Unoccupied aerial system enabled functional modeling of maize height reveals dynamic expression of loci.

ABSTRACT: Unoccupied aerial systems (UAS) were used to phenotype growth trajectories of inbred maize populations under field conditions. Three recombinant inbred line populations were surveyed on a weekly basis collecting RGB images across two irrigation regimens (irrigated and non-irrigated/rain fed). Plant height, estimated by the 95th percentile (P95) height from UAS generated 3D point clouds, exceeded 70% correlation (r) to manual ground truth measurements and 51% of experimental variance was explained by genetics. The Weibull sigmoidal function accurately modeled plant growth (R ²: >99%; RMSE: <4 cm) from P95 genetic means. The mean asymptote was strongly correlated (r ² = 0.66-0.77) with terminal plant height. Maximum absolute growth rates (mm/day) we

SUBMITTER: Anderson SL 

PROVIDER: S-EPMC7212003 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature