Breeding progress of disease resistance and impact of disease severity under natural infections in winter wheat variety trials.

ABSTRACT:

Key message

Breeding progress of resistance to fungal wheat diseases and impact of disease severity on yield reduction in long-term variety trials under natural infection were estimated by mixed linear regression models. This study aimed at quantifying breeding progress achieved in resistance breeding towards varieties with higher yield and lower susceptibility for 6 major diseases, as well as estimating decreasing yields and increasing disease susceptibility of varieties due to ageing effects during the period 1983-2019. A further aim was the prediction of disease-related yield reductions during 2005-2019 by mixed linear regression models using disease severity scores as covariates. For yield and all diseases, overall progress of the fully treated intensity (I2) was considerably h

SUBMITTER: Laidig F 

PROVIDER: S-EPMC8081715 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature