Genotypic Variation of Nitrogen Use Efficiency and Amino Acid Metabolism in Barley.

ABSTRACT: Owing to the large genetic diversity of barley and its resilience under harsh environments, this crop is of great value for agroecological transition and the need for reduction of nitrogen (N) fertilizers inputs. In the present work, we investigated the diversity of a North African barley genotype collection in terms of growth under limiting N (LN) or ample N (HN) supply and in terms of physiological traits including amino acid content in young seedlings. We identified a Moroccan variety, Laanaceur, accumulating five times more lysine in its leaves than the others under both N nutritional regimes. Physiological characterization of the barley collection showed the genetic diversity of barley adaptation strategies to LN and highlighted a genotype x environment interaction. In all genotypes,

SUBMITTER: Decouard B 

PROVIDER: S-EPMC8854266 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature