[Introgression of the reduced height gene Rht10 from the wheat cultivar Ai-bian 1 into the triticale genotype].
A gene determining reduced height, Rht10, from the wheat cultivar Ai-Bian 1 was introgressed into the triticale genotype. Initially, Ai-Bian 1 was crossed with the wheat cultivar Chinese Spring (CS), a carrier of Kr genes, to overcome the uncrossability of this cultivar with rye. Amphidiploids were produced by hybridizing the F2 (CS x Ai-Bian 1) plants displaying reduced height (at the level of Ai-Bian 1) with rye. Free pollination of F1 (F2 of CS x Ai-Bian 1) x Saratovskaya 7 with triticale pollen gave fertile viable hybrids; the majority of hybrids were phenotypically closer to octoploid triticale; however, the variants intermediate between octo- and hexaploids were also present. The height of amphidiploids varied from 40 to 90 cm, and the grain yield per spike amounted on the average to 11.7--24.7 grains, which exceeded essentially this value in F1 plants.
Kurkiev
K U
KU
D001947:Breeding; D017343:Genes, Plant; D005838:Genotype; D012434:Secale / Q000235:genetics; D014908:Triticum / Q000235:genetics* / Q000502:physiology