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  • 1
    Electronic Resource
    Electronic Resource
    Morphogenic cell and protoplast cultures of tritordeum
    Amsterdam : Elsevier
    Plant Science 88 (1993), S. 209-218 
    Details
    ISSN: 0168-9452
    Keywords: 2,4-D, 2,4-dichloroacetic acid ; BAP, benzyl amino purine ; cereals ; in vitro regeneration ; protoplasts ; tritordeum
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(93)90093-F
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hordeum chilense resistance to powdery mildew and its potential use in cereal breeding (1993)
    Springer
    Euphytica 67 (1993), S. 215-220 
    Details
    ISSN: 1573-5060
    Keywords: disease resistance ; Erysiphe graminis f. sp. tritici ; Erysiphe graminis f. sp. hordei ; Hordeum chilense ; intergeneric hybridization ; powdery mildew ; tritordeum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Hordeum chilense is a wild barley with high crossability with Triticum, Hordeum and Secale. Its amphiploid with wheat, tritordeum, has potential as a new crop. H. chilense is highly resistant to the powdery mildew diseases of both wheat and barley. Whereas tritordeum is resistant to barley powdery mildew, its reaction to wheat powdery mildew is similar to that of its wheat parent. However H. chilense contributes to a reduced density of mildew colonies. This quantitative resistance of tritordeum is diluted at higher ploidy levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00040623
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Reaction of tritordeum to Fusarium culmorum and Septoria nodorum (1996)
    Springer
    Euphytica 88 (1996), S. 165-174 
    Details
    ISSN: 1573-5060
    Keywords: wheat ; tritordeum ; Hordeum chilense ; Fusarium culmorum ; Septoria nodorum ; scab ; deoxynivalenol ; ergosterol ; resistance ; Triticum spp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Hordeum chilense is a wild barley extensively used in wide crosses in the Triticeae. It could be a valuable source of resistance to Fusarium culmorum and Septoria nodorum. Some H. chilense x Triticum spp. amphiploids, named tritordeums, were more resistant than the parental wheat line to these diseases, others were not. Average contents of ergosterol and deoxynivalenol (DON) suggested that resistance to colonization by Fusarium was the highest for Hordeum chilense, followed by tritordeum and wheat in decreasing order. In particular, the H. chilense genotypes H7 and H17 enhanced the wheat resistance to F. culmorum in its tritordeum offsprings. Resistance to S. nodorum in tritordeum was not associated with tall plant height. There is sufficient genetic variation for resistance to F. culmorum and S. nodorum among tritordeum to allow the breeding of lines combining short straw and resistance to both diseases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023887
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  • 4
    Electronic Resource
    Electronic Resource
    The reaction of x Tritordeum and its Triticum spp. and Hordeum chilense parents to rust diseases (1991)
    Springer
    Euphytica 54 (1991), S. 75-81 
    Details
    ISSN: 1573-5060
    Keywords: Puccinia recondita f. sp. tritici, Puccinia striiformis f. sp. tritici, Puccinia striiformis f. sp. hordei. Puccinia hordei ; yellow rust ; brown rust ; leaf rust ; stripe rust ; tritordeum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Hexaploid and octoploid tritordeums and their parents Hordeum chilense and Triticum spp. were screened for resistance to isolates of wheat and barley yellow and brown rusts. All H. chilense lines were highly resistant to both wheat and barley brown rust, few lines were susceptible to wheat yellow rust while susceptibility to barley yellow rust was common. In general the resistance of tritordeum is predominantly contributed by the wheat parent and apparently the genes for resistance in H. chilense are inhibited in their expression by the presence of the wheat genome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00145633
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  • 5
    Electronic Resource
    Electronic Resource
    A self-fertile trigeneric hybrid in the Triticeae involving Triticum, Hordeum, and Secale (1989)
    Springer
    Euphytica 42 (1989), S. 291-296 
    Details
    ISSN: 1573-5060
    Keywords: Triticum ; Hordeum ; Secale ; intergeneric hybrid ; triticale ; tritordeum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A self-fertile trigeneric hybrid in the Triticeae involving species from the Hordeum, Triticum and Secale genera has been produced. The trigeneric hybrid was obtained by crossing octoploid triticale (x Triticosecale Wittmack) with octoploid tritordeum (H. chilense × T. aestivum amphiploid). The trigeneric hybrid presented a genome constitution AABBDDRHch and 2n=8X=56 chromosomes. The cytogenetical analyses showed no chromosome instability nor homeologous pairing between Hordeum and Secale chromosomes. In the F2 generation the chromosome number ranged from 42 to 52. Within this range, the plants with smaller numbers of chromosomes were more frequent. A preferential transmission of rye chromosomes could be inferred.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00034467
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  • 6
    Electronic Resource
    Electronic Resource
    Genetic analysis of prolamins synthesised by the Hch genome and their effects on gluten strength in hexaploid tritordeum (1999)
    Springer
    Euphytica 107 (1999), S. 177-184 
    Details
    ISSN: 1573-5060
    Keywords: A-PAGE ; flour quality ; linkage ; SDS-PAGE ; tritordeum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Hexaploid tritordeum is an amphiploid derived from the cross between Hordeum chilense and durum wheat. This amphiploid has shown potential for bread making, which has been associated to the prolamins from H. chilense. The role of each prolamin subunit on the gluten strength in tritordeum has been evaluated. Advanced progenies from two hexaploid tritordeum crosses were analysed for prolamins composition and gluten strength. Six loci were found for the prolamins synthesised at the Hch genome, which showed significant effects on gluten strength. Although these tritordeum lines represent only a small proportion of the genetic variability available in the development programme for this new crop, a certain degree of variation for prolamins composition was detected. In fact, up to three allelic variants have been detected for some loci, which have shown different effect on gluten strength in tritordeum. Each of these six loci appeared on the same linkage group that corresponded to chromosome 1Hch. The search of new variants for these loci could be useful for tritordeum quality breeding and, using tritordeum as a bridge species, this genetic variability could be introgressed into bread wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003574213125
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