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  • 1995-1999
  • 1990-1994  (6)
  • 1992  (6)
  • 1
    Electronic Resource
    Electronic Resource
    Genetic Analysis of Resistance to Xanthomonas campestris pv. oryzae (Ishiyama) Dye in a Rice Breeding Line ARC 10464 (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 108 (1992), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The genetics of resistance to three Indian pathotypes of Xanthomonas campestris pv. oryzae, namely, IX01, IX08 and IX09, was studied in a landrace of Indica rice ‘ARC 10464’. Resistance to each of the two pathotypes IX01 and IX09 was governed by two independently-inherited dominant genes while a single dominant gene was operative against patho-type 1X08. The joint segregation tests conducted on F2 plant progenies (F3 families) using pathotypes IX01, IX08 and IX09 suggested that the gene/(s) effective against each of the pathotypes are different.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1992.tb00141.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Biotinylated DNA probes for detecting virus Y and aucuba mosaic virus in leaves and dormant tubers of potato (1992)
    Springer
    Potato research 35 (1992), S. 173-182 
    Details
    ISSN: 1871-4528
    Keywords: non-radioactive probes ; RNA or DNA hybridization ; ELISA ; potato virus Y ; potato aucuba mosaic virus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Detection of potato virus Y (PVY) in dormant potato tubers using the enzyme-linked immunosorbent assay (ELISA) has been reported not to be accurate and reliable and it requires breaking of the dormancy of tubers prior to testing. We describe a simple, practical and highly sensitive hybridization method based on the use of biotinylated DNA probes for detecting PVY and potato aucuba mosaic virus (PAMV) in dilutions made of crude extracts of infected potato leaves and dormant tubers. As little as 50 fg of RNA can be detected by this method, and the probes are highly specific for their targets, even in crude plant extracts. The presence of one virus did not interfere with the detection of the other.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02357611
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Electrical conduction and ultrasound wave propagation in particulate and short fiber composites of PVC. II: PVC-Al coated glass fiber composites (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 93-100 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Poly(vinylch1oride) composites containing 2 to 20 wt% of aluminum coated glass fiber (AlCGF) were prepared by the mechanical mixing and hot compression technique. Their electrical conduction and ultrasound wave propagation at frequencies of 2 to 9 MHz were studied. The electrical resistivity of these composites was lowered because of fiber-fiber contact formation, which is evident from optical photomicrographs of the composites. Other morphological investigations, such as X-ray diffraction and DTA, show matrix-filler interaction. The limiting resistivity of PVC/AlCGF composite is 10 ohm-cm at 14 wt% (8.11 vol%) of fiber concentration. Ultrasound wave propagation through these composites having fiber-fiber contacts has shown that both absorption and velocity are high at 9 MHz. Other ultrasound parameters were studied, such as excess absorption, relative velocity, relative modulus variation with composition as well as with propagation constant. No definite correlation exists between electrical conduction due to fiber-fiber contact formation and ultrasound wave propagation.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140210
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Investigation of multiphase polymeric systems of poly(vinyl chloride)/ethylene-propylene-diene-gp-(styrene-CO-acrylonitrile) blends (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 218-225 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The graft copolymer, ethylene-propylene-diene rubber (EPDM)-gp-(styrene-co-acrylonitrile) has been synthesized by solution precipitation polymerization using benzoyl perixide as initiator. The graft copolymer has been characterized after separation through soxhlet extraction by IR, NMR, and elemental analysis techniques. The graft copolymer of EPDM is melt blended with PVC. The nature of compatibility of the graft copolymers with PVC has been studied by means of morphological analysis and by thermal analysis. The mechanical properties, Izod impact strength, tensile strength, and flexural modulus of the blends are extensively studied over the wide range of concentrations. The results of both compatibility and mechanical properties are compared with those of PVC/EPDM blends. The nature of compatibility obtained shows that PVC/EPDM blends are incompatible and the PVC/EPDM-gp-SAN system is semicompatible. Also, these results indicate that the PVC/EPDM-gp-SAN system has its highest impact strength at 14 wt% of EPDM/gp-SAN graft copolymer. The fractured surface analysis of the impact fractured samples is also undertaken by an SEM technique. The results of the mechanical properties are discussed in view of existing theories of impact modification, along with the morphological feature of fractographs.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140411
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Electrical conduction and ultrasound wave propagation in particulate and short fiber composites of PVC. I: PVC-cu/al particulate composites (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 33-42 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Poly(vinylchloride) compositions containing 0-24 v% of copper and 0-48 v% of aluminium powders were prepared and their d.c. electrical conduction and ultrasound wave propagation at 2, 3, 6, 9 MHz were studied. Segregated network formation by the filler as evident by photomicrograph. DTA and X-ray diffraction, drastically reduces the electrical resistivity in these composites. The limiting resistivity of PVC/Cu composite is 31.62 ohm-cm and that of PVC/Al composites is 1258 ohm-cm. Ultrasound wave propagation through these composites having segregated network of fillers shows that absorption at 9 MHz is more in copper filled PVC than in aluminium filled PVC. Dispersion at 9 MHz is more in aluminium filled composites than in copper filled composites. Other parameters, such as excess absorption, relative velocity, relative modulus were evaluated. No definite correlation exists between electrical conduction due to segregated network formation and ultrasound wave propagation.
    Additional Material: 25 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140110
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Investigation of multiphase polymeric systems of PVC (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 62-68 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Graft copolymers of chlororubber-20-g-(ethylacrylate-co-acrylonitrile (2:1)) and chlororubber-20-g-(styrene-co-vinyl acetate-co-acrylonitrile [1:1:1]) have been synthesized by solution precipitation polymerization technique. The graft copolymers have been characterized by elemental analysis, IR spectroscopy, and viscometry. The graft copolymers have been melt blended with PVC. The mechanical properties, such as flexural, tensile strength, and impact strength, of the blends have been studied to evaluate the relative performance of various graft copolymer blends of PVC as impact modified systems. Mechanical properties of the blends have been discussed in terms of morphology of impact fractured samples.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140204
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    Paper (German National Licenses)
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