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  • 1
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    The optical links of the ATLAS SemiConductor Tracker (2007)
    Institute of Physics
    Details
    Publication Date: 2007-09-06
    Electronic ISSN: 1748-0221
    Topics: Physics
    Published by Institute of Physics
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    The influence of cultivar and mechanical damage on the relationship between inoculum concentration of Phoma exigua var. foveata on potato tubers and gangrene development (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 37 (1988), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In an experiment to examine the influence of cultivar and tuber damage on the relationship between inoculum concentration and potato gangrene development, the extent to which cultivars differed in their response to increased inoculum concentration depended on the type of damage which the tubers received. There was considerable variation in cultivar response in terms of lesion frequency when tubers were inoculated by damaging them on a commercial grader, whereas when they were uniformly wounded or left undamaged cultivar differences were small. The relationship between the number of detectable wounds on tubers and gangrene incidence was not consistent for the three cultivars. Lesion size was shown to increase linearly with increasing concentrations of pycnidiospores when tubers of cultivars of different susceptibilities were point-inoculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1988.tb02072.x
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  • 3
    Electronic Resource
    Electronic Resource
    Inoculating plant material by jet injection (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 33 (1984), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Both tubers and plants of potato were successfully inoculated with Erwinia carotovora subsp. itroseptica by means of a needle-less medical jet injector. The instrument has also been used to infect potato tubers with Phorna exigua var. foveata, Fusarium solani var. coeruleum and F. sulphureum. It is suggested that high-pressure injection is a potentially useful tool for introducing pathogens into plant materials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1984.tb00588.x
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  • 4
    Electronic Resource
    Electronic Resource
    A comparison of methods to evaluate the susceptibility of potato cultivars to blackleg (caused by Erwinia carotovora subsp. atroseptica) in the field at different sites (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 40 (1991), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Potato seed tubers were inoculated either using a needle or using a high-pressure jet injector at a number of sites in the United Kingdom. Over 2 years, different cultivars showed different trends in blackleg symptoms. Comparisons with inoculation by infiltration of tubers under vacuum were made at two sites, and by damaging followed by dipping tubers in inoculum at one site. The relationship between plant vigour in July and yield was closer than that between blackleg symptoms and yield.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1991.tb02373.x
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  • 5
    Electronic Resource
    Electronic Resource
    Use of seedling progeny tests for genetical studies as part of a potato (Solanum tuberosum subsp. tuberosum) breeding programme (1995)
    Springer
    Theoretical and applied genetics 90 (1995), S. 899-905 
    Details
    ISSN: 1432-2242
    Keywords: Potato breeding ; Combining ability analysis ; Late blight ; White potato cyst nematode ; Breeders' visual preference ; Genotypic recurrent selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A diallel set of crosses, including selfs and some reciprocal crosses, was made between 15 parents chosen for their male fertility from those included in a tetraploid potato (Solanum tuberosum subsp. tuberosum) breeding programme at the Scottish Crop Research Institute. Seedling progeny tests were used to evaluate the progenies for non-race-specific resistance to late blight (Phytophthora infestans) in both foliage and tubers, quantitative resistance to the white potato cystnematode (PCN) (Globodera pallida) and the commercial worth of their tubers as judged by breeders' visual preference. No reciprocal differences were found. Comparisons of the selfs and crosses revealed inbreeding depression for breeders' preference, which varied among the parents from negligible to severe, whilst there were also statistically significant differences for foliage and tuber blight, but not for PCN. When the selfs were omitted from the combining ability analyses, large differences in general combining ability (GCA) were found for all four traits, and smaller differences in specific combining ability for tuber blight and breeders' preference. The only statistically significant correlation between GCAs for different traits was a favourable one of r = 0.56 between foliage and tuber resistance to late blight. It was concluded that prospects were good for simultaneously improving all four traits by multitrait genotypic recurrent selection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222029
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  • 6
    Electronic Resource
    Electronic Resource
    A rapid scoring technique for potato tuber disease assessment (1989)
    Springer
    Potato research 32 (1989), S. 353-357 
    Details
    ISSN: 1871-4528
    Keywords: dry rot ; gangrene ; common scab ; disease screening
