Abstract
The agronomic performance of 9 doubled haploid (DH) lines of Chinese Spring, 6 DH lines of Hope, 14 DH lines of the single chromosome substitution line Chinese Spring (Hope 5 A) and their respective parents was analyzed under field conditions. Seventeen Chinese Spring DH lines derived from wheat x Hordeum bulbosum crosses were also included for comparison. No significant variation was detected in either population of Chinese Spring DH lines and neither DH population differed from its parent. The Hope DH lines differed significantly for tiller biomass, spikelet number per ear, ear grain weight and 50-grain weight. However, all the variation could be attributed to the poor performance of only one line. Chinese Spring (Hope 5 A) DH lines showed significant variation for ear emergence time, but this was probably due to genetic heterogeneity in the parental stock. Overall, the results suggest that most DH lines produced by the wheat x maize method resemble their wheat parent, and that the variation induced in DH production is likely to be similar to that found in DHs from wheat x Hordeum bulbosum crosses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
