@article{fdi:010092683, title = {{A}ssociation between agronomic traits and metabolite profiles on yield response and water use efficiency in newly developed wheat populations under drought stressed conditions}, author = {{M}utanda, {M}. and {S}himelis, {H}. and {C}haplot, {V}incent and {M}adala, {N}. {E}. and {F}iglan, {S}.}, editor = {}, language = {{ENG}}, abstract = {{M}ultiple trait selection guides the deployment of wheat varieties with high grain yield ({GY}) and water-use efficiency ({WUE}). {T}he study aimed to determine the degree and trend of association between agronomic traits and major metabolites to identify influential traits and metabolites optimised by wheat genotypes for improved {GY}, {WUE} and drought tolerance. {O}ne hundred wheat genotypes were evaluated under drought-stressed ({DS}) and non-stressed ({NS}) using a 5 x 20 alpha-lattice design with two replications. {T}he recorded agronomic traits included {GY}, shoot biomass ({SB}), root biomass ({RB}) and plant biomass ({PB}). {T}he {WUE} in relation to {GY} ({WUE}gy) was computed based on {GY} produced under {DS} and {NS}. {T}he grain of 10 wheat genotypes with high {GY} under {DS} were assayed for their metabolic responses to {DS}. {T}he {WUE}gy showed significant correlations with {PB}, {RB} and {SB} under {DS} and {NS} conditions. {C}itric acid was strongly correlated with {GY} and {WUE}gy than other metabolites under {DS}. {T}he {SB} had high positive direct effects on {GY} under both treatments, while {PB} had high and positive direct effects on {WUE}gy under {DS}. {T}herefore, selection based on {SB}, {PB} and citric acid is effective when selecting wheat ideotypes for drought tolerance and {WUE}.}, keywords = {{C}itric acid ; drought stress ; grain yield ; shoot biomass ; water use ; efficiency}, booktitle = {}, journal = {{A}cta {A}griculturae {S}candinavica {S}ection {B} : {S}oil and {P}lant {S}cience}, volume = {75}, numero = {1}, pages = {2454389 [20 ]}, ISSN = {0906-4710}, year = {2025}, DOI = {10.1080/09064710.2025.2454389}, URL = {https://www.documentation.ird.fr/hor/fdi:010092683}, }