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three methods of scoring disease severity were compared on potato tubers infected with either common scab, gangrene or dry rot. For each disease, replicated samples of infected tubers were taken of 12–14 cultivars representing a range of reaction from resistant to susceptible, and disease severity assessed by 1) estimating the proportion of the surface area affected by the disease, 2) calculating the percentage of tubers infected to a pre-determined amount, 3) an overall ‘glance score’ on a 1–9 scale of decreasing infection. The third method gave scores which correlated closely with the others, and since it is direct and simple to use, it has become the preferred method in disease screening tests at the Scottish Crop Research Institute.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357848
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  • 7
    Electronic Resource
    Electronic Resource
    Comparison of resistance toFusarium spp. of glasshouse-and field-grown tuber progenies of potato (1995)
    Springer
    Potato research 38 (1995), S. 345-351 
    Details
    ISSN: 1871-4528
    Keywords: disease screening ; progeny test ; Fusarium coeruleum ; Fusarium sulphureum ; Gibberella pulicaris ; Solanum tuberosum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field-grown tubers of 22 progenies ofSolanum tuberosum L. generated in a crossing programme involving seven parents differing in resistance toFusarium coeruleum Lib. ex Sacc. andF. sulphureum Schlect. (=F. sambucinum Fuckel, teleomorphGibberella pulicaris (Fr.) Sacc.) were wound-inoculated with a cornmeal + sand culture of each pathogen. Parental genotypes were also included. The mean lesion size of each progeny was compared in 2 years of tests, as well as with published data on glasshouse-grown tubers. ForF. coeruleum there was a high correlation between years as well as with the glasshouse data, but no such correlations were apparent withG. pulicaris. Furthermore, parental and GCA values, as well as progeny means and mid-parent scores, also correlated highly forF. coeruleum but not forG. pulicaris. Glasshouse-grown tubers of 11 wildSolanum spp. were also inoculated with both pathogens. Some resistance to one or other, or both, was apparent, particularly inS. chacoense.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357739
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  • 8
    Electronic Resource
    Electronic Resource
    A glasshouse progeny test for resistance to gangrene (Phoma foveata) (1990)
    Springer
    Potato research 33 (1990), S. 131-133 
    Details
    ISSN: 1871-4528
    Keywords: disease screening ; Phoma exigua var.foveata ; Solanum tuberosum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Tubers were obtained from 80 glasshouse-grown seedlings of each of twelve progenies, inoculated withPhoma foveata Foister, and the mean percentage of infected tubers recorded. There was a good correlation (r=0.798) between this assessment and that made previously on field-grown tubers of eleven of the progenies. A gangrene test on glasshouse-grown tubers is suggested as a more rapid means of identifying progenies with useful levels of resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02358138
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  • 9
    Electronic Resource
    Electronic Resource
    Susceptibility toPhytophthora infestans of field-and glass-house-grown potato tubers (1996)
    Springer
    Potato research 39 (1996), S. 283-288 
    Details
    ISSN: 1871-4528
    Keywords: Solanum tuberosum L. ; disease screening ; late blight
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Tests for resistance toPhytophthora infestans were done twice in each of 2 years on field- and glasshouse-grown tubers of ten cultivars. The cultivar rankings, were almost identical for the means of the four glasshouse tests and the means of the four field tests. However, for the field tests but not for the glasshouse tests there were cultivar x harvest date and cultivar x year interactions. It is concluded that resistance can be assessed on glasshouse-grown tubers and that such assessments should prove more consistent over years than those done on field-grown tubers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02360920
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  • 10
    Electronic Resource
    Electronic Resource
    Resistance to late blight in foliage (Phytophthora infestans) of potatoes assessed as true seedlings and as adult plants in the glasshouse (1983)
    Springer
    Potato research 26 (1983), S. 363-366 
    Details
    ISSN: 1871-4528
    Keywords: disease screening ; susceptibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary True seedlings from crosses designed to produce progenies having high levels of field resistance to late blight (Phytophthora infestans (Mont.) de Bary) were scored in lots of 25 in a glasshouse. The results agreed with assessments subsequently obtained from plants grown from tubers from the same progenies when screened as individual whole plants in the glasshouse. The resistance of seedlings of both resistant and susceptible progenies was assessed by inoculating them 3–8 weeks after sowing. All were highly susceptible when inoculated at 3 weeks but resistance increased from 3 to 6 weeks and differed little between 6 and 8 weeks. The seedling test appears to provide a valid screen for resistance at an early stage in a breeding programme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02356155
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