Fusarium head blight (FHB) and the mycotoxins produced by its causal agents in oats (Avena sativa L.) have become a growing problem in northern countries over the last decades. The development of resistant cultivars would offer a highly needed and economical solution to the problem. To tackle the high genotype×environment interaction of FHB, a combined analysis was carried out on eight greenhouse and 13 field experiments inoculated with DON-producing Fusarium species. Our data included 406 oat genotypes consisting of Nordic cultivars, breeding lines and potentially resistant gene bank accessions. High variation in the DON accumulation estimates in the material shows that the selection of genotypes with better resistance would be valuable. The greenhouse and field studies resulted in significantly different oat genotype susceptibility rankings for both DON and Fusarium infected kernels. The results obtained from the field experiments have more practical relevance for farmers and breeders for the identification of DON resistant cultivars than greenhouse screenings. Days to maturity and the plant height of the genotypes both significantly affected the Fusarium infections and DON in the field. The relationship between Fusarium infected kernels, DONand germination capacity provide an insight into the composition of genotypes with resistance. The core set of 30 oat genotypes, which were phenotyped in several experiments, provides valuable examples of both highly susceptible and moderately resistant oat genotypes.

在过去的几十年中，镰刀菌枯萎病（FHB）和其致病因子在燕麦（Avena sativa L.）中产生的霉菌毒素已成为北方国家日益严重的问题。抗性品种的发展将为该问题提供高度需要且经济的解决方案。为了解决FHB的高基因型×环境相互作用，对接种DON的产镰刀菌的8个温室和13个田间试验进行了联合分析种类。我们的数据包括406种燕麦基因型，包括北欧品种，育种系和可能具有抗性的基因库种质。材料中DON积累估算值的巨大差异表明，选择具有更好抗性的基因型将是有价值的。温室和田间研究结果表明，DON和镰刀菌感染的谷粒的燕麦基因型敏感性排名明显不同。从田间试验获得的结果对农户和育种者进行DON抗性品种鉴定比温室筛选具有更大的实际意义。成熟天数和基因型的株高都显着影响了镰刀菌感染和田间DON。镰刀菌之间的关系被感染的谷粒，DON和发芽能力提供了对具有抗性的基因型组成的了解。在几个实验中对表型进行了表型分析的30种燕麦基因型的核心集合提供了高易感和中等抵抗力燕麦基因型的宝贵实例。