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  • 1
    Electronic Resource
    Electronic Resource
    Mapping loci associated with flour colour in wheat (Triticum aestivum L.) (1998)
    Springer
    Theoretical and applied genetics 97 (1998), S. 238-245 
    Details
    ISSN: 1432-2242
    Keywords: Key words Wheat ; Flour colour ; QTL mapping ; RFLP ; AFLP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  An RFLP map constructed using 150 single seed descent (SSD) lines from a cross between two hexaploid wheat varieties (‘Schomburgk’בYarralinka’) was used to identify loci controlling flour colour. Flour colour data were obtained from field trials conducted over two seasons at different sites. The estimated heritability of this trait was calculated as 0.67. Two regions identified in the preliminary analysis on chromosomes 3A and 7A, accounted for 13% and 60% of the genetic variation respectively. A detailed analysis of the major locus on 7A was conducted through fine mapping of AFLP markers identified using bulked segregant analysis (BSA). Seven additional markers were identified by the BSA and mapped to the region of the 7A locus. The applicability of these markers to identify wheat lines with enhanced flour colour is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050891
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    Paper (German National Licenses)
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  • 2
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    Propagation directions of hydromagnetic waves in interplanetary space - Pioneer 10 and 11 (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The real and imaginary parts of spectral matrices of magnetic field fluctuations near 4 and 5 AU are used separately to generate estimates of hydromagnetic wave normal directions over the frequency range 0.00001 to 0.01 Hz in the spacecraft frame. Both procedures suggest the predominance of the Alfven mode over the fast and slow MHD modes among transverse magnetic field perturbations. Both procedures also show that the Alfven mode is more common among transverse perturbations at 4 AU than at 5 AU. Statistical techniques are for estimating uncertainties in computed wave normal directions and it is concluded that the real parts of the spectral matrices are more useful than the imaginary parts in specifying wave normals at times of magnetic quiet in the solar wind near 4 and 5 AU.
    Keywords: ASTROPHYSICS
    Type: Journal of Geophysical Research; 85; Aug. 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Microstructure of the interplanetary magnetic field near 4 and 5 AU (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Interplanetary magnetic field fluctuations near 4 and 5 AU are investigated on the basis of Pioneer 10 and 11 vector magnetic field measurements in order to identify extant wave modes and propagation directions as functions of frequency in the range 0.00004 to 0.009 Hz. Analysis of the approximately 500 spectral matrices as functions of frequency obtained from each spacecraft indicates the distributions of maximum variance directions to be peaked along the normal to the plane of the minimum variance direction and the mean magnetic field, as would be expected for a planar, small-amplitude Alfven wave with a minimum variance direction close to the wave vector. It is thus inferred that single small-amplitude Alfven waves are occasionally present in the temporal and frequency bands analyzed, however waves with wave vectors not well approximated by the minimum variance direction, Alfven wave ensembles, finite-amplitude waves and nonplanar fluctuations may also be present. Observations are also noted to suggest the predominance of the Alfven mode over the fast and slow modes, however do not support theoretical models of outward propagating plane Alfven waves of solar origin.
    Keywords: ASTROPHYSICS
    Type: Journal of Geophysical Research; 85; Aug. 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    The spiral structure of the interplanetary magnetic field (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The Pioneer 10 data concerning the heliocentric radial variation of the interplanetary magnetic field are examined. Incorporating the systematic increase in solar wind velocity observed during the mission leads to much improved agreement between the usual Parker Archimedean spiral and the data. The effects of correlations between short-period fluctuations of speed and azimuthal field are discussed. It is concluded that during the period under study they did not substantially affect the average magnetic field.
    Keywords: ASTROPHYSICS
    Type: Geophysical Research Letters; 3; Sept
    Format: text
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    NASA TECHNICAL REPORTS
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