biostudies-literatureAmombo EOCP Group690https://www.ebi.ac.uk/biostudies/studies/S-EPMC11264756biostudies-literatureUnknown24(1)<h4>Background</h4>Sorghum (Sorghum bicolor) is a promising opportunity crop for arid regions of Africa due to its high tolerance to drought and heat stresses. Screening for genetic variability in photosynthetic regulation under salt stress can help to identify target trait combinations essential for sorghum genetic improvement. The primary objective of this study was to identify reliable indicators of photosynthetic performance under salt stress for forage yield within a panel of 18 sorghum varieties from stage 1 (leaf 3) to stage 7 (late flowering to early silage maturity). We dissected the genetic diversity and variability in five stress-sensitive photosynthetic parameters: nonphotochemical chlorophyll fluorescence quenching (NPQ), the electron transport rate (ETR), the maximum potentiaBMC plant biologyScreening for genetic variability in photosynthetic regulation provides insights into salt performance traits in forage sorghum under salt stress.PMC11264756FPB_SPA005_2020Nilahyane AAmombo EGbibar MEl Gharous MGhoulam CAshilenje DSOukarroum AHirich AKouisni LfalseScreening for genetic variability in photosynthetic regulation provides insights into salt performance traits in forage sorghum under salt stress.<h4>Background</h4>Sorghum (Sorghum bicolor) is a promising opportunity crop for arid regions of Africa due to its high tolerance to drought and heat stresses. Screening for genetic variability in photosynthetic regulation under salt stress can help to identify target trait combinations essential for sorghum genetic improvement. The primary objective of this study was to identify reliable indicators of photosynthetic performance under salt stress for forage yield within a panel of 18 sorghum varieties from stage 1 (leaf 3) to stage 7 (late flowering to early silage maturity). We dissected the genetic diversity and variability in five stress-sensitive photosynthetic parameters: nonphotochemical chlorophyll fluorescence quenching (NPQ), the electron transport rate (ETR), the maximum potentia2024-01-01T00:00:00Z2024 Jul2025-05-18T13:26:45.881Z2025-05-18T13:26:45.881ZS-EPMC112647563903048510.1186/s12870-024-05406-9