Introduction of the best criterion for evaluation of tolerance to drought stress in sorghum’s genotypes

• DOI: 10.14720/aas.2021.117.4.2176
• Publication Date: 2021-12-24T09:14:29Z
• Authors: Leyla NAZARI; Ebrahim DEHGHANIAN; Afshar ESTAKHR; Azim KHAZAEI; Behzad SORKHILALE...; Mohammad Reza ABBASI
• Keywords: Drought Tolerance

Sorghum (Sorghum bicolor (L.) Moench) is the fifth important cereal considered a drought-tolerant crop. However, its reduction of grain yield considerably occurs in shortage water. In current study, 10 sorghum genotypes were assessed for their under normal irrigation and water deficit irrigation. As well, efficacy several drought indices was evaluated selection high-yield genotypes. The experiment conducted as split-plot considering three levels main-plot sub-plot. Correlation among indices, clustering along with principal component analysis employed. Yield production significantly positively correlated MP (mean productivity), STI (stress tolerance index), GMP (geometric HM (harmonic mean), YI (yield index) all levels. Therefore, these are more effective high-yielding different conditions. Rank means stress each genotype revealed that TN-04-79 mild KGS23 severe most tolerant.