DOI: 10.36347/sjavs.2017.v04i01.002

Pages: 6-12

This study was carried out during the 2015/016 season at two different locations, Soba and AlDouiem, Sudan, to determine the genetic variability for yield and yield components of six sweet sorghum (Sorghum bicolor L.) genotypes under three water treatments at different growth stages. The design used was split plot design with three replications, in which the water treatments were allocated in the main plots and the genotypes in the sub-plots. Genetic variability for yield and yield components sorghum genotypes and the drought tolerance parameters were determined. The results revealed that highly significant differences (P < 0.01) between water treatments were detected for most of the investigated traits. Non significant differences between th of sweete evaluated genotypes were found for most of the traits. Awide range of genetic variability between sweet sorghum for drought tolerances parameters was detected in this study. However, the genotypes that possess drought tolerance were S-8 under drought at vegetative stage, G-9 under drought at reproductive stage and S-8 under normal condition through out the vegetative and reproductive stages. These genotypes could be used further in breeding programs to improve drought tolerance in sweet sorghum.