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  • OCEANOGRAPHY  (1)
  • Protoplast fusion  (1)
  • Variegation  (1)
  • 1980-1984  (2)
  • 1970-1974
  • 1960-1964
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  • 1980-1984  (2)
  • 1970-1974
  • 1960-1964
Year
  • 1
    Electronic Resource
    Electronic Resource
    Genetic behavior of somatic hybrids in the genus Nicotiana: N. otophora + N. tabacum and N. sylvestris + N. tabacum (1983)
    Springer
    Theoretical and applied genetics 65 (1983), S. 93-101 
    Details
    ISSN: 1432-2242
    Keywords: Nicotiana ; Somatic hybrids ; Protoplast fusion ; Genetic variability ; Variegation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Somatic hybrids have been produced between N. tabacum and two closely related species in the genus Nicotiana, N. otophora and N. sylvestris, to evaluate interclonal variation and genetic behavior of these hybrids. As with the previously reported N. nesophila+ N. tabacum somatic hybrids, we have detected variation for morphological and isoenzyme characters between somatic hybrid clones, despite stability of chromosome number. One clone of N. sylvestris+N. tabacum was marked by variation in leaf spot frequency. The inheritance of this unstable trait was monitored through two sexual generations. Transmission of the Su gene marker was monitored in self-fertilized and back-crossed progeny of the N. sylvestris+N. tabacum somatic hybrids. Segregation ratios were similar to those previously reported for amphiploid N. sylvestris x N. tabacum sexual hybrids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264873
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Fitting of satellite and in-situ ocean surface temperatures Results for polymode during the winter of 1977-1978 (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: For the period considered, December 1977 through February 1978, bivariate Gaussian discriminant function cloud identification revealed that more than 93 percent of the 8-km resolution GOES infrared pixels were cloud contaminated. Cloud-free in-situ calibration points were distributed in nonrandom groups; this resulted in systematic errors when using least squares techniques. Surfaces and regression lines were least squares fitted between satellite and in-situ data; use was also made of differences and ratios. The best results were achieved with a regression in the form of the infrared radiative transfer equation; but this was no better than + or - 0.9 K. Because of extensive cloudiness, the linear regressions were seldom useful, and temperature ratios with + or - 1.3 K experimental errors best represent the applicability of GEOS data to sea surface temperatures.
    Keywords: OCEANOGRAPHY
    Type: Journal of Geophysical Research (ISSN 0148-0227); 88; 9605-961
    Format: text
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    NASA TECHNICAL REPORTS
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