@article{fdi:010083372, title = {{A} meta-analysis of combining ability effects in wheat for agronomic traits and drought adaptation : {I}mplications for optimizing biomass allocation}, author = {{S}hamuyarira, {K}. {W}. and {S}himelis, {H}. and {M}athew, {I}. and {Z}engeni, {R}. and {C}haplot, {V}incent}, editor = {}, language = {{ENG}}, abstract = {{C}ombining ability effects for yield related traits can serve as selection criteria to pursue breeding for optimal biomass allocation in wheat ({T}riticum aestivum). {T}he objective of this paper is to provide information based on a retrospective quantitative genetic analysis on combining ability studies of wheat for yield and yield-related traits to predict potential genetic gains achievable in improving biomass allocation for drought tolerance and soil carbon storage. {T}he study compares data on the general combining ability and specific combining ability effects of wheat for yield and related traits under optimum and drought stressed conditions from 40 studies around the world. {D}ays to heading ({DTH}), plant height ({PH}), number of tillers per plant ({TN}), kernels per spike ({KPS}), 1,000-kernel weight ({TKW}), shoot biomass ({SB}), and grain yield ({GY}) exhibited wide variation for general combining ability ({GCA}) and specific combining ability effects. {P}rogeny performance increased by 14.30 and 4.04% for {SB} and {GY}, respectively, compared with parental values under optimum water conditions. {N}umber of tillers and {SB} exhibited positive associations with {GY} (.45 <= r <= .85, p < .05) under both water conditions. {M}eta effect sizes for drought stress were negative. {T}he highest meta-effect sizes were calculated for {DTH} (-4.5) followed by {SB} (-2.0), whereas {KPS} (-1.25) had the lowest. {T}he genetic gains for {PH}, {SB}, and other yield components showed that divergent crosses involving complementary parents could enhance biomass allocation patterns in wheat. {T}his could be used as a basis for improving biomass allocation to roots.}, keywords = {}, booktitle = {}, journal = {{C}rop {S}cience}, volume = {62}, numero = {1}, pages = {139--156}, ISSN = {0011-183{X}}, year = {2022}, DOI = {10.1002/csc2.20644}, URL = {https://www.documentation.ird.fr/hor/fdi:010083372}, }