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  • 1
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    Unknown
    Bok-bok-staan-styf hoeveel Vingers op jou Lyf? (1961)
    Cape Town : Periodicals Archive Online (PAO)
    Acta classica. 4 (1961) 113 
    Details
    ISSN: 0065-1141
    Topics: Linguistics and Literary Studies
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:g615-1961-004-00-000010
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  • 2
    Electronic Resource
    Electronic Resource
    Dalitz plot density analysis in K"μ"3^+ decay
    Amsterdam : Elsevier
    Physics Letters B 29 (1969), S. 691-695 
    Details
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0370-2693(69)90113-0
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  • 3
    Electronic Resource
    Electronic Resource
    Starch-degrading enzymes from anaerobic non-clostridial bacteria (1990)
    Springer
    Applied microbiology and biotechnology 33 (1990), S. 602-606 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary A number of meso- and thermophilic anaerobic starch-degrading non-spore-forming bacteria have been isolated. All the isolates belonging to different genera are strictly anaerobic, as indicated by a catalase-negative reaction, and produce soluble starch-degrading enzymes. Compared to enzymes of aerobic bacteria, those of anaerobic origin mainly show low molecular mass of about 25 000 daltons. Some of the enzymes may have useful applications in the starch industry because of their unusual product pattern, yielding maltotetraose as the main hydrolysis product.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00172559
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Synergy of cymoxanil and mancozeb when used to control potato late blight (1996)
    Springer
    Potato research 39 (1996), S. 551-559 
    Details
    ISSN: 1871-4528
    Keywords: fungicides ; Phytophthora infestans ; Solanum tuberosum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Synergism between fungicides could be used to reduce the application dosage. Synergism between cymoxanil and mancozeb was studied using potted potato plants under field conditions. In three experiments the preventive efficacy of the fungicides and fungicide mixtures in the treatments were studied using a bio-assay. Potato plants were sprayed with the fungicides or fungicide mixtures. Leaves were picked from the potato plants with regular intervals after fungicide application. The efficacy of the fungicides was studied in a bioassay by inoculating the leaves withPhytophthora infestans zoosporangia. The Abbot method was used to show synergistic effects of the cymoxanil/mancozeb mixtures tested. In two of three experiments synergy of the fungicide mixtures was found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02358474
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of rain on efficacy of fungicide deposits on potato againstPhytophthora infestans (1996)
    Springer
    Potato research 39 (1996), S. 541-550 
    Details
    ISSN: 1871-4528
    Keywords: late blight ; fluazinam ; maneb-fentinacetate ; rainfastness ; Solanum tuberosum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The influence of the intensity of rain and the interval between application of fungicides and the onset of rain on the efficacy of maneb-fentinacetate and fluazinam againstPhytophthora infestans in potato was evaluated in pot trials and field trials. In the pot trials a clear wash-off of maneb-fentinacetate was observed when simulated rain was applied 4 hours after plants had been sprayed with the fungicide. The retention of fluazinam deposits was higher and in some trials the efficacy in the bioassay was even increased by rain, probably by redistribution from the spray deposits. When 10 mm of simulated rain was applied 4–6 days after application of the fungicides, no decrease in the efficacy was observed with both fungicides. In the field trials fluazinam also showed a better retention of deposits compared with maneb-fentinacetate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02358473
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  • 6
    Electronic Resource
    Electronic Resource
    Decreased sensitivity of Sphaerotheca fuliginea to fungicides which inhibit ergosterol biosynthesis (1983)
    Springer
    European journal of plant pathology 89 (1983), S. 185-187 
    Details
    ISSN: 1573-8469
    Keywords: bitertanol ; fenarimol ; imazalil ; triforine ; cucumber powdery mildew ; fungicide resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Samenvatting Isolaten vanSphaerotheca fuliginea uit Nederland en Israel vertoonden een verminderde gevoeligheid voor de ergosterolbiosynthese remmers bitertanol, fenarimol, imazalil en triforine. In enkele gevallen heeft dit reeds geleid tot het falen van de bestrijding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01999846
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  • 7
    Electronic Resource
    Electronic Resource
    Fitness of isolates of Sphaerotheca fuliginea resistant or sensitive to fungicides which inhibit ergosterol biosynthesis (1985)
    Springer
    European journal of plant pathology 91 (1985), S. 65-76 
    Details
    ISSN: 1573-8469
    Keywords: cucumber powdery mildew ; bitertanol ; fenarimol ; imazalil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting Uit kassen in Nederland waren isolaten vanSphaerotheca fuliginea verzameld, die resistent waren tegen fungiciden die de ergosterol-biosynthese remmen (EBR's: bitertanol, fenarimol, imazalil). De ‘fitness’ van deze isolaten werd vergeleken met die van isolaten met een wild-type gevoeligheid voor EBR's. De volgende ‘fitness’-parameters werden bestudeerd: sporekieming, groei van kiembuizen en mycelium, penetratie, sporulatie en competitievermogen. In een proef, waarin 10 EBR-resistente isolaten werden vergeleken met 7 wild-type isolaten, waren één of meer ‘fitness’-parameters iets lager dan die van de wild-type isolaten. Binnen de groep van de resistente isolaten bestond geen relatie tussen de mate van resistentie tegen EBR's en de waarden van de ‘fitness’-parameters. In een proef met iets minder isolaten maar met meer herhalingen in de tijd, werden geen verschillen in ‘fitness’ waargenomen tussen de EBR-resistente en wild-type isolaten. In competitieproeven waarin een epidemie zich kon ontwikkelen, concurreerden de resistente isolaten goed met het wild-type isolaat. Er wordt geconcludeerd dat de hypothese dat resistentie tegen EBR's in de praktijk waarschijnlijk niet zou optreden vanwege een verminderde ‘fitness” van de EBR-resistente isolaten, niet van toepassing is opS. fuliginea.
