Drought is one of the major constraints limiting crop production worldwide. Croprngrowth models predict that this issue will be more severe in the future. Droughtrnimpairs normal growth, disturbs water relations, reduces water use efficiency andrnaffects yield. Plants, however, have a variety of morphological, physiological andrnbiochemical responses at cellular and whole organism level, making it a morerncomplex phenomenon. A field experiment was conducted at Shewa robit to evaluaternthe physiological and agronomic performance of different SG sorghum accessions. Tornachieve this, three sorghum genotypes (Sorcoll 141/07, Sorcoll 146/07 and, Sorcollrn163/07) and a check (Afeso) accessions were used in the experiment. The experimentrnwas laid down in a randomized complete block design (RCBD). The data onrnmorphological, physiological and biochemical traits such as girth diameter, numberrnof tillers, total green leaf area, chlorophyll content, rate of leaf senescence, relativernwater content, assimilation rate, WUE, SDW, RDW, RSR, leaf proline, nitrogen,rnprotein, soluble sugar contents, and yield revealed significant difference amongrnaccessions at P < 0.05. Afeso and Sorcoll 163/07 showed better stress tolerance andrnSG property. These accessions were also selected for their maximum grain yield perrnhectare, while accession Sorcoll 146/07 was selected for its early maturity.rnCorrelation analysis revealed that GD, number of tillers, chlorophyll content, GLA,rnRWC, WUE, lower rate of leaf senescence, SDW, RDW and RSR had significantlyrnpositive relation with grain yield per hectare and have been found to be effectivernscreening tools for stress tolerance and SG property. So, they can be used in sorghumrnbreeding program.rnKey words/ phrases: Agronomic performance; Biochemical traits; Sorghumrnaccessions; Stay-green; Stress tolerance.