were crossed with the self-incompatible (si) dihaploid G609. The 34 progenies thus obtained were tested for self-compatibility. Only 2 progenies consisted merely of sc plants, the remaining ones showing a homogeneous series of 1 : 1 ratios. It is concluded that homozygosity for the S-bearing translocation mostly leads to lethality. Evidence is presented, that lethality takes place in the very early stages of the embryo and endosperm development. On the basis of the results the expected sc : si ratios in G254 × B16 and reciprocal are calculated to be 3.3 : 1. This ratio was found indeed in our experiments. These findings support the hypothesis put forward in earlier publications in this series, that self-compatibility in G254 and B16 is based on the presence of an S-bearing translocation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039114
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  • 3
    Electronic Resource
    Electronic Resource
    Extraction of cobalt(II) from aqueous thiocyanate and chloride solutions with alamine, alamine oxide and tri-n-octylphosphine oxide (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 289 (1978), S. 358-365 
    Details
    ISSN: 1618-2650
    Keywords: Extraktion von Kobalt(II) ; Thiocyanat- und Chloridlösungen mit Alamin, Alaminoxid und TOPO
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The extraction of Co(II) from KNCS, HNCS, LiCl and HCl solutions with Alamine 336-S, Alamine oxide and tri-n-octylphosphine oxide has been studied. For acid-deficient systems, the extraction efficiency decreases in the order AlamO 〉 TOPO 〉 Alamine, while the sequence is Alamine 〉 AlamO 〉 TOPO for extraction from acid solutions. Under acid-deficient conditions, extraction invariably proceeds through solvation. On the other hand, in the systems Alamine-HCl and -HNCS as well as AlamO-HCl, extraction is governed by anion-exchange. A mixed extraction mechanism occurs with the AlamO-HNCS, TOPO-HCl and TOPO-HNCS systems. The conclusions reported for liquid-extraction also appear to apply to reversed-phase thin-layer chromatography.
    Notes: Zusammenfassung Die Extraktion von Kobalt(II) aus KNCS-, HNCS-, LiCl- und HCl-Lösungen mit Alamin 336-S, Alaminoxid und Tri-n-octylphosphinoxid wurde untersucht. Im Falle von nichtsauren Systemen nimmt die Extrahierbarkeit in der Reihenfolge AlamO 〉 TOPO 〉 Alamin ab, während für saure Systeme die Reihenfolge Alamin 〉 AlamO 〉 TOPO gilt. Unter nichtsauren Bedingungen erfolgt die Extraktion stets durch Solvatation, wogegen in den Systemen Alamin-HCl, Alamin-HNCS sowie AlamO-HCl Anionenaustausch maßgebend ist. Gemischte Extraktionsmechanismen herrschen in den Systemen AlamO-HNCS, TOPO-HCl und TOPO-HNCS. Die für die flüssig-flüssig-Extraktion beschriebene Schlußfolgerungen scheinen auch für die Umkehrphasen-Dünnschicht-Chromatographie zu gelten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00439727
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