Summary
Crossability of wheat and rye was investigated during thirteen crop cycles in two contrasting locations to 1) evaluate tetraploid and hexaploid wheat parents in crosses with rye, 2) identify genotypes with high crossability and 3) assess the impact of environment on seed development. The majority of the tetraploid wheats crossed with rye had seed set around 20%, but very low embryo viability. Several wheat genotypes with seed set above 50% were identified. The hexaploid wheats crossed with rye showed poor seed set, but plant recovery was relatively high. The majority of the hexaploid wheats with highest seed set (20–30%) were from China. The results suggest differences in crossability between the rye populations, and wheat species by rye interactions. The crossability of the tetraploid and hexaploid wheats was affected by climate in the two locations.
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Sirkka, A., Immonen, T., Varughese, G. et al. Crossability of tetraploid and hexaploid wheats with ryes for primary triticale production. Euphytica 65, 203–210 (1992). https://doi.org/10.1007/BF00023084
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DOI: https://doi.org/10.1007/BF00023084