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  • Triticum aestivum  (5)
  • bioavailability  (5)
  • Lepidoptera  (4)
  • 42.80
  • Springer  (15)
  • 2015-2019
  • 1980-1984  (15)
  • 1981  (15)
Collection
Keywords
Publisher
  • Springer  (15)
Years
  • 2015-2019
  • 1980-1984  (15)
Year
  • 11
    Electronic Resource
    Electronic Resource
    Synthesis of sex pheromone components of the forest tent caterpillar,Malacosoma disstria (Hübner) and of the western tent caterpillar,Malacosoma californicum (Packard) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 159-164 
    Details
    ISSN: 1573-1561
    Keywords: Synthesis ; isomers ; 5,7-dodecadienal ; sex pheromone ; Malacosoma disstria ; Malacosoma californicum ; Lepidoptera ; Lasiocampidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract All four geometrical isomers of 5,7-dodecadien-1-ol have been stereoselectively synthesized by using Wittig condensation reactions. (5 Z,7E)-5,7-Dodecadien-1-ol and its corresponding aldehyde are components of the sex pheromone of the forest tent caterpillar. (5 E,7 Z)-5,7-Dodecadienal is a component of the pheromone of the western tent caterpillar. These compounds have been successfully tested in the field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988643
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  • 12
    Electronic Resource
    Electronic Resource
    A four-component pheromone blend for optimum attraction of redbacked cutworm males,Euxoa ochrogaster (Guenée) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 615-625 
    Details
    ISSN: 1573-1561
    Keywords: Redbacked cutworm ; Euxoa ochrogaster ; Lepidoptera ; Noctuidae ; sex pheromone blend ; sex attractant ; parapheromone ; Z-5-decenyl acetate ; Z-5-undecenyl acetate ; Z-5-dodecenyl acetate ; Z-7-dodecenyl acetate ; Z-9-dodecenyl acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Four acetates,Z-5-decenyl acetate,Z-5-,Z-7-, andZ-9-dodecenyl acetates, in microgram ratios of 1∶200∶2∶1 or 1∶200∶6∶2 were excellent, specific sex pheromone blends for capturing male redbacked cutworm moths in cone traps. Blends in ratios of 1∶200∶2∶1 and 2∶200∶2∶1 at 1000 μg/ rubber septum dispenser remained highly effective for 6 weeks under field conditions. The essential minor components,Z-5-decenyl,Z-7-, andZ-9-dodecenyl acetates, became inhibitory at concentrations of about 10% in the blends, and this may be an important general phenomenon in lepidopteran pheromones. Blends involving a parapheromone,Z-5-undecenyl acetate, withZ-5-,Z-7-, andZ-9-dodecenyl acetate, in microgram ratios of 8∶200∶2∶1 or 20∶200∶6∶2 were also excellent specific attractants for this species. TheZ-8-dodecenyl acetate had no obvious effect on the attraction of the redbacked cutworm males.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987709
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  • 13
    Electronic Resource
    Electronic Resource
    Comparative distribution and persistence of disparlure in woodland air after aerial application of three controlled-release formulations (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 867-880 
    Details
    ISSN: 1573-1561
    Keywords: Disparlure ; gypsy moth ; Lymantria dispar ; Lepidoptera ; Lymantriidae ; controlled release ; laminated dispensers ; hollow fibers ; microcapsules ; atmospheric permeation ; mating disruption ; air concentration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Disparlure, the gypsy moth sex pheromone, was aerially applied to three plots, using a different controlled-release formulation-gelatin microcapsules, flakes of plastic laminates, or hollow fibers-in each plot. Disparlure concentrations in air were measured intermittently over a 34-day period after application. Measurements were made at four heights above ground: 0.3,2,5, and 10m. Wind speed and air temperature were measured concurrently. Disparlure was emitted from the microcapsules and fibers at very high levels for the first day or two; thereafter, all three formulations produced gradually decreasing aerial concentrations. After 32–34 days, concentrations in all plots ranged from 1.5% to 15.5% of those on the first day, although most of the pheromone remained in the formulations. Results suggest that the effective life of all three formulations for mating disruption by atmospheric permeation would be near 30 days under the test conditions, with fibers likely to have the shortest life. Concentrations varied diurnally throughout the experiment, with highest levels generally between 1400 and 2200 hr each day. Concentrations were highest at the 10-m height with microcapsules and at the 0.3- and 10-m heights with flakes, but were similar at all heights with fibers. Biological implications of the results are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00992384
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  • 14
    Electronic Resource
    Electronic Resource
    A least-squares method for choosing the best relative proportions when intercrossing cultivars (1981)
    Springer
    Euphytica 30 (1981), S. 153-160 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; spring wheat ; parent selection ; cross prediction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary It is supposed that k variables have been measured on each of m potential parents, and that the aim is to produce a base population for which the mean values are as close as possible to an ideal genotype. A least-squares estimation procedure for the parent proportions is presented and the determination of the closest practical solution is considered. It is shown that an enumeration procedure for finding the best practical solution, which is applicable in most situations, is simpler and more flexible than the least-squares method. A proposed symbolic presentation of the results of an analysis highlights the strengths and deficiencies of a set of parents and indicates which parents may complement one another.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033672
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  • 15
    Electronic Resource
    Electronic Resource
    A classification of the NORIN 10 and Tom Thumb dwarfing genes in British, Mexican, Indian and other hexaploid bread wheat varieties (1981)
    Springer
    Euphytica 30 (1981), S. 355-361 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; gibberellin insensitivity ; cultivar classification according to Rht genotype
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The two semi-dwarfing genes Rht1 and Rht2 from Norin 10 have now been incorporated in successful varieties in use in most major wheat growing areas. The more potent dwarfing gene, Rht3, from Tom Thumb has been used in a limited way. These genes may be identified and classified by assessing the associated character of GA-insensitivity in the progeny from test crosses. This paper describes these classifications in the CIMMYT, Mexican, PBI, Cambridge and Indian breeding programmes and for a number of other international varieties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033997
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