Stability Stress and Adaptation Stress Tolerance Index (STI) Krishicode February 23, 2026 (Last updated: February 23, 2026) 1 minute read 0 comments Stress Tolerance Index (STI) Drought / Heat / Salinity Tolerance Evaluation Formula: STI = (Yₛ × Yₚ) ÷ (Ȳₚ)² Yield under Stress (Yₛ) Yield under Non-Stress (Yₚ) Mean Yield under Non-Stress (Ȳₚ) Calculate STI STI: — Interpretation: — Post navigation Previous: Yield Reduction under Stress (%)Next: Deviation from regression (S²di) Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Related Stories Stability Stress and Adaptation Multi-Location Mean Yield Calculator Krishicode February 23, 2026 0 Stability Stress and Adaptation Genotype × Environment Interaction Index Krishicode February 23, 2026 0 Stability Stress and Adaptation Regression Coefficient (bᵢ) Calculator Krishicode February 23, 2026 0