Key message: Mid-parent values of Fusarium head blight (FHB) resistance tested across several locations are a good predictor of hybrid performance caused by a preponderance of additive gene action in wheat. Abstract: Hybrid breeding is intensively discussed as one solution to boost yield and yield stability including an enhanced biotic stress resistance. Our objectives were to investigate (1) the heterosis for Fusarium head blight (FHB) resistance, (2) the importance of general (GCA) vs. specific combining ability (SCA) for FHB resistance, and (3) the possibility to predict the FHB resistance of the hybrids by the parental means. We re-analyzed phenotypic data of a large population comprising 1604 hybrids and their 120 female and 15 male parental lines evaluated in inoculation trials across seven environments. Mid-parent heterosis of FHB severity averaged 9%, with a range from 36 to +35%. Mean better parent heterosis was 2% and 78 of the hybrids significantly (P
DOI:
https://doi.org/10.1007/s00122-016-2826-8Altmetric score:
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Publication year
2022
Authors
Miedaner T; Schulthess A W; Gowda M; Reif C; Longin C F H
Language
English
Keywords
biotic, resistance, fusarium, heterosis, hybrids