    Notes: Abstract Isolates ofSphaerotheca fuliginea resistant to fungicides which inhibit ergosterol biosynthesis (EBIs: bitertanol, fenarimol, imazalil) had been collected from glasshouses in the Netherlands. Fitness of these isolates was compared to that of isolates with a wild-type sensitivity to EBIs. Fitness parameters studied were germination of conidia, growth of germ tubes and mycelium, penetration, sporulation and competitive ability. In an experiment in which 10 EBI-resistant isolates were compared to 7 wild-type isolates, one or more values of fitness parameters for EBI-resistant isolates were slightly lower than those for the wild-type isolates. However, within the group of resistant isolates no relation existed between the degree of resistance to EBIs and the degree of fitness. In an experiment with fewer isolates but with more replicates, differences in fitness between EBI-resistant and wild-type isolates were not detected over a three-month period. In competition experiments in which no crowding was present, resistant isolates competed well with the wild-type isolate. It is concluded that the hypothesis that resistance to EBIs is unlikely to develop under practical conditions because of decreased fitness of EBI-resistant strains, does not seem to hold forS. fuliginea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01974302
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  • 8
    Electronic Resource
    Electronic Resource
    Changes during a three-year period in the sensitivity to ergosterol biosynthesis inhibitors of Sphaerotheca fuliginea in the Netherlands (1985)
    Springer
    European journal of plant pathology 91 (1985), S. 105-118 
    Details
    ISSN: 1573-8469
    Keywords: cucumber powdery mildew ; fungicide resistance ; fenarimol ; imazalil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting Uit komkommerkassen in Nederland werden gedurende de periode 1981–1984 isolaten vanSphaerotheca fuliginea verzameld. De gevoeligheid van deze isolaten voor fenarimol en imazalil, twee ergosterolbiosyntheseremmers (EBR's), werd getest. De gegevens verzameld in 1981 wijzen erop dat de gevoeligheid voor EBR's lager was dan die van referentie-isolaten. In 1982 en 1983 daalde de gevoeligheid voor EBR's nog verder. In 1984 werden gegevens verzameld tot en met juli. Er werd geen significant verschil in gevoeligheid waargenomen met het niveau van 1983. Isolaten verzameld in Limburg, waar EBR's minder vaak toegepast worden dan in Pijnacker, hadden een significant hogere gevoeligheid voor EBR's dan isolaten uit Pijnacker. Naast verschillen in gevoeligheid voor EBR's tussen jaren, werden ook verschillen binnen de jaren waargenomen. In het begin van het groeiseizoen in 1983, voordat fungiciden waren gebruikt, was de gevoeligheid voor fenarimol en imazalil hoger dan later in het groeiseizoen. In het algemeen hadden de veranderingen in gevoeligheid voor EBR's geen volledig falen van de bestrijding tot gevolg. In de meeste gevallen was een verkorting van de intervallen tussen de toepassingen van fenarimol en imazalil voldoende om te compenseren voor de verminderde gevoeligheid en om een goede bestrijding te verkrijgen. De resultaten benadrukken nogmaals de noodzaak om strategieën te ontwerpen die resistentie tegen EBR's voorkomen.
