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  • 1
    Digitale Medien
    Digitale Medien
    Identification in Aegilops species of resistant sources to Hessian fly (Diptera: Cecidomyiidae) in Morocco (1998)
    Springer
    Genetic resources and crop evolution 45 (1998), S. 343-345 
    Details
    ISSN: 1573-5109
    Schlagwort(e): Aegilops ; antibiosis ; Mayetiola destructor ; Morocco ; resistance
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Hessian fly, Mayetiola destructor (Say), is the major insect pest of wheat in Morocco. Host plant resistance has been the most effective and practical method of controlling this pest. When 347 accessions of Aegilops species were screened in the greenhouse for resistance to Hessian fly, several accessions of Ae. geniculata Roth, Ae. triuncialis L., Ae. neglecta Req.ex Bertol., Ae. ventricosa Tausch, Ae. cylindrica Host and Ae. markgrafii (Greuter) Hammer showed resistance reaction. All expressed antibiosis as the mechanism of resistance against first instar Hessian fly larvae. These Aegilops sources of resistance could be exploited for transferring Hessian fly resistance to wheat.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1008675029389
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    First source of resistance in durum wheat to Hessian fly (Diptera: Cecidomyiidae) in Morocco (1999)
    Springer
    Genetic resources and crop evolution 46 (1999), S. 107-109 
    Details
    ISSN: 1573-5109
    Schlagwort(e): antibiois ; Mayetiola destructor ; resistance ; Triticum turgidum
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Hessian fly, Mayetiola destructor (Say), is the major pest of wheat in North Africa. In Morocco, durum wheat (Triticum turgidum L. subsp. durum (Desf). Husn.) losses due to this pest have been estimated at 32%. Genetic resistance is the only economical and practical means of controlling this insect. Field and greenhouse screening of durum wheat genotypes resulted in the identification of one source of resistance to Hessian fly in Morocco. This is the first source of durum wheat Hessian fly-resistance identified in Morocco. This source of resistance expresses a medium level of antibiosis against first-instar Hessian fly larvae; about 25% of the larvae survive on resistant plants. The deployment of varieties that allow for larval survival on resistant plants should reduce selection for biotype development. This source of resistance is being used by CIMMYT/ICARDA and Moroccan breeders to develop resistant durum wheat varieties.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1008615515704
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