The intergeneric hybrid Hordeum vulgare x Psathyrostachys fragilis was fairly easily obtained. During each growing season the intermediate, perennial hybrid yielded haploid tillers of H. vulgare. Late in one season few, hybrid tillers headed. The morphology, cytology and enzymatic patterns of hybrid and haploid tillers were investigated.
Bothmer, R., Jacobsen, N., Bagger Jørgensen, R., & Linde-Laursen, I. (1984). Haploid Barley from the Intergeneric Cross Hordeum vulgare x Psathyrostachys fragilis. Euphytica, 33(2), 363-367. https://doi.org/10.1007/BF00021133