Effects of systematic data reduction on trend estimation from German registration trials.

ABSTRACT:

Key message

VCU trials can provide unbiased estimates of post-breeding trends given that all data is used. Dropping data of genotypes tested for up to two years may result in biased post-breeding trend estimates. Increasing yield trends are seen on-farm in Germany. The increase is based on genetic trend in registered genotypes and changes in agronomic practices and climate. To estimate both genetic and non-genetic trends, historical wheat data from variety trials evaluating a varieties' value for cultivation und use (VCU) were analyzed. VCU datasets include information on varieties as well as on genotypes that were submitted by breeders and tested in trials but could not make it to registration. Therefore, the population of registered varieties (post-registration population) is a s

SUBMITTER: Hartung J 

PROVIDER: S-EPMC9870826 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature