Genotypic diversity and plasticity of root system architecture to nitrogen availability in oilseed rape.

ABSTRACT: In the emerging new agricultural context, a drastic reduction in fertilizer usage is required. A promising way to maintain high crop yields while reducing fertilizer inputs is to breed new varieties with optimized root system architecture (RSA), designed to reach soil resources more efficiently. This relies on identifying key traits that underlie genotypic variability and plasticity of RSA in response to nutrient availability. The aim of our study was to characterize the RSA plasticity in response to nitrogen limitation of a set of contrasted oilseed rape genotypes, by using the ArchiSimple model parameters as screening traits. Eight accessions of Brassica napus were grown in long tubes in the greenhouse, under two contrasting levels of nitrogen availability. After plant excavation, roots

SUBMITTER: Lecarpentier C 

PROVIDER: S-EPMC8136655 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature