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  • Cucumis sativus  (2)
  • Isoptera  (2)
  • Springer  (4)
  • American Geophysical Union
  • Copernicus
  • PANGAEA
  • 2000-2004
  • 1980-1984  (4)
Collection
Keywords
Publisher
  • Springer  (4)
  • American Geophysical Union
  • Copernicus
  • PANGAEA
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Soldier-specific chemicals of the termiteCurvitermes strictinasus Mathews (Isoptera, Nasutitermitinae) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 127-133 
    Details
    ISSN: 1573-1561
    Keywords: Isoptera ; Nasutitermitinae ; isolation ; identification ; Curvitermes strictinasus (Mathews) ; defense secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The defense secretion of the soldier termites ofCurvitermes strictinasus Mathews has been analyzed. Seven components have been isolated and identified, including limonene, terpinolene,p-cymen-8-ol, tridecan-2-one, tridecen-2-onecis,trans-farnesal, andtrans,trans-farnesal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988640
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  • 2
    Electronic Resource
    Electronic Resource
    Combining ability for femaleness and yield in single and 3-way crosses of pickling cucumbers intended for once-over harvest (1981)
    Springer
    Euphytica 30 (1981), S. 183-192 
    Details
    ISSN: 1573-5060
    Keywords: Cucumis sativus ; pickling cucumber ; vegetable breeding ; mechanical harvest ; femaleness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Single and 3-way cross hybrids derived from 13 parental lines of pickling cucumber were used to estimate general and specific combining ability for femaleness and yield. Parental lines ‘551F’, ‘368G’, ‘581H’, and ‘5802A’ exhibited the highest general combining ability effects in both single and 3-way crosses for total yield and marketable yield. Additive effects of genes were found to be relatively more important than nonadditive effects for both femaleness and yield. Cucumber breeders might develop high yielding cultivars based on high general combining ability for yield in parental arrays; moreover, the general performance of the parental lines in single crosses could be used to predict high yielding 3-way hybrid crosses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033676
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical composition of the frontal gland secretion ofSyntermes soldiers (Isoptera, Termitidae) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 135-145 
    Details
    ISSN: 1573-1561
    Keywords: Isoptera ; Nasutitermitinae ; Syntermes species ; defensive secretion ; isolation ; identification ; terpenoid compounds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The defensive secretions from the frontal glands of soldier termites of the genusSyntermes contain similar mixtures of mono- and sesquiterpene hydrocarbons. The major components inS. dirus, S. molestus, S. brevimalatus, S. peruanus, and a new species (Syntermes sp. n), iscis-β-ocimene. A substantial amount of aristolochene is found inSyntermes sp. n. and is present at lower levels in all the other species;S. brevimalatus contains onlycis-β-ocimene and aristolochene. The four other species also contain minor amounts of epi-α-selinene and germacrene A. The latter compound has been identified on the basis of its rearrangement product β-elemene. The termiteS. grandis differed markedly from the otherSyntermes species in that no terpenoid components were found in the soldier extract. With the obvious exception ofS. grandis, the same soldier-specific mono- and sesquiterpenes occurred in all species. The total amount of secretion per unit weight of soldiers varies with the species and is inversely proportional to the development of the mandibular apparatus. InS. molestus smaller gland size is compensated for by a greater number of soldiers foraging trails.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988641
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  • 4
    Electronic Resource
    Electronic Resource
    Inheritance of reaction to Pseudomonas lachrymans in pickling cucumber (1982)
    Springer
    Euphytica 31 (1982), S. 847-855 
    Details
    ISSN: 1573-5060
    Keywords: Cucumis sativus ; pickling cucumber ; Pseudomonas lachrymans ; angular leafspot ; disease resistance ; vegetable genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Cucumber (Cucumis sativus) lines resistant to angular leafspot caused by Pseudomonas lachrymans react to an infection by developing necrotic lesions that lack the chlorotic halo characteristic of the susceptible reaction. The inheritance of the non-halo lesion reaction was studied in all possible crosses between resistant lines MSU 9402 and Gy 14A, and susceptible cultivars Wisc. SMR 18 and National Pickling. Genetic analysis of the F1, F2, backcross and F3 populations revealed that the non-halo lesion type, associated with resistance, was controlled by a single recessive gene, pl. This character appears to be an important component of resistance to P. lachrymans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039225
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