@article{fdi:010082772, title = {{A}dapting rainfed rice to climate change : a case study in {S}enegal}, author = {{G}erardeaux, {E}. and {F}alconnier, {G}. and {G}oze, {E}. and {D}efrance, {D}. and {K}ouakou, {P}. {M}. and {L}oison, {R}. and {S}ultan, {B}enjamin and {A}ffholder, {F}. and {M}uller, {B}.}, editor = {}, language = {{ENG}}, abstract = {{R}ainfed crop production predominates in {W}est {A}frica. {R}ice is an important staple food, especially in {S}enegal. {T}he scope for increase in rice production under irrigated conditions is uncertain. {R}ainfed rice is therefore a key component for regional food security impelling agronomists to assess climate change impact on rainfed rice yield and to design rainfed rice ideotypes suited to future climate scenarios. {T}he {DSSAT} {CSM}-{CERES}-{R}ice model was thus calibrated and evaluated on 19 agronomic experiments conducted in 2012, 2013, and 2014, in 6 locations, with 21 cultivars and two fertilization levels (20 and 80 kg {N} ha(-1)). {S}imulations were then carried out with the crop model forced with the downscaled projections of seven climate models, with and without considering the impact of an increase in atmospheric [{CO}2], using an ensemble of global circulation models and two {R}epresentative {C}oncentration {P}athways ({RCP}2.6 and {RCP}8.5). {S}imulated rice yield was divided by two over the century with {RCP}8.5 and stagnated with {RCP}2.6. {E}levated [{CO}2] significantly increased yields, but this effect could not offset the yield decline due to elevated temperatures. {C}ultivars with longer vegetative phases and greater temperature tolerance were better adapted to climate change than current cultivars. {U}sing these new cultivars with the recommended fertilization rate (80 kg {N} ha(-1)) could offset the yield decline due to climate change. {F}or the first time, we bring together a study based on a process-based crop model handling crop response to elevated [{CO}2], a large set of field experiments and up-to-date climate projections (i) to provide useful insights into plausible impacts of climate change on rainfed rice in {S}enegal and (ii) to identify cultivar characteristics relevant for adaptation to future possible climates. {O}ur findings will help set priorities for breeding resilient cultivar in the region.}, keywords = {{O}ryza sativa ; {C}rop modeling ; {C}ultivar ; {I}deotype ; {CSM}-{CERES}-{R}ice ; {C}arbon dioxide ; {SENEGAL}}, booktitle = {}, journal = {{A}gronomy for {S}ustainable {D}evelopment}, volume = {41}, numero = {4}, pages = {57 [16 ]}, ISSN = {1774-0746}, year = {2021}, DOI = {10.1007/s13593-021-00710-2}, URL = {https://www.documentation.ird.fr/hor/fdi:010082772}, }