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  • Articles  (3)
  • Selection  (2)
  • Citrus  (1)
  • Springer  (3)
  • National Academy of Sciences
  • 1985-1989  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Is the Phytophthora citrophthora culture filtrate a reliable tool for the in vitro selection of resistant Citrus variants? (1986)
    Springer
    Theoretical and applied genetics 72 (1986), S. 569-574 
    Details
    ISSN: 1432-2242
    Keywords: Phytophthora citrophthora ; Citrus ; Culture-filtrate ; Indole acetic acid ; Protoplast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Nucellar calli from four Citrus cultivars with known resistance to the Phytophthora citrophthora pathogen were chosen as experimental material to test the pathogen's response to culture filtrate (CF). Sensitivity of the four calli to CF of the fungus was in reverse order to what is known on the susceptibility of the cultivars in vivo. Sensitivity of protoplasts derived from the same four calli to 2,4-dichlorophenoxyacetic acid (2,4-D) was in the same order as that of calli to CF. Protoplasts derived from calli selected for tolerance to CF showed a higher plating efficiency with increasing concentration of CF in the medium. TLC and GLC determinations showed the presence of indole acetic acid in the culture filtrate. Results indicate that CF of P. citrophthora cannot be used as a selection tool in vitro.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00289542
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  • 2
    Electronic Resource
    Electronic Resource
    Advances in salt tolerance (1987)
    Springer
    Plant and soil 99 (1987), S. 17-29 
    Details
    ISSN: 1573-5036
    Keywords: Cell culture ; Molecular biology ; Plant breeding ; Salinity ; Seawater ; Selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Advances in and prospects for the development of salt tolerant crops are discussed. The genetic approach to the salinity problem is fairly new, but research has become quite active in a short span of time. Difficulties and opportunities are outlined. Salinity varies spatially, temporally, qualitatively, and quantitatively. In addition, the responses of plants to salt stress vary during their life cycle. Selection and breeding, including the use of wide crosses, are considered the best short-term approaches to the development of salt tolerant crops, but the new biotechnological and molecular biological techniques will make increasingly important contributions. Cooperation is called for among soil and water scientists, agronomists, plant physiologists and biochemists, cytologists, and plant geneticists, breeders, and biotechnologists. Given such cooperation and adequate support for these endeavors, the potential for increasing productivity in salt-affected areas can be realized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370150
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  • 3
    Electronic Resource
    Electronic Resource
    Salt-tolerant crops: origins, development, and prospects of the concept (1985)
    Springer
    Plant and soil 89 (1985), S. 187-198 
    Details
    ISSN: 1573-5036
    Keywords: Breeding ; Genotypes ; Halophytes ; Saline water ; Salt-affected soils ; Selection ; Stress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The genetic approach to the problems posed by salt-affected soils and water,i.e., breeding crops resistant to salinity stress, is traced to two principal origins: the European ecological interest in halophytes, and the exigencies of growing crops in the arid and semi-arid lands of the American West. The point is made that breeding for resistance to salinity stress cannot be divorced from breeding for various other desirable traits of mineral plant nutrition and metabolism. A survey is conducted of the existing body of information on breeding for desiderata of mineral nutrition in general and salt tolerance in particular. The prospects of breeding crops for salt tolerance are discussed, with emphasis on a) its relation to breeding for resistance to other mineral stresses; b) field trials; c) collaboration between plant physiologists and geneticist-breeders; and d) extensive exploration of germplasm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02182242
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