    Notes: Abstract Isolates ofSphaerotheca fuliginea colleeted in 1981–1984 in cucumber giasshouses in the Netherlands were tested for their sensitivity to the ergosterol biosynthesis inhibitors (EBIs) fenarimol and imazalil. The data collected in the 1981 survey indicated that sensitivity to EBIs was lower than that of reference isolates. In the 1982 and 1983 surveys, sensitivity to EBIs continued to decrease. In 1984, data were collected until July; no significant difference in sensitivity with the 1983 level was apparent. Isolates collected in the district of Limburg, where EBIs were applied less frequently than in the district of Pijnacker, showed a significantly higher sensitivity to EBIs than isolates collected in Pijnacker. Besides differences in sensitivity to EBIs between years, differences within years were noticed. In 1983, the sensitivity to fenarimol and imazalil was significantly higher in the beginning of the growing season, before any fungicides were applied, than later in the growing season. Generally, changes in sensitivity to EBIs did not result in full failure of control. In most cases, a change to shorter spray intervals has been sufficient to compensate for the decrease in sensitivity and to achieve proper control by fenarimol and imazalil. The results once more emphasize the necessity of designing strategies to prevent resistance to EBIs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01976385
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  • 9
    Electronic Resource
    Electronic Resource
    A pattern in the appearance of cucumber powdery mildew in Dutch glasshouses (1984)
    Springer
    European journal of plant pathology 90 (1984), S. 247-256 
    Details
    ISSN: 1573-8469
    Keywords: Cucumis sativus ; Sphaerotheca fuliginea ; dispersal ; survival
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting In 1982, 1983 en 1984 werd een enquête gehouden om informatie te verzamelen over de overleving en verspreiding van komkommermeeldauw. Tuinders die hun gewas geplant hadden in december, januari of februari werd gevraagd wanneer ze de eerste meeldauw hadden waargenomen. Een geleidelijke toename van het aantal geïnfecteerde gewassen werd waargenomen vanaf het planten tot aan mei. Geïnfecteerde gewassen werden voor het eerst waargenomen direct na het planten. De weeknummers van de eerste meeldauwwaarnemingen, de ziekte-vrije perioden en de snelheden waarmee het aantal geïnfecteerde gewassen toenam, werden berekend voor verschillende districten. In het district met de grootste gewasdichtheid (Pijnacker) werd de meeldauw over het algemeen vroeg in het groeiseizoen waargenomen, terwijl de snelheid waarmee het aantal geïnfecteerde gewassen toenam hoger was dan in andere districten. In het district met de laagste gewasdichtheid (Noord Nederland) werd de meeldauw laat in het seizoen waargenomen en was de snelheid waarmee het aantal geïnfecteerde gewassen toenam laag. Mogelijke manieren van overleving en verspreiding van inoculum worden besproken. Er wordt gesuggereerd dat het overwinteren van inoculum mogelijk is, doordat komkommerplanten het gehele jaar aanwezig zijn. De verspreiding van komkommermeeldauw zou plaats kunnen vinden door het vervoer van geïnfecteerd plantmateriaal, bezoekers en wind.
    Notes: Abstract An inquiry was held in 1982, 1983 and 1984 to collect information on the survival and dispersal of cucumber powdery mildew. Growers who planted a crop in December, January or February were asked when they observed mildew for the first time in their crop. A gradual increase in the number of infected crops was observed from planting until May. The earliest observations of infected crops were immediately after planting. The weeks of the first observation of mildew, the disease-free periods and the apparent rates of increase of infected crops are presented for various districts. In the districts with the highest crop density (Pijnacker), mildew was generally observed early in the growing season, while the apparent rate of increase of infected crops was higher than in other districts. In the district with the lowest crop density (Northern Netherlands), mildew was observed late in the growing season and the apparent rate of increase of infected crops was low. Possible means of survival and dispersal of inoculum are discussed. It is suggested that overwintering of inoculum is possible because cucumber plants are grown all year round. Dispersal of cucumber powdery mildew is suggested to take place by transportation of infected planting stock, visitors and wind.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01976383
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Persistence of resistance to fungicides in Sphaerotheca fuliginea (1984)
    Springer
    European journal of plant pathology 90 (1984), S. 165-171 
    Details
    ISSN: 1573-8469
    Keywords: cucumber powdery mildew ; benomyl ; carbendazim ; dimethirimol ; dinocap ; pyrazophos
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting De gevoeligheid voor twee benzimidazool-fungiciden en dimethirimol, dinocap en pyrazofos werd getoetst vanSphaerotheca fuliginea isolaten die in 1981–1983 verzameld waren in komkommerkassen in Nederland. Resistentie tegen dinocap werd niet waargenomen, ofschoon dit fungicide al meer dan 30 jaar wordt gebruikt. De resistentie tegen benzimidazool-fungiciden en dimethirimol, die meer dan 10 jaar geleden werden teruggetrokken voor de bestrijding vanS. fuliginea, was persistent. Hoewel pyrazofos slechts incidenteel gebruikt is sinds 1977, is het resistentieniveau niet teruggelopen. Factoren die mogelijk betrokken zijn bij de persistentie van resistentie en de gevolgen voor de ziektebestrijding worden besproken.
    Notes: Abstract Isolates ofSphaerotheca fuliginea collected in 1981–1983 in cucumber glasshouses in the Netherlands were tested for their sensitivity to benzimidazole fungicides, dimethirimol, dinocap and pyrazophos. Resistance to dinocap was not observed, although this fungicide has been used for over 30 years. Resistance to benzimidazole fungicides and dimethirimol has been persistent since these fungicides were withdrawn for control of cucumber powdery mildew more than 10 years ago. Although pyrazophos has only been used incidentally after 1977, the level of resistance has not decreased. Factors possibly involved in the persistence of resistance and implications for disease control in practice are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02006480
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