Quantitative-Genetic Evaluation of Resistances to Five Fungal Diseases in A Large Triticale Diversity Panel (×Triticosecale)

The man-made cereal triticale was fully resistant to the biotrophic diseases powdery mildew, leaf rust, yellow and stem rust from its introduction in Europe mid-1970s until about 1990. In following years, new races that were able infect at least some genotypes developed all four pathogen populations, resistance breeding came into focus. Here, we analyzed 656 winter cultivars 12 countries for these Fusarium head blight (FHB) up 8 location-year combinations (environments). FHB ratings corrected plant height heading stage by comparing three statistical methods. Significant (p < 0.001) genetic variances found resistances with moderate high entry-mean heritabilities. All traits showed a normal distribution, exception of where skewed towards resistance. There no substantial correlations among five disease (r = −0.04 0.26). However, several detected multi-disease rating below average simultaneously. future, such must be selected primarily cope future challenges less pesticide use global climate change.