Intergeneric hybrids between Triticum aestivum L. and wild Triticeae

摘要

Intergeneric hybridizations for the transfer of disease resistance and cold and drought tolerance were performed between 34 Triticum aestivum L. cultivars or strains and 10 wild Triticeae species (Agropyron J. Gaertn., Elymus L., Elytrigia Desv., Lophopyrum A. Löve). The crosses of wheat and A. cristatum, A. pectiniforme, E. gmelinii ssp. ugamicum, E. scabriglumis, E. trachycaulus, Elytrigia intermedia ssp. barbulala, Elytrigia repens, and Lophopyrum elongalum succeeded. The plantlets derived were cloned in vitro. In the combinations T. aestivum x Elytrigia intermedia ssp. barbulata and T. aestivum x Elytrigia repens, a segregating F2 and a BC1 generation were obtained. All other combinations have so far been perennial and sterile. By crossing Triticale ‘Lasko’ x Lophopyrum elongalum (2x) a good yielding Agrotriticale was produced.