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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
    Assessing potato tubers for susceptibility to bacterial soft rot (erwinia carotovora subsp.atroseptica) (1981)
    Springer
    Potato research 24 (1981), S. 409-415 
    Details
    ISSN: 1871-4528
    Keywords: disease screening
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Es wird eine Methode zur Erfassung der Anfälligkeit von Knollen für Nassfäule beschrieben. In zehn Knollen jeder Sorte wird ein Loch gebohrt, 5 mm weit und 10 mm tief, und eine Suspension vonErwinia carotovora subsp.asroseptica, enthaltend 6–7×103 Zellen cm−3, hineingegeben. Die Knollen werden gewogen, in Plastikbehälter gelegt, mit Stickstoff begast und während 5 Tagen bei 25°C bebrütet. Das verfaulte Gewebe wird dann ausgewaschen und die Knollen gewogen. Der zeitliche Verlauf des Gewebezerfalls durchE. carotovora subsp.atroseptica bei Pentland Javelin und Stormont Enterprise ist in Abb. 1 dargestellt. Die Rangpositionen von zehn Sorten, die 1979/80 und 1980/81 getestet wurden, stimmten im allgemeinen gut überein (Tabelle 1). Neunzehn Sorten wurden 1980/81 dreimal untersucht (Tabelle 2): Stormont Enterprise und Pentland Ivory waren die resistentesten, und Dunbar Standard, Majestic und Suttons' Foremost die anfälligsten.
    Abstract: Résumé Une méthode d'évaluation de la sensibilité des tubercules à la pourriture molle est décrite. Une suspension d'Erwinia carotovora subsp.atroseptica contenant 6–7×103 cellules par cm3 est placée dans une cavité de 5 mm creusée sur 10 mm de profondeur dans dix tubercules de chaque variété étudiée. Les tubercules sont pesés, placés dans des bacs en plastique, gazés au nitrogène et incubés pendant 5 jours à 25°C. Les tissus pourris sont alors extraits par lavage et les tubercules sont pesés. La durée de désintégration des tissus parE. carotovora subsp.atroseptica pour Pentland Javelin et Stormont Enterprise est montrée dans la figure 1. Les classements des dix variétés expérimentées en 1979/80 et 1980/81 étaient en bonne concordance (tableau 1). Neuf variétés ont été testées en trois occasions en 1980/81 (tableau 2): Stormont Enterprise et Pentland Ivory étaient les plus résistantes, Dunbar Standard, Majestic et Suttons' Foremost les plus sensibles.
    Notes: Summary A laboratory method is described of assessing the susceptibility of tubers to soft rot (Erwinia carotovora subsp.atroseptica). A bacterial suspension is placed in a hole drilled into the tuber cortex, the weighed tubers are placed in damp airtight boxes that are then gassed with nitrogen and incubated for 5 days at 25°C. The rotted tissue is washed out and the tubers weighed. The rank positions of ten cultivars tested in two successive seasons were in general agreement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357323
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  • 7
    Electronic Resource
    Electronic Resource
    The susceptibility of potato cultivars to gangrene in laboratory tests in relation to origin of tubers, damage, method of inoculation and test centre (1989)
    Springer
    Potato research 32 (1989), S. 301-309 
    Details
    ISSN: 1871-4528
    Keywords: Phoma foveata Foister ; disease resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Undamaged and damaged tubers of 10 cultivars were inoculated withPhoma foveata by two methods at five test centres over three years. Damaging tubers before inoculation increased the discrimination between cultivars. While this increase was small with tubers rolled in cornmealsand cultures, it was often substantial with those dipped in a suspension of comminuted agar cultures. Correlations between centres for the four tests were significant (P〈0.05) and were highest for tubers inoculated with cornmeal-sand with or without damage. The gangrene scores of the cultivars in the four tests were correlated (P〈0.05) with their field susceptibility ratings but there was a strong interaction between cultivar reaction and year of test. When tubers grown in Cumbria and Midlothian were tested at one centre over two years, the gangrene scores were also correlated (P〈0.05).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357842
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  • 8
    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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  • 9
    Electronic Resource
    Electronic Resource
    Comparative susceptibility of some potato cultivars to dry rot caused byFusarium sulphureum andF. solani var.coeruleum (1989)
    Springer
    Potato research 32 (1989), S. 49-55 
    Details
    ISSN: 1871-4528
    Keywords: disease screening ; F. roseum var.sambucinum ; resistant cultivars ; tuber inoculation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The susceptibility of 15 potato cultivars to dry rot caused byFusarium sulphureum andf. solani var.coeruleum was examined over 8 years. Tubers were wounded, inoculated, incubated at 10°C for 7–8 weeks and the size of the rot assessed.F. sulphureum was the more aggressive species. There was little correlation between the rank order of susceptibility of the cultivars to the two pathogens, but a higly significant correlation between years. Two years' tests are deemed sufficient to assess susceptibility to both species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02365816
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  • 10
    Electronic Resource
    Electronic Resource
    Inheritance of resistance to late blight in foliage and tubers of progenies from parents differing in resistance (1992)
    Springer
    Potato research 35 (1992), S. 313-319 
    Details
    ISSN: 1871-4528
    Keywords: Phytophthora infestans ; Solanum tuberosum L. ; progeny test ; disease screening ; inheritance ; general combining ability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary TenSolanum tuberosum genotypes differing in resistance to late blight (Phytophthora infestans (Mont.) de Bary) in foliage and tubers were intercrossed to determine the inheritance of disease resistance in their progenies. Plots of 10–15 clones per progeny were established in each of 2 years and resistance assessed by field or laboratory tests. The parental genotypes were similarly tested each year. The parents differed in general combining ability (GCA) for both foliage blight (FB) and tuber blight (TB). The parental and GCA scores were significantly correlated for both aspects of the disease, but the correlations between foliage and tuber scores for parents and for GCAs were not significant. Three parental genotypes were highly resistant in both foliage and tubers, and the genotype with the highest GCA for resistance to both FB and TB (cv. stirling) is recommended as the best parent. There was no evidence of strong genetic correlation between both aspects of resistance, and it is suggested that both be selected for in a breeding programme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357712
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