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  • 1
    Electronic Resource
    Electronic Resource
    Tritipyrum, a potential new salt-tolerant cereal (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 116 (1997), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Salt-affected soil is a major world-wide problem with many hectares of land lost to cultivation each year .To combat this problem, the development and assessment of a novel salt tolerant cereal, tritipyrum, was carried out. This is a hybrid between wheat and Thinopyrum bessarabicum. a very salt-tolerant member of the Triticeae.A range of tritipyrums derived from crosses between tetraploid wheat, Triticum durum, and Th. bessarabicum was produced. Although meiosis in ihe tritipyrums was generally regular, chromosome pairing failure was observed in each of the genotypes. In addition, the level of fertility was relatively low, the fertility of bagged spikes ranging from 29% to 51%. One iritipyrum produced multiple seeds in some florets. Three tritipyrums selected at random performed better than their wheat parents in hydroculture experiments in each of three treatments (150, 200 and 250 mol/ m3 Nacl). The potential for the exploitation of tritipyrum in salt-affected soils is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1997.tb02166.x
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  • 2
    Electronic Resource
    Electronic Resource
    An assessment of the salt tolerance of wheat/Thinopyrum bessarabicum 5Eb addition and substitution lines (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 115 (1996), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Lines of Triticum aestivum cv. Chinese Spring carrying an additional chromosome 5Eb from Thinopyrum bessarabicum or having chromosome 5A or 5D replaced by chromosome 5Eb were screened in hydroculture for tolerance to salt. The previously reported tolerance of the 5Eb addition line was confirmed and the two substitution lines were shown to have a higher level of survival in 175 mol/m3 NaCl than both the addition and the ‘Chinese Spring’ parent. Reasons for the better tolerance of the substitutions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1996.tb00876.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    An assessment of the potential of 4DS.4DL-4s l L translocation lines as a means of eliminating tall off types in semi-dwarf wheat varieties (1996)
    Springer
    Euphytica 89 (1996), S. 103-106 
    Details
    ISSN: 1573-5060
    Keywords: Aneuploidy ; dwarfing genes ; Triticum aestivum ; preferential transmission ; Aegilops sharonensis ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Wheat varieties tend to be chromosomally unstable producing on average 2–3% of plants with abnormal chromosome numbers. A number of semi dwarf wheat varieties, carrying the gibberellic acid insensitive dwarfing genes Rht1 or Rht2, have been seen to produce distinct tall off types due to reduction in dosage of the chromosome carrying the dwarfing gene. The UK variety ‘Brigand’, carrying Rht2 on chromosome 4D, produced very distinct tall off types when this chromosome was reduced in dosage. The frequency of tall off types was sufficiently high to cause the variety to fail United Kingdom statutory uniformity tests. An attempt to prevent the loss of chromosome 4D was made by constructing translocation chromosomes involving the short arm of chromosome 4D, which carries Rht2, and the long arm of chromosome 4S l from Aegilops sharonensis, which carries a gene(s) conferring preferential transmission. The work in this paper describes the field evaluation of two lines carrying 4DS.4DL-4S l L translocations, and demonstrates their success in preventing spontaneously occurring monosomy of chromosome 4D in semi-dwarf wheats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015726
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    Paper (German National Licenses)
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