Wheat
Haploids
Through
Crosses
with
Hordeum
H.Bulbosum -
Barclay (1975) demonstrated that the haploids in hexaploid wheat (var. Chinese Spring) can also be produced through chromosome elimination in hybrids of wheat with H. bulbosum (both 2x and 4x). A frequency of 13.7% grain set with 2x bulbosum and 43.7% grain set with 4x bulbosum, were obtained.
In order to explore the possibility of further use of this technique in wheat breeding programmes, studies were conducted at Cambridge (U.K.) on the crossability of wheat with H. bulbosum (Snape et - al., 1979). It was found that most of the European varieties did not cross, but four of the six Australian varieties were successfully crossed.



