Tetraploid Triticale from Aegilops Squarrosa L. X Secale L. SPP

Abstract

Tetraploid triticales have been obtained by direct crossing of Aegilops squarrosa (4x) with Secale cereale (4x) and S. cereale-montanum (4x), and by chromosome doubling of the hybrid A. squarrosa (2x) x S. cereale (2x). Vigourous spring growth is the most interesting agronomic trait of this amphiploid In field tests. octoploid and tetraploid triticales have also been obtained in order to increase the genetic variability df the later. This hybrid (DDRRAB) is self sterile but grain were obtained after backcrossing with tetraploid triticale. NR - 0 PU - KLUWER ACADEMIC PUBL PI - DORDRECHT PA - PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS