@article{fdi:010091176,
  title = {{G}enetic variation and association of yield, yield components, and carbon storage in sorghum ({S}orghum bicolor [{L}.] {M}oench) genotypes},
  author = {{N}gidi, {A}. and {S}himelis, {H}. and {A}bady, {S}. and {C}haplot, {V}incent and {F}iglan, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}rait heritability and the response to selection depend on genetic variation, a prerequisite to developing sorghum varieties with desirable agronomic traits and high carbon sequestration for sustainable crop production and soil health. {T}he present study aimed to assess the extent of genetic variability and associations among agronomic and carbon storage traits in selected sorghum genotypes to identify the best candidates for production or breeding. {F}ifty genotypes were evaluated at {U}kulinga, {B}ethlehem and {S}ilverton sites in {S}outh {A}frica during the 2022/23 growing season. {T}he following agronomic and carbon storage traits were collected: days to 50% heading ({DTH}), days to 50% maturity ({DTM}), plant height ({PH}), total plant biomass ({PB}), shoot biomass ({SB}), root biomass ({RB}), root-to-shoot biomass ratio ({RS}), grain yield ({GY}), harvest index ({HI}), shoot carbon content ({SC}c), root carbon content ({RC}c), grain carbon content ({GC}c), total plant carbon stock ({PC}s), shoot carbon stock ({SC}s), root carbon stock ({RC}s), and root-to-shoot carbon stock ratio ({RC}s/{SC}s), and grain carbon stock ({GC}s). {H}igher genotypic coefficient of variations ({GCV}s) were recorded for {GY} at 45.92%, {RB} (39.24%), {RC}s/{SC}s (38.45), and {RC}s (34.62). {H}igher phenotypic coefficient of variations ({PCV}s) were recorded for {PH} (68.91%), followed by {GY} (51.8%), {RB} (50.51%), {RS} (41.96%), {RC}s/{SC}s (44.90%), and {GC}s (41.90%). {H}igh broad-sense heritability and genetic advance were recorded for {HI} (83.76 and 24.53%), {GY} (78.59 and 9.98%), {PB} (74.14 and 13.18%) and {PC}s (53.63 and 37.57%), respectively, suggesting a marked genetic contribution to the traits. {G}rain yield exhibited positive association with {HI} (r = 0.76; r = 0.79), {DTH} (r = 0.13; r = 0.31), {PH} (r = 0.1; r = 0.27), {PB} (r = 0.01; r = 0.02), {RB} (r = 0.05; r = 0.06) based on genotypic and phenotypic correlations, respectively. {F}urther, the path analysis revealed significant positive direct effects of {SB} (0.607) and {RB} (0.456) on {GY}. {T}he {RS} exerted a positive and significant indirect effect (0.229) on grain yield through {SB}. {T}he study revealed that {PB}, {SB}, {RB}, {RS}, {RC}s, and {RC}s/{SC}s are the principal traits when selecting sorghum genotypes with high yield and carbon storage capacity.},
  keywords = {{C}arbon sequestration ; {G}enetic advance ; {G}enetic variability ; {B}road-sense heritability ; {O}rganic carbon ; {S}orghum ; {AFRIQUE} {DU} {SUD}},
  booktitle = {},
  journal = {{BMC} {G}enomic {D}ata},
  volume = {25},
  numero = {1},
  pages = {74 [14 ]},
  year = {2024},
  DOI = {10.1186/s12863-024-01256-4},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091176},
}