Co-Evolution of Sink and Source in the Recent Breeding History of Winter Wheat in Germany.

ABSTRACT: Optimizing the interplay between sinks and sources is of crucial importance for breeding progress in winter wheat. However, the physiological limitations of yield from source (e.g. green canopy duration, GCD) and sink (e.g. grain number) are still unclear. Furthermore, there is little information on how the source traits have been modified during the breeding history of winter wheat. This study analyzed the breeding progress of sink and source components and their relationships to yield components. Field trials were conducted over three years with 220 cultivars representing the German breeding history of the past five decades. In addition, genetic associations of QTL for the traits were assessed with genome-wide association studies. Breeding progress mainly resulted from an increase in gra

SUBMITTER: Lichthardt C 

PROVIDER: S-EPMC7019858 